TailMyPicks

Check any Polymarket wallet’s real record.

Tennis · resolved market

Centurion 2: Harold Mayot vs Philip Henning

Rebuilt .

What this market resolved to

Winning outcome
Philip Henningof Harold Mayot, Philip Henning
Resolved
US/Eastern, the zone Polymarket writes its markets in
Scored in
Tennisevery record on this page is that Category’s
Volume Polymarket published
$130,130
Volume TailMyPicks’s own read summed
$131,208

Both are shown because TailMyPicks only trusts a market it can reconcile: it reads every trade itself and compares its own total against the venue’s before scoring anything. The threshold below was applied to $130,130 the venue’s figure.

Every figure here describes what TailMyPicks scored — positions held to resolution in markets that cleared the thresholds below. It is not a Polymarket account balance, and open positions are not counted anywhere on this site.

Who was on this market

All 100 wallets that hold a qualified pick on this market, biggest position first. Ordered by position size rather than by score, because this is a post-mortem of one market — a strong wallet’s small pick does not belong above a large committed one. Each wallet’s record in Tennis is on its own row, so one correct call here is not mistaken for a track record.

On this marketThis wallet’s whole record in Tennis
WalletEntryPositionResultP/L heldQualified picksWin ratevs expectedRealizable edgeAvg entryROI per pickTail Score
0x3695…c66cbacked Harold Mayot22c13,242$2,939 inLost — open this pick on its own page-$2,939.266549.2%32 W · 33 L+4.0wins+0.06per pick43cpaid+11.9%equal weight55+0.04 edge/pick
0x3663…8950backed Philip Henning46c6,206$2,855 inWon — open this pick on its own page+$3,351.3339243.4%170 W · 222 L+21.0wins+0.05per pick38cpaid+11%equal weight56+0.05 edge/pick
0x5eb1…96e1backed Harold Mayot11c5,729$652 inLost — open this pick on its own page-$651.883321.2%7 W · 26 L-4.7wins-0.14per pick36cpaid-37.9%equal weight41-0.08 edge/pick
0x6982…a165backed Philip Henning79c4,614$3,650 inWon — open this pick on its own page+$963.8862956.9%358 W · 271 L+0.8wins0.00per pick57cpaid+2.5%equal weight500.00 edge/pick
0xfe78…0319backed Harold Mayot4c4,454$195 inLost — open this pick on its own page-$194.568,82836.1%3,190 W · 5,638 L-193.3wins-0.02per pick38cpaid-27.2%equal weight48-0.02 edge/pick
0xc181…0992backed Harold Mayot55c3,454$1,900 inLost — open this pick on its own page-$1,90065651.8%340 W · 316 L-0.2wins0.00per pick52cpaid-1.6%equal weight500.00 edge/pick
0x84ad…bfb7backed Philip Henning55c2,264$1,236 inWon — open this pick on its own page+$1,028.174,53367.7%3,071 W · 1,462 L+306.6wins+0.07per pick61cpaid+5.2%equal weight57+0.07 edge/pick
0x2005…75eabacked Philip Henning77c1,917$1,473 inWon — open this pick on its own page+$443.911,43543.4%4,959 W · 6,476 L+17.8wins0.00per pick43cpaid-20.1%equal weight500.00 edge/pick
0x32b4…8b21backed Philip Henning59c1,808$1,074 inWon — open this pick on its own page+$733.853,60542.4%1,530 W · 2,075 L-43.2wins-0.01per pick44cpaid-16.7%equal weight49-0.01 edge/pick
0xccd8…f4debacked Philip Henning47c1,710$800 inWon — open this pick on its own page+$909.661,47535.2%519 W · 956 L-14.1wins-0.01per pick36cpaid-4.4%equal weight49-0.01 edge/pick
0xdb83…1e50backed Harold Mayot30c1,667$494 inLost — open this pick on its own page-$494.363,66145.2%1,654 W · 2,007 L-8.7wins0.00per pick45cpaid-12.2%equal weight500.00 edge/pick
0xe8e1…49ddbacked Harold Mayot5c1,531$81 inLost — open this pick on its own page-$80.6966834.3%229 W · 439 L-43.2wins-0.06per pick41cpaid-40.6%equal weight43-0.06 edge/pick
0x36d8…c7c7backed Philip Henning78c1,400$1,090 inWon — open this pick on its own page+$310.121,22841.1%505 W · 723 L+1.8wins0.00per pick41cpaid-7.1%equal weight500.00 edge/pick
0xfcf1…99d3backed Harold Mayot15c1,352$200 inLost — open this pick on its own page-$20038652.3%202 W · 184 L-2.8wins-0.01per pick53cpaid-5.3%equal weight49-0.01 edge/pick
0x2374…a426backed Harold Mayot15c1,333$200 inLost — open this pick on its own page-$20087337.1%324 W · 549 L-3.4wins0.00per pick38cpaid-2.1%equal weight500.00 edge/pick
0x0c99…0c88backed Harold Mayot3c1,000$30 inLost — open this pick on its own page-$309,28644.3%4,110 W · 5,176 L-245.7wins-0.03per pick47cpaid-12.1%equal weight47-0.03 edge/pick
0x7d9a…05e6backed Harold Mayot15c822.1$126 inLost — open this pick on its own page-$125.842,08544.5%928 W · 1,157 L-51.6wins-0.02per pick47cpaid-22.7%equal weight47-0.02 edge/pick
0xe8c4…395dbacked Philip Henning80c766$613 inWon — open this pick on its own page+$153.21,03150.3%519 W · 512 L+40.1wins+0.04per pick46cpaid+8.9%equal weight54+0.04 edge/pick
0xb4d0…a1c5backed Harold Mayot34c666.55$230 inLost — open this pick on its own page-$229.911,56640%627 W · 939 L-32.0wins-0.02per pick42cpaid-8.5%equal weight48-0.02 edge/pick
0x99d7…6435backed Philip Henning79c600$474 inWon — open this pick on its own page+$1261,14853%608 W · 540 L+25.5wins+0.02per pick51cpaid+22.6%equal weight52+0.02 edge/pick
0x7547…d158backed Philip Henning46c600$276 inWon — open this pick on its own page+$324.477,04939.7%2,795 W · 4,254 L-20.5wins0.00per pick40cpaid+0.5%equal weight500.00 edge/pick
0x5e30…acbfbacked Philip Henning44c597$263 inWon — open this pick on its own page+$334.327,72447.8%3,691 W · 4,033 L+41.2wins+0.01per pick47cpaid+1.2%equal weight51+0.01 edge/pick
0xf9b5…1212backed Harold Mayot20c533.61$109 inLost — open this pick on its own page-$10930226.8%81 W · 221 L-6.5wins-0.02per pick29cpaid-13.7%equal weight48-0.02 edge/pick
0x74bd…d371backed Harold Mayot12c513.36$64 inLost — open this pick on its own page-$64.0942125.7%108 W · 313 L-0.4wins0.00per pick26cpaid+9.3%equal weight500.00 edge/pick
0x80d8…b703backed Philip Henning70c500$350 inWon — open this pick on its own page+$150.414,76547%2,238 W · 2,527 L-82.2wins-0.02per pick49cpaid-9.4%equal weight48-0.02 edge/pick
0x98db…dd17backed Harold Mayot6c473.82$28 inLost — open this pick on its own page-$28.15,35056.4%3,016 W · 2,334 L+228.4wins+0.04per pick52cpaid-6.4%equal weight55+0.04 edge/pick
0xc4c9…9ee4backed Harold Mayot15c460.47$69 inLost — open this pick on its own page-$69.0735730.5%109 W · 248 L-11.4wins-0.03per pick34cpaid-12.7%equal weight47-0.03 edge/pick
0x0d2d…7ff5backed Harold Mayot19c451.89$87 inLost — open this pick on its own page-$87.238,50542.6%3,619 W · 4,886 L-166.3wins-0.02per pick45cpaid-21.3%equal weight48-0.02 edge/pick
0x1e72…d0b9backed Harold Mayot20c446.11$89 inLost — open this pick on its own page-$89.4470729.1%206 W · 501 L+0.8wins0.00per pick29cpaid-6.3%equal weight500.00 edge/pick
0xd4bc…b19dbacked Harold Mayot22c445.45$98 inLost — open this pick on its own page-$988543.5%37 W · 48 L-4.0wins-0.05per pick48cpaid-12.9%equal weight46-0.04 edge/pick
0xadfb…c2efbacked Philip Henning45c439.59$199 inWon — open this pick on its own page+$241.063,25648.2%1,570 W · 1,686 L-53.4wins-0.02per pick50cpaid-4.2%equal weight48-0.02 edge/pick
0xc718…64a8backed Harold Mayot16c424.89$68 inLost — open this pick on its own page-$67.9391755.5%509 W · 408 L+2.7wins0.00per pick55cpaid-6.5%equal weight500.00 edge/pick
0xd218…b5c9backed Harold Mayot3c407.53$14 inLost — open this pick on its own page-$14.066,72036.9%2,479 W · 4,241 L-95.8wins-0.01per pick38cpaid-20.5%equal weight48-0.01 edge/pick
0xeea3…a6a2backed Harold Mayot15c404.41$61 inLost — open this pick on its own page-$61.343,06857.3%1,757 W · 1,311 L+173.3wins+0.06per pick52cpaid-3.6%equal weight56+0.06 edge/pick
0xd9e0…05f2backed Harold Mayot18c380.82$70 inLost — open this pick on its own page-$70.132,76647.7%1,318 W · 1,448 L+44.2wins+0.02per pick46cpaid-18.4%equal weight52+0.02 edge/pick
0x154e…fbdebacked Harold Mayot9c369.84$33 inLost — open this pick on its own page-$33.293016.7%5 W · 25 L-3.4wins-0.11per pick28cpaid-27.6%equal weight43-0.06 edge/pick
0xc98f…a13fbacked Harold Mayot3c365$11 inLost — open this pick on its own page-$11.221317.4%37 W · 176 L-2.1wins-0.01per pick18cpaid+4.8%equal weight49-0.01 edge/pick
0x0ade…ed94backed Harold Mayot54c363.64$197 inLost — open this pick on its own page-$197.281,45854%787 W · 671 L-33.0wins-0.02per pick56cpaid+64.6%equal weight48-0.02 edge/pick
0xdc81…e889backed Philip Henning46c344.54$158 inWon — open this pick on its own page+$186.0517942.5%76 W · 103 L-0.4wins0.00per pick43cpaid+1.1%equal weight500.00 edge/pick
0x58c5…17e8backed Harold Mayot17c308.92$52 inLost — open this pick on its own page-$52.479638.5%37 W · 59 L-0.4wins0.00per pick39cpaid-7.5%equal weight500.00 edge/pick
0x0612…559abacked Philip Henning78c261$204 inWon — open this pick on its own page+$57.4238952.2%203 W · 186 L+9.0wins+0.02per pick50cpaid+7.1%equal weight52+0.02 edge/pick
0x1e3b…e232backed Harold Mayot54c250$135 inLost — open this pick on its own page-$1353,90150.1%1,953 W · 1,948 L-13.2wins0.00per pick50cpaid-2.2%equal weight500.00 edge/pick
0x4def…06e6backed Harold Mayot5c250$13 inLost — open this pick on its own page-$12.55117.6%9 W · 42 L-0.8wins-0.02per pick19cpaid-26.1%equal weight49-0.01 edge/pick
0x54d1…13f4backed Philip Henning80c244.95$196 inWon — open this pick on its own page+$48.9973748%354 W · 383 L-1.2wins0.00per pick48cpaid-1%equal weight500.00 edge/pick
0x5929…4684backed Philip Henning76c237.45$181 inWon — open this pick on its own page+$56.573,67754.8%2,015 W · 1,662 L+107.4wins+0.03per pick52cpaid-1.5%equal weight53+0.03 edge/pick
0x6a00…9158backed Philip Henning45c222.2$100 inWon — open this pick on its own page+$122.2178840.6%320 W · 468 L-7.7wins-0.01per pick42cpaid-8.7%equal weight49-0.01 edge/pick
0x557e…d185backed Harold Mayot54c200$108 inLost — open this pick on its own page-$1084233.3%14 W · 28 L+0.4wins+0.01per pick32cpaid-24.3%equal weight51+0.01 edge/pick
0x5b63…11a4backed Harold Mayot16c197.95$32 inLost — open this pick on its own page-$32.454,93441.5%2,048 W · 2,886 L-77.0wins-0.02per pick43cpaid-15.3%equal weight48-0.02 edge/pick
0x8ce7…3150backed Philip Henning46c193$89 inWon — open this pick on its own page+$104.2239149.1%192 W · 199 L+14.0wins+0.04per pick46cpaid+9.7%equal weight54+0.03 edge/pick
0xb47b…c6b1backed Harold Mayot55c181.82$100 inLost — open this pick on its own page-$10019052.6%100 W · 90 L+2.6wins+0.01per pick51cpaid+3.9%equal weight51+0.01 edge/pick
0xfbad…4f53backed Harold Mayot12c173.61$20 inLost — open this pick on its own page-$2035444.6%158 W · 196 L+8.4wins+0.02per pick42cpaid-5.4%equal weight52+0.02 edge/pick
0x908a…ad16backed Philip Henning79c150$119 inWon — open this pick on its own page+$31.51,65550.1%829 W · 826 L+30.2wins+0.02per pick48cpaid-7.3%equal weight52+0.02 edge/pick
0x5bdd…8fd9backed Harold Mayot7c135$10 inLost — open this pick on its own page-$105145.1%23 W · 28 L-3.9wins-0.08per pick53cpaid-17.5%equal weight44-0.05 edge/pick
0xa6b6…99c0backed Philip Henning75c133.33$100 inWon — open this pick on its own page+$33.331650%8 W · 8 L0.0wins0.00per pick50cpaid-20.6%equal weight500.00 edge/pick
0xe1d4…a31ebacked Harold Mayot22c133.12$29 inLost — open this pick on its own page-$28.792433.3%8 W · 16 L-2.4wins-0.10per pick43cpaid-26.4%equal weight45-0.05 edge/pick
0xafaf…1635backed Harold Mayot13c120.9$16 inLost — open this pick on its own page-$15.962,04946.8%958 W · 1,091 L+19.0wins+0.01per pick46cpaid-20.5%equal weight51+0.01 edge/pick
0x8dd8…9a1cbacked Philip Henning78c120$94 inWon — open this pick on its own page+$26.458048.4%281 W · 299 L+16.3wins+0.03per pick46cpaid-3.7%equal weight53+0.03 edge/pick
0x1f64…3633backed Philip Henning45c119.09$54 inWon — open this pick on its own page+$65.599249.4%490 W · 502 L-9.5wins-0.01per pick50cpaid-1.4%equal weight49-0.01 edge/pick
0x24a1…32f2backed Philip Henning73c106.67$78 inWon — open this pick on its own page+$28.815261.8%94 W · 58 L+12.6wins+0.08per pick54cpaid+13.2%equal weight58+0.07 edge/pick
0x6683…f5f4backed Philip Henning79c106$84 inWon — open this pick on its own page+$22.2610658.5%62 W · 44 L+6.1wins+0.06per pick53cpaid+11.6%equal weight55+0.05 edge/pick
0xc98b…c6f3backed Harold Mayot37c100.43$37 inLost — open this pick on its own page-$37.1611155%61 W · 50 L+0.2wins0.00per pick55cpaid+3.3%equal weight500.00 edge/pick
0x14e7…a32cbacked Harold Mayot21c100$21 inLost — open this pick on its own page-$211,34949.8%672 W · 677 L-6.5wins0.00per pick50cpaid-7.2%equal weight490.00 edge/pick
0x6f06…3e6ebacked Harold Mayot21c96.86$20 inLost — open this pick on its own page-$20.215617.9%10 W · 46 L-5.0wins-0.09per pick27cpaid-40.4%equal weight43-0.06 edge/pick
0x5ec5…4168backed Harold Mayot56c71.66$40 inLost — open this pick on its own page-$409666.7%64 W · 32 L+1.5wins+0.02per pick65cpaid+4.2%equal weight51+0.01 edge/pick
0xa42f…5f5abacked Harold Mayot25c68.41$17 inLost — open this pick on its own page-$16.831,01039.2%396 W · 614 L-23.0wins-0.02per pick41cpaid-25.1%equal weight48-0.02 edge/pick
0xe85c…88a5backed Philip Henning77c64.94$50 inWon — open this pick on its own page+$14.94540%2 W · 3 L-1.4wins-0.28per pick68cpaid-44.6%equal weight45-0.05 edge/pick
0xe824…65b4backed Philip Henning77c62$48 inWon — open this pick on its own page+$1416050.6%81 W · 79 L-5.0wins-0.03per pick54cpaid-1%equal weight47-0.03 edge/pick
0x6a20…d606backed Philip Henning79c62$49 inWon — open this pick on its own page+$13.0292674.6%691 W · 235 L+1.7wins0.00per pick74cpaid+0.1%equal weight500.00 edge/pick
0xc8cd…ba81backed Harold Mayot25c60$15 inLost — open this pick on its own page-$1547431.9%151 W · 323 L-21.1wins-0.04per pick36cpaid-8.3%equal weight45-0.04 edge/pick
0x72a0…9bc4backed Philip Henning75c57.9$43 inWon — open this pick on its own page+$14.4347274.4%351 W · 121 L+5.5wins+0.01per pick73cpaid+1.4%equal weight51+0.01 edge/pick
0x2077…8161backed Philip Henning45c54.34$24 inWon — open this pick on its own page+$29.891,02157.8%590 W · 431 L-13.2wins-0.01per pick59cpaid-3.6%equal weight49-0.01 edge/pick
0xf7f0…912cbacked Harold Mayot55c54.34$30 inLost — open this pick on its own page-$29.8947854.8%262 W · 216 L+25.6wins+0.05per pick49cpaid+23.4%equal weight56+0.05 edge/pick
0x0862…dc29backed Harold Mayot34c51$17 inLost — open this pick on its own page-$17.4551339.4%202 W · 311 L-14.8wins-0.03per pick42cpaid-12.4%equal weight47-0.03 edge/pick
0x8f14…ca5abacked Philip Henning79c50.38$40 inWon — open this pick on its own page+$10.7330544.3%135 W · 170 L-2.7wins-0.01per pick45cpaid-11.2%equal weight49-0.01 edge/pick
0xcee6…0a45backed Harold Mayot54c50$27 inLost — open this pick on its own page-$2749151.7%254 W · 237 L-4.5wins-0.01per pick53cpaid-0.7%equal weight49-0.01 edge/pick
0x64e8…7819backed Philip Henning45c50$23 inWon — open this pick on its own page+$27.51,88235.5%669 W · 1,213 L+26.8wins+0.01per pick34cpaid+4.8%equal weight52+0.01 edge/pick
0x6112…0827backed Philip Henning46c49.22$23 inWon — open this pick on its own page+$26.58742.9%3 W · 4 L+0.6wins+0.09per pick34cpaid+11.4%equal weight52+0.02 edge/pick
0x3c32…7156backed Philip Henning80c49$39 inWon — open this pick on its own page+$9.881255.3%449 W · 363 L+4.6wins+0.01per pick55cpaid+0.4%equal weight51+0.01 edge/pick
0x5572…f01ebacked Harold Mayot54c48.49$26 inLost — open this pick on its own page-$26.1857953.7%311 W · 268 L+19.4wins+0.03per pick50cpaid-11%equal weight54+0.03 edge/pick
0x505f…645ebacked Philip Henning80c45$36 inWon — open this pick on its own page+$9.041,62652.7%857 W · 769 L+13.7wins+0.01per pick52cpaid-6.9%equal weight51+0.01 edge/pick
0x1cdd…e595backed Harold Mayot47c43.04$20 inLost — open this pick on its own page-$20.111,87016%299 W · 1,571 L-314.3wins-0.17per pick33cpaid-65.6%equal weight32-0.17 edge/pick
0xcf08…12a3backed Philip Henning80c37.5$30 inWon — open this pick on its own page+$7.523551.9%122 W · 113 L-3.9wins-0.02per pick54cpaid-2.5%equal weight48-0.02 edge/pick
0x18c6…8e8fbacked Philip Henning80c37.5$30 inWon — open this pick on its own page+$7.510755.1%59 W · 48 L+1.1wins+0.01per pick54cpaid+5.1%equal weight51+0.01 edge/pick
0xb036…321abacked Harold Mayot54c37.04$20 inLost — open this pick on its own page-$201241.7%5 W · 7 L-2.0wins-0.16per pick58cpaid-29.2%equal weight44-0.05 edge/pick
0xdb90…c03dbacked Harold Mayot55c36.27$20 inLost — open this pick on its own page-$19.955543.6%24 W · 31 L-3.1wins-0.06per pick49cpaid-16.6%equal weight46-0.04 edge/pick
0x9081…8a6ebacked Philip Henning73c27.39$20 inWon — open this pick on its own page+$7.441768.1%284 W · 133 L-21.4wins-0.05per pick73cpaid-6.7%equal weight45-0.05 edge/pick
0xc08c…4b12backed Harold Mayot55c27.27$15 inLost — open this pick on its own page-$157847.4%37 W · 41 L+2.7wins+0.03per pick44cpaid+18.3%equal weight53+0.03 edge/pick
0x9c76…c926backed Philip Henning45c27.27$12 inWon — open this pick on its own page+$154,07639.7%1,620 W · 2,456 L+93.7wins+0.02per pick37cpaid+7.2%equal weight53+0.02 edge/pick
0xac50…d728backed Harold Mayot55c27.27$15 inLost — open this pick on its own page-$1528343.8%124 W · 159 L-10.6wins-0.04per pick48cpaid-8.5%equal weight46-0.03 edge/pick
0x5404…5e58backed Harold Mayot53c27.16$14 inLost — open this pick on its own page-$14.3968430%205 W · 479 L+7.2wins+0.01per pick29cpaid-2%equal weight51+0.01 edge/pick
0x9565…ec9abacked Philip Henning46c26.63$12 inWon — open this pick on its own page+$14.3818038.3%69 W · 111 L+3.5wins+0.02per pick36cpaid-3.9%equal weight52+0.02 edge/pick
0x7d0e…4f01backed Philip Henning45c22.76$10 inWon — open this pick on its own page+$12.521,25044.7%559 W · 691 L-6.6wins-0.01per pick45cpaid-1.2%equal weight49-0.01 edge/pick
0x9ea5…04f6backed Harold Mayot55c21.82$12 inLost — open this pick on its own page-$123842.1%16 W · 22 L-3.0wins-0.08per pick50cpaid-19.8%equal weight45-0.05 edge/pick
0x65ec…a2f9backed Harold Mayot55c21.82$12 inLost — open this pick on its own page-$1245053.3%240 W · 210 L-4.8wins-0.01per pick54cpaid-1.5%equal weight49-0.01 edge/pick
0xdbdd…a5debacked Philip Henning75c21.33$16 inWon — open this pick on its own page+$5.336,43954.4%3,502 W · 2,937 L+285.2wins+0.04per pick50cpaid+26.3%equal weight55+0.04 edge/pick
0xc56b…772abacked Harold Mayot55c18.34$10 inLost — open this pick on its own page-$10.097744.2%34 W · 43 L-13.4wins-0.17per pick62cpaid-26%equal weight35-0.13 edge/pick
0xbafb…3031backed Philip Henning80c15.14$12 inWon — open this pick on its own page+$3.0333673.2%246 W · 90 L-15.2wins-0.05per pick78cpaid-5.9%equal weight45-0.04 edge/pick
0xf9ad…5097backed Philip Henning79c15$12 inWon — open this pick on its own page+$3.1526868.3%183 W · 85 L+13.1wins+0.05per pick63cpaid+4.1%equal weight55+0.04 edge/pick
0x1f65…38bfbacked Philip Henning78c14$11 inWon — open this pick on its own page+$3.0813466.4%89 W · 45 L+6.3wins+0.05per pick62cpaid+3.9%equal weight54+0.04 edge/pick
0x7885…1173backed Philip Henning79c12.69$10 inWon — open this pick on its own page+$2.6516654.8%91 W · 75 L+5.1wins+0.03per pick52cpaid-9.7%equal weight53+0.03 edge/pick

Entry is the average price this wallet paid on the side it backed, so being right at 20c is distinguishable from being right at 95c. Position is what it was left holding in shares, with what it spent underneath. Result opens that one pick on a page of its own, which is the link to send somebody. P/L held is what that position would have been worth held to resolution — not cash the wallet withdrew, because selling early is still a correct forecast. The seven columns on the right describe the wallet’s whole record in Tennis and say nothing about this market.

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.