TailMyPicks

Check any Polymarket wallet’s real record.

Wallet 0xfd64…c090

Rebuilt .

Summary

Qualified picks
129
Categories scored
7
Categories below 50
3

Best Category: NHL, grading 55 out of 100 (+0.05 per pick).

Best Category NHL at 55 out of 100; worst NFL at 40.

What is a Tail Score?

A mark out of 100, per Category. 50 means no edge at all — this wallet did about what the prices it paid implied it would. Above 50 it beat those prices; below 50 it did worse than them.

The scale does not move. 100 is a wallet beating the prices it paid by 0.45 per pick and 0 is losing to them by the same, on every wallet, on every page, in every month. So a grade you screenshot today still means what it meant when you took it, and two wallets can be put side by side.

Nobody reaches either end. Across every wallet TailMyPicks has scored, the marks run from roughly 5 to 87 — which is what a fixed ruler costs, and what buys the sentence above.

It is not a win rate. A wallet can win four Picks in five and still grade below 50, if the market was already pricing those outcomes at 90c — it paid for the wins rather than finding them. The vs expected and Avg entry columns below are what separate the two.

The mark is deliberately pulled toward 50 when there is little evidence. Three lucky Picks do not produce a high grade; several hundred consistent ones do. So a modest grade on thousands of Picks means something a high grade on twelve does not.

Because it is shrunk this way, a Category grade is a conservative reading. The headline figure for a wallet is its best Category, so it always understates how badly the wallet does in its worst one — which is why the table below is per Category and not one blended number.

Record by Category

Ordered by how much this wallet actually traded in each Category, not by score — so the Categories it plays most appear first whether they went well or badly. Open any row to see the picks its numbers were computed from — all of them.

CategoryQualified picksWin ratevs expectedRealizable edgeAvg entryROI per pickTail Score
NBA Inactivelast resolved Dec 15, 2025, EST3863.2%24 W · 14 L+2.8wins+0.07per pick56cpaid+12%equal weight55+0.04 edge/pick
NBA — the 38 picks behind this row

Every qualified pick this wallet made in NBA, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

MarketEntrySizeResultResolvedReturnP/L held
Spread: Warriors (-3.5)backed Warriors · on Polymarket (opens in a new tab)56c$699Lost — open this pick on its own pageDec 15, 2025, EST-100%-$699
Timberwolves vs. Warriorsbacked Warriors · on Polymarket (opens in a new tab)62c$31Lost — open this pick on its own pageDec 13, 2025, EST-100%-$31
Timberwolves vs. Warriors: O/U 231.5backed Under · on Polymarket (opens in a new tab)58c$35Lost — open this pick on its own pageDec 13, 2025, EST-100%-$35
Pacers vs. 76ersbacked 76ers · on Polymarket (opens in a new tab)68c$25Won — open this pick on its own pageDec 12, 2025, EST+47.1%+$11.76
Pacers vs. 76ers: O/U 224.5backed Under · on Polymarket (opens in a new tab)58c$29Won — open this pick on its own pageDec 12, 2025, EST+72.4%+$21
Nuggets vs. Kings: O/U 240.5backed Under · on Polymarket (opens in a new tab)49c$25Lost — open this pick on its own pageDec 12, 2025, EST-100%-$25
Spread: Trail Blazers (-4.5)backed Trail Blazers · on Polymarket (opens in a new tab)48c$25Lost — open this pick on its own pageDec 12, 2025, EST-100%-$25
Spurs vs. Lakers: O/U 236.5backed Over · on Polymarket (opens in a new tab)61c$75Won — open this pick on its own pageDec 11, 2025, EST+62.6%+$46.98
Suns vs. Thunder: O/U 224.5backed Under · on Polymarket (opens in a new tab)51c$25Lost — open this pick on its own pageDec 10, 2025, EST-100%-$25
Spread: Knicks (-3.5)backed Knicks · on Polymarket (opens in a new tab)55c$325Won — open this pick on its own pageDec 10, 2025, EST+81.8%+$265.91
Suns vs. Timberwolves: O/U 226.5backed Under · on Polymarket (opens in a new tab)57c$25Won — open this pick on its own pageDec 9, 2025, EST+75.4%+$18.86
Kings vs. Pacers: O/U 235.5backed Under · on Polymarket (opens in a new tab)53c$25Won — open this pick on its own pageDec 8, 2025, EST+88.7%+$22.17
Spread: Thunder (-9.5)backed Thunder · on Polymarket (opens in a new tab)59c$125Won — open this pick on its own pageDec 8, 2025, EST+69.4%+$86.81
Warriors vs. Bullsbacked Warriors · on Polymarket (opens in a new tab)53c$25Won — open this pick on its own pageDec 7, 2025, EST+88.7%+$22.17
Nuggets vs. Hornets: O/U 235.5backed Over · on Polymarket (opens in a new tab)53c$50Lost — open this pick on its own pageDec 7, 2025, EST-100%-$50
Kings vs. Heat: O/U 240.5backed Under · on Polymarket (opens in a new tab)51c$25Won — open this pick on its own pageDec 7, 2025, EST+96.1%+$24.02
Suns vs. Rockets: O/U 222.5backed Under · on Polymarket (opens in a new tab)55c$30Won — open this pick on its own pageDec 6, 2025, EST+81.3%+$24.4
76ers vs. Bucks: O/U 225.5backed Under · on Polymarket (opens in a new tab)61c$25Won — open this pick on its own pageDec 6, 2025, EST+63.9%+$15.98
Spread: Nuggets (-4.5)backed Nuggets · on Polymarket (opens in a new tab)54c$25Lost — open this pick on its own pageDec 6, 2025, EST-100%-$25
Spurs vs. Cavaliers: O/U 237.5backed Over · on Polymarket (opens in a new tab)55c$25Won — open this pick on its own pageDec 6, 2025, EST+81.8%+$20.45
Timberwolves vs. Pelicans: O/U 235.5backed Under · on Polymarket (opens in a new tab)55c$25Lost — open this pick on its own pageDec 5, 2025, EST-100%-$25
Lakers vs. Raptors: O/U 227.5backed Over · on Polymarket (opens in a new tab)55c$25Won — open this pick on its own pageDec 4, 2025, EST+81.8%+$20.45
Warriors vs. 76ers: O/U 224.5backed Under · on Polymarket (opens in a new tab)56c$30Won — open this pick on its own pageDec 4, 2025, EST+78.6%+$23.57
Celtics vs. Wizards: O/U 231.5backed Under · on Polymarket (opens in a new tab)51c$25Lost — open this pick on its own pageDec 4, 2025, EST-100%-$25
Heat vs. Mavericks: O/U 241.5backed Under · on Polymarket (opens in a new tab)58c$30Won — open this pick on its own pageDec 4, 2025, EST+72.4%+$21.72
Showing 25 of 38 picks, newest first.
NFL Inactivelast resolved Dec 14, 2025, EST3135.5%11 W · 20 L-5.3wins-0.17per pick53cpaid-29.8%equal weight40-0.09 edge/pick
NFL — the 31 picks behind this row

Every qualified pick this wallet made in NFL, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

MarketEntrySizeResultResolvedReturnP/L held
Packers vs. Broncosbacked Broncos · on Polymarket (opens in a new tab)49c$795Won — open this pick on its own pageDec 14, 2025, EST+104.1%+$827.45
Spread: Buccaneers (-4.5)backed Buccaneers · on Polymarket (opens in a new tab)55c$55Lost — open this pick on its own pageDec 12, 2025, EST-100%-$55
Eagles vs. Chargers: O/U 42.5backed Under · on Polymarket (opens in a new tab)54c$25Won — open this pick on its own pageDec 9, 2025, EST+85.2%+$21.3
Eagles vs. Chargers: O/U 41.5backed Over · on Polymarket (opens in a new tab)52c$50Lost — open this pick on its own pageDec 9, 2025, EST-100%-$49.51
Texans vs. Chiefsbacked Chiefs · on Polymarket (opens in a new tab)28c$25Lost — open this pick on its own pageDec 8, 2025, EST-100%-$25
Spread: Chiefs (-3.5)backed Chiefs · on Polymarket (opens in a new tab)55c$30Lost — open this pick on its own pageDec 8, 2025, EST-100%-$30
Spread: Chiefs (-4.5)backed Chiefs · on Polymarket (opens in a new tab)51c$26Lost — open this pick on its own pageDec 8, 2025, EST-100%-$26
Spread: LAR (-7.5)backed LAR · on Polymarket (opens in a new tab)54c$25Won — open this pick on its own pageDec 7, 2025, EST+85.2%+$21.3
Spread: Broncos (-7.5)backed Broncos · on Polymarket (opens in a new tab)63c$100Lost — open this pick on its own pageDec 7, 2025, EST-100%-$100
Spread: Browns (-4.5)backed Browns · on Polymarket (opens in a new tab)47c$25Lost — open this pick on its own pageDec 7, 2025, EST-100%-$25
Colts vs. Jaguarsbacked Jaguars · on Polymarket (opens in a new tab)46c$25Won — open this pick on its own pageDec 7, 2025, EST+117.4%+$29.35
Steelers vs. Ravens: O/U 43.5backed Under · on Polymarket (opens in a new tab)52c$25Lost — open this pick on its own pageDec 7, 2025, EST-100%-$25
Dolphins vs. Jets: O/U 42.5backed Under · on Polymarket (opens in a new tab)56c$28Lost — open this pick on its own pageDec 7, 2025, EST-100%-$28
Saints vs. Buccaneers: O/U 43.5backed Under · on Polymarket (opens in a new tab)57c$29Lost — open this pick on its own pageDec 7, 2025, EST-100%-$29
Spread: Seahawks (-6.5)backed Seahawks · on Polymarket (opens in a new tab)51c$25Won — open this pick on its own pageDec 7, 2025, EST+96.1%+$24.02
Seahawks vs. Falcons: O/U 44.5backed Under · on Polymarket (opens in a new tab)53c$25Lost — open this pick on its own pageDec 7, 2025, EST-100%-$25
Commanders vs. Vikings: O/U 43.5backed Under · on Polymarket (opens in a new tab)49c$25Won — open this pick on its own pageDec 7, 2025, EST+104.1%+$26.02
Spread: Lions (-3.5)backed Cowboys · on Polymarket (opens in a new tab)55c$30Lost — open this pick on its own pageDec 5, 2025, EST-100%-$30
Cowboys vs. Lions: O/U 55.5backed Under · on Polymarket (opens in a new tab)53c$25Lost — open this pick on its own pageDec 5, 2025, EST-100%-$25
Spread: Patriots (-7.5)backed Giants · on Polymarket (opens in a new tab)54c$55Lost — open this pick on its own pageDec 2, 2025, EST-100%-$55
Broncos vs. Commandersbacked Broncos · on Polymarket (opens in a new tab)66c$346Won — open this pick on its own pageDec 1, 2025, EST+51.5%+$178.24
Spread: Ravens (-7.5)backed Ravens · on Polymarket (opens in a new tab)55c$50Lost — open this pick on its own pageNov 28, 2025, EST-100%-$50
Spread: Chiefs (-3.5)backed Cowboys · on Polymarket (opens in a new tab)53c$30Won — open this pick on its own pageNov 27, 2025, EST+88.7%+$26.6
Packers vs. Lionsbacked Lions · on Polymarket (opens in a new tab)60c$40Lost — open this pick on its own pageNov 27, 2025, EST-100%-$40
Spread: 49ers (-7.5)backed Panthers · on Polymarket (opens in a new tab)52c$24Lost — open this pick on its own pageNov 25, 2025, EST-100%-$23.66
Showing 25 of 31 picks, newest first.
CS2 Inactivelast resolved Dec 14, 2025, EST2437.5%9 W · 15 L-4.6wins-0.19per pick57cpaid-36.8%equal weight40-0.09 edge/pick
CS2 — the 24 picks behind this row

Every qualified pick this wallet made in CS2, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

MarketEntrySizeResultResolvedReturnP/L held
Counter-Strike: Vitality vs FaZe (BO5)backed FaZe · on Polymarket (opens in a new tab)24c$100Lost — open this pick on its own pageDec 14, 2025, EST-100%-$100
Counter-Strike: FaZe vs Natus Vincere (BO3)backed Natus Vincere · on Polymarket (opens in a new tab)56c$168Lost — open this pick on its own pageDec 13, 2025, EST-100%-$168
Counter-Strike: Spirit vs Vitality (BO3)backed Vitality · on Polymarket (opens in a new tab)55c$298Won — open this pick on its own pageDec 13, 2025, EST+81.8%+$243.82
Counter-Strike: FURIA vs Natus Vincere (BO3)backed FURIA · on Polymarket (opens in a new tab)77c$25Lost — open this pick on its own pageDec 12, 2025, EST-100%-$25
Counter-Strike: BIG vs Sangal (BO3)backed BIG · on Polymarket (opens in a new tab)57c$30Won — open this pick on its own pageDec 12, 2025, EST+75.4%+$22.63
Counter-Strike: Spirit vs Team Falcons (BO3)backed Team Falcons · on Polymarket (opens in a new tab)55c$15Lost — open this pick on its own pageDec 11, 2025, EST-100%-$15
Counter-Strike: G2 vs Team Falcons (BO3)backed Team Falcons · on Polymarket (opens in a new tab)70c$25Won — open this pick on its own pageDec 7, 2025, EST+42.9%+$10.71
Counter-Strike: 3DMAX vs FaZe (BO3)backed FaZe · on Polymarket (opens in a new tab)62c$31Won — open this pick on its own pageDec 6, 2025, EST+61.3%+$19
Counter-Strike: MOUZ vs Team Falcons (BO3)backed Team Falcons · on Polymarket (opens in a new tab)59c$30Lost — open this pick on its own pageDec 6, 2025, EST-100%-$30
Counter-Strike: FURIA vs G2 (BO3)backed FURIA · on Polymarket (opens in a new tab)70c$141Won — open this pick on its own pageDec 5, 2025, EST+43.5%+$61.49
Counter-Strike: PARIVISION vs 3DMAX (BO3)backed PARIVISION · on Polymarket (opens in a new tab)57c$25Lost — open this pick on its own pageDec 5, 2025, EST-100%-$25
Counter-Strike: MOUZ vs Spirit (BO3)backed Spirit · on Polymarket (opens in a new tab)54c$120Won — open this pick on its own pageDec 5, 2025, EST+85.2%+$102.22
Counter-Strike: Passion UA vs Liquid (BO3)backed Liquid · on Polymarket (opens in a new tab)60c$219Lost — open this pick on its own pageDec 5, 2025, EST-100%-$219.4
Counter-Strike: paiN vs Natus Vincere (BO1)backed Natus Vincere · on Polymarket (opens in a new tab)66c$33Won — open this pick on its own pageDec 5, 2025, EST+51.5%+$17
Counter-Strike: FaZe vs TheMongolz (BO1)backed FaZe · on Polymarket (opens in a new tab)53c$25Lost — open this pick on its own pageDec 5, 2025, EST-100%-$25
Counter-Strike: paiN vs 3DMAX (BO1)backed paiN · on Polymarket (opens in a new tab)51c$26Won — open this pick on its own pageDec 4, 2025, EST+96.1%+$24.5
Counter-Strike: MIBR vs Imperial (BO1)backed Imperial · on Polymarket (opens in a new tab)56c$30Won — open this pick on its own pageNov 29, 2025, EST+78.6%+$23.57
Counter-Strike: Liquid vs B8 (BO1)backed Liquid · on Polymarket (opens in a new tab)55c$30Lost — open this pick on its own pageNov 29, 2025, EST-100%-$30
Counter-Strike: PARIVISION vs Legacy (BO3)backed Legacy · on Polymarket (opens in a new tab)48c$23Lost — open this pick on its own pageNov 27, 2025, EST-100%-$23.46
Counter-Strike: NRG vs Imperial (BO3)backed NRG · on Polymarket (opens in a new tab)44c$25Lost — open this pick on its own pageNov 27, 2025, EST-100%-$25
Counter-Strike: The Huns Esports vs Lynn Vision (BO3)backed Lynn Vision · on Polymarket (opens in a new tab)69c$35Lost — open this pick on its own pageNov 25, 2025, EST-100%-$35
Counter-Strike: FaZe vs NRG (BO1)backed FaZe · on Polymarket (opens in a new tab)59c$50Lost — open this pick on its own pageNov 24, 2025, EST-100%-$50
Counter-Strike: fnatic vs Fluxo (BO1)backed fnatic · on Polymarket (opens in a new tab)62c$25Lost — open this pick on its own pageNov 24, 2025, EST-100%-$25
Counter-Strike: NIP vs Lynn Vision (BO1)backed Lynn Vision · on Polymarket (opens in a new tab)41c$25Lost — open this pick on its own pageNov 24, 2025, EST-100%-$25
All 24 picks, newest first.
NHL Inactivelast resolved Dec 13, 2025, EST1866.7%12 W · 6 L+2.0wins+0.11per pick56cpaid+21.1%equal weight55+0.05 edge/pick
NHL — the 18 picks behind this row

Every qualified pick this wallet made in NHL, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

MarketEntrySizeResultResolvedReturnP/L held
Kraken vs. Utah: O/U 6.5backed Under · on Polymarket (opens in a new tab)60c$35Lost — open this pick on its own pageDec 13, 2025, EST-100%-$35
Spread: Blues (-1.5)backed Blackhawks · on Polymarket (opens in a new tab)69c$35Won — open this pick on its own pageDec 13, 2025, EST+44.9%+$15.72
Blackhawks vs. Bluesbacked Blackhawks · on Polymarket (opens in a new tab)50c$35Lost — open this pick on its own pageDec 13, 2025, EST-100%-$35
Sabres vs. Flames: O/U 6.5backed Under · on Polymarket (opens in a new tab)54c$25Lost — open this pick on its own pageDec 9, 2025, EST-100%-$25
Spread: Stars (-1.5)backed Stars · on Polymarket (opens in a new tab)50c$30Won — open this pick on its own pageDec 6, 2025, EST+100%+$30
Utah vs. Ducksbacked Ducks · on Polymarket (opens in a new tab)51c$26Lost — open this pick on its own pageDec 4, 2025, EST-100%-$25.5
Sabres vs. Flyersbacked Flyers · on Polymarket (opens in a new tab)46c$25Won — open this pick on its own pageDec 4, 2025, EST+117.4%+$29.35
Sabres vs. Wild: O/U 6.5backed Under · on Polymarket (opens in a new tab)56c$20Won — open this pick on its own pageNov 30, 2025, EST+78.6%+$15.71
Sabres vs. Wildbacked Wild · on Polymarket (opens in a new tab)58c$45Lost — open this pick on its own pageNov 30, 2025, EST-100%-$45
Flyers vs. Devilsbacked Devils · on Polymarket (opens in a new tab)57c$30Lost — open this pick on its own pageNov 29, 2025, EST-100%-$30
Utah vs. Starsbacked Stars · on Polymarket (opens in a new tab)57c$25Won — open this pick on its own pageNov 29, 2025, EST+75.7%+$18.93
Avalanche vs. Wild: O/U 6.5backed Under · on Polymarket (opens in a new tab)56c$25Won — open this pick on its own pageNov 28, 2025, EST+78.6%+$19.64
Flyers vs. Panthers: O/U 5.5backed Over · on Polymarket (opens in a new tab)49c$20Won — open this pick on its own pageNov 26, 2025, EST+104.1%+$20.82
Spread: Oilers (-1.5)backed Stars · on Polymarket (opens in a new tab)68c$50Won — open this pick on its own pageNov 26, 2025, EST+47.1%+$23.53
Red Wings vs. Devilsbacked Devils · on Polymarket (opens in a new tab)55c$60Won — open this pick on its own pageNov 24, 2025, EST+81.8%+$49.09
Rangers vs. Golden Knightsbacked Golden Knights · on Polymarket (opens in a new tab)57c$25Won — open this pick on its own pageNov 19, 2025, EST+75.4%+$18.86
Rangers vs. Golden Knights: O/U 6.5backed Under · on Polymarket (opens in a new tab)58c$25Won — open this pick on its own pageNov 19, 2025, EST+72.4%+$18.1
Islanders vs. Avalanchebacked Avalanche · on Polymarket (opens in a new tab)49c$50Won — open this pick on its own pageNov 17, 2025, EST+104.1%+$52.04
All 18 picks, newest first.
College Football Inactivelast resolved Dec 7, 2025, EST955.6%5 W · 4 L+0.3wins+0.03per pick52cpaid+6.8%equal weight51+0.01 edge/pick
College Football — the 9 picks behind this row

Every qualified pick this wallet made in College Football, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

UFC Inactivelast resolved Dec 7, 2025, EST862.5%5 W · 3 L+0.1wins+0.01per pick61cpaid+8.7%equal weight500.00 edge/pick
UFC — the 8 picks behind this row

Every qualified pick this wallet made in UFC, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

Ncaa Basketball Inactivelast resolved Dec 4, 2025, EST10%0 W · 1 L-0.6wins-0.58per pick58cpaid-100%equal weight48-0.02 edge/pick
Ncaa Basketball — the 1 pick behind this row

Every qualified pick this wallet made in Ncaa Basketball, newest first — these are the picks the row above was computed from, not a sample of them. P/L held is what each pick would have been worth held to resolution, not cash this wallet withdrew. Days are shown in US/Eastern, the zone Polymarket writes its markets in. A market name opens TailMyPicks’s own post-mortem of that market — who else was on it, and what they paid — and a result opens that one pick on a page of its own, which is the link to send somebody.

MarketEntrySizeResultResolvedReturnP/L held
Louisville Cardinals vs. Arkansas Razorbacksbacked Louisville Cardinals · on Polymarket (opens in a new tab)58c$25Lost — open this pick on its own pageDec 4, 2025, EST-100%-$25
All 1 picks, newest first.

vs expected is how many more (or fewer) Picks this wallet won than the prices it paid implied it would. It is the column that tells a real edge apart from a record bought by backing favourites. Realizable edge is what that comes to per Pick for somebody copying the wallet, after the cost of getting in behind it. Avg entry is the average price it paid, so a strong record built on heavy favourites shows as one. ROI per pick counts every Pick equally rather than by size, which is how a record earned across many Picks is told apart from one carried by a few large ones. Days are shown in US/Eastern, the zone Polymarket writes its markets in — an American night game settles after midnight UTC, so any other zone would name the day after the one it was played on. Inactive means nothing has resolved in that Category recently. The score is kept and the wallet stays reachable here; it only leaves the default leaderboard.

Not every trade counts. A Pick has to clear four thresholds to be scored.

TailMyPicks scores a wallet on what it can actually be judged on: positions held to resolution, in markets with enough volume to be real, at prices where being right was not already priced in.

  • The market traded at least $500.
  • The entry price was between 0.00 and 0.80 — a near-certainty is not a call.
  • The position was at least $10 — dust is not a position.
  • The market has resolved, so there is a right answer to grade against.

Thresholds behind these numbers: set by an operator decision, not measured.