Tennis · resolved market
Ostrava: Luka Pavlovic vs Vitaliy Sachko
https://tailmypicks.com/m/0x8ede68cac37b66c2db63d3e6d0c57970de68c69ad9c18bdcc402da4aaf0498ce
Rebuilt .
What this market resolved to
- Winning outcome
- Vitaliy Sachkoof Luka Pavlovic, Vitaliy Sachko
- Resolved
- US/Eastern, the zone Polymarket writes its markets in
- Scored in
- Tennisevery record on this page is that Category’s
- Volume Polymarket published
- $63,536
- Volume TailMyPicks’s own read summed
- $66,138
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 $63,536 — 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 77 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 market | This wallet’s whole record in Tennis | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wallet | Entry | Position | Result | P/L held | Qualified picks | Win rate | vs expected | Realizable edge | Avg entry | ROI per pick | Tail Score |
| 0x507e…beaebacked Luka Pavlovic | 61c | 14,730$8,943 in | Lost — open this pick on its own page | -$8,943.4 | 7,018 | 43.2%3,031 W · 3,987 L | +124.9wins | +0.02per pick | 41cpaid | -9.8%equal weight | 52+0.02 edge/pick |
| 0x664a…fc5fbacked Vitaliy Sachko | 23c | 6,404$1,461 in | Won — open this pick on its own page | +$4,943.13 | 621 | 40.7%253 W · 368 L | -6.7wins | -0.01per pick | 42cpaid | -7.7%equal weight | 49-0.01 edge/pick |
| 0xde9f…d43cbacked Vitaliy Sachko | 49c | 4,188$2,042 in | Won — open this pick on its own page | +$2,146.37 | 6,599 | 50.7%3,343 W · 3,256 L | +259.7wins | +0.04per pick | 47cpaid | -4.9%equal weight | 54+0.04 edge/pick |
| 0x4698…d7a5backed Vitaliy Sachko | 75c | 3,335$2,500 in | Won — open this pick on its own page | +$834.73 | 536 | 55.4%297 W · 239 L | -28.6wins | -0.05per pick | 61cpaid | -12.2%equal weight | 44-0.05 edge/pick |
| 0x86fb…03d4backed Luka Pavlovic | 54c | 3,006$1,631 in | Lost — open this pick on its own page | -$1,630.66 | 853 | 48.7%415 W · 438 L | +6.5wins | +0.01per pick | 48cpaid | -7.5%equal weight | 51+0.01 edge/pick |
| 0x2005…75eabacked Luka Pavlovic | 49c | 2,770$1,367 in | Lost — open this pick on its own page | -$1,367.49 | 11,435 | 43.4%4,959 W · 6,476 L | +17.8wins | 0.00per pick | 43cpaid | -20.1%equal weight | 500.00 edge/pick |
| 0x188e…70d8backed Vitaliy Sachko | 58c | 2,477$1,436 in | Won — open this pick on its own page | +$1,040.47 | 8 | 37.5%3 W · 5 L | -1.2wins | -0.16per pick | 53cpaid | -28.5%equal weight | 46-0.04 edge/pick |
| 0x42c9…9623backed Vitaliy Sachko | 54c | 2,447$1,321 in | Won — open this pick on its own page | +$1,125.8 | 4,703 | 49.4%2,323 W · 2,380 L | +166.5wins | +0.04per pick | 46cpaid | -3.7%equal weight | 54+0.04 edge/pick |
| 0x6814…a9e7backed Vitaliy Sachko | 41c | 1,740$708 in | Won — open this pick on its own page | +$1,032.37 | 3,072 | 44.9%1,378 W · 1,694 L | -30.9wins | -0.01per pick | 46cpaid | -23%equal weight | 49-0.01 edge/pick |
| 0x058e…a2acbacked Vitaliy Sachko | 57c | 1,688$954 in | Won — open this pick on its own page | +$734.38 | 328 | 51.8%170 W · 158 L | +1.4wins | 0.00per pick | 51cpaid | +1%equal weight | 500.00 edge/pick |
| 0xb4d2…ce99backed Vitaliy Sachko | 43c | 1,366$587 in | Won — open this pick on its own page | +$779.1 | 4,921 | 38.7%1,905 W · 3,016 L | -20.0wins | 0.00per pick | 39cpaid | -7.5%equal weight | 500.00 edge/pick |
| 0xac83…239cbacked Luka Pavlovic | 58c | 1,086$630 in | Lost — open this pick on its own page | -$629.71 | 57 | 42.1%24 W · 33 L | -3.4wins | -0.06per pick | 48cpaid | -19.5%equal weight | 45-0.04 edge/pick |
| 0x94d4…d869backed Vitaliy Sachko | 42c | 1,062$446 in | Won — open this pick on its own page | +$615.8 | 102 | 46.1%47 W · 55 L | +10.3wins | +0.10per pick | 36cpaid | +51.8%equal weight | 59+0.08 edge/pick |
| 0x98db…dd17backed Vitaliy Sachko | 74c | 1,037$772 in | Won — open this pick on its own page | +$264.39 | 5,350 | 56.4%3,016 W · 2,334 L | +228.4wins | +0.04per pick | 52cpaid | -6.4%equal weight | 55+0.04 edge/pick |
| 0xdbdd…a5debacked Luka Pavlovic | 45c | 991.14$450 in | Lost — open this pick on its own page | -$450.01 | 6,439 | 54.4%3,502 W · 2,937 L | +285.2wins | +0.04per pick | 50cpaid | +26.3%equal weight | 55+0.04 edge/pick |
| 0x40a2…844fbacked Luka Pavlovic | 42c | 923.11$388 in | Lost — open this pick on its own page | -$387.71 | 5 | 60%3 W · 2 L | 0.0wins | 0.00per pick | 60cpaid | -9.4%equal weight | 500.00 edge/pick |
| 0x3982…2befbacked Luka Pavlovic | 53c | 629.04$335 in | Lost — open this pick on its own page | -$335 | 603 | 55.4%334 W · 269 L | +19.8wins | +0.03per pick | 52cpaid | -3%equal weight | 53+0.03 edge/pick |
| 0x7c7d…423fbacked Vitaliy Sachko | 50c | 611.46$304 in | Won — open this pick on its own page | +$307.66 | 135 | 45.2%61 W · 74 L | +8.2wins | +0.06per pick | 39cpaid | +19.5%equal weight | 56+0.05 edge/pick |
| 0x0149…2f04backed Vitaliy Sachko | 75c | 600$450 in | Won — open this pick on its own page | +$150 | 22 | 86.4%19 W · 3 L | +2.7wins | +0.12per pick | 74cpaid | +16.3%equal weight | 56+0.06 edge/pick |
| 0xa1a9…e22ebacked Luka Pavlovic | 42c | 574.79$241 in | Lost — open this pick on its own page | -$241.41 | 1,284 | 39.2%503 W · 781 L | -12.2wins | -0.01per pick | 40cpaid | -3.8%equal weight | 49-0.01 edge/pick |
| 0x5b6b…ec86backed Vitaliy Sachko | 18c | 555.56$100 in | Won — open this pick on its own page | +$455.56 | 1,062 | 31.8%338 W · 724 L | -27.2wins | -0.03per pick | 34cpaid | -9.3%equal weight | 47-0.02 edge/pick |
| 0x6684…95d1backed Vitaliy Sachko | 50c | 500$248 in | Won — open this pick on its own page | +$252 | 252 | 57.9%146 W · 106 L | +1.8wins | +0.01per pick | 57cpaid | +5.1%equal weight | 51+0.01 edge/pick |
| 0xfe78…0319backed Vitaliy Sachko | 46c | 473.82$218 in | Won — open this pick on its own page | +$255.9 | 8,828 | 36.1%3,190 W · 5,638 L | -193.3wins | -0.02per pick | 38cpaid | -27.2%equal weight | 48-0.02 edge/pick |
| 0x2e62…b22ebacked Vitaliy Sachko | 41c | 408.99$167 in | Won — open this pick on its own page | +$242.01 | 251 | 34.3%86 W · 165 L | -4.3wins | -0.02per pick | 36cpaid | -17.1%equal weight | 48-0.02 edge/pick |
| 0x0e1b…ecafbacked Luka Pavlovic | 51c | 391.53$200 in | Lost — open this pick on its own page | -$199.9 | 2,523 | 39.6%1,000 W · 1,523 L | -3.1wins | 0.00per pick | 40cpaid | -13.3%equal weight | 500.00 edge/pick |
| 0xceee…d39ebacked Luka Pavlovic | 42c | 372.96$157 in | Lost — open this pick on its own page | -$156.64 | 150 | 40%60 W · 90 L | -8.9wins | -0.06per pick | 46cpaid | -4.8%equal weight | 44-0.05 edge/pick |
| 0x948b…a188backed Luka Pavlovic | 55c | 364.25$200 in | Lost — open this pick on its own page | -$200 | 1,174 | 51.9%609 W · 565 L | +11.8wins | +0.01per pick | 51cpaid | -6.3%equal weight | 51+0.01 edge/pick |
| 0x8f88…ca51backed Luka Pavlovic | 33c | 300$99 in | Lost — open this pick on its own page | -$99 | 668 | 31.3%209 W · 459 L | -15.1wins | -0.02per pick | 34cpaid | -12.4%equal weight | 48-0.02 edge/pick |
| 0xd81f…6b75backed Luka Pavlovic | 42c | 291.48$122 in | Lost — open this pick on its own page | -$122.41 | 977 | 45.2%442 W · 535 L | -0.9wins | 0.00per pick | 45cpaid | -6.1%equal weight | 500.00 edge/pick |
| 0x51ad…5e56backed Luka Pavlovic | 49c | 257.17$125 in | Lost — open this pick on its own page | -$125.41 | 1,671 | 53%885 W · 786 L | +44.7wins | +0.03per pick | 50cpaid | -2.5%equal weight | 53+0.03 edge/pick |
| 0x5b63…11a4backed Vitaliy Sachko | 48c | 247.23$119 in | Won — open this pick on its own page | +$128.56 | 4,934 | 41.5%2,048 W · 2,886 L | -77.0wins | -0.02per pick | 43cpaid | -15.3%equal weight | 48-0.02 edge/pick |
| 0x31fd…e144backed Luka Pavlovic | 42c | 238.76$100 in | Lost — open this pick on its own page | -$100.28 | 248 | 56.9%141 W · 107 L | +16.1wins | +0.06per pick | 50cpaid | +11.4%equal weight | 57+0.06 edge/pick |
| 0xc75b…3ea7backed Luka Pavlovic | 55c | 237.38$130 in | Lost — open this pick on its own page | -$129.59 | 1,226 | 52%637 W · 589 L | +44.7wins | +0.04per pick | 48cpaid | +2.6%equal weight | 54+0.04 edge/pick |
| 0xc181…0992backed Vitaliy Sachko | 60c | 236$142 in | Won — open this pick on its own page | +$94.4 | 656 | 51.8%340 W · 316 L | -0.2wins | 0.00per pick | 52cpaid | -1.6%equal weight | 500.00 edge/pick |
| 0x6495…6cd7backed Luka Pavlovic | 40c | 216.9$87 in | Lost — open this pick on its own page | -$86.76 | 82 | 48.8%40 W · 42 L | -0.8wins | -0.01per pick | 50cpaid | -3%equal weight | 49-0.01 edge/pick |
| 0xfb85…8464backed Luka Pavlovic | 53c | 209.53$111 in | Lost — open this pick on its own page | -$111 | 721 | 32%231 W · 490 L | -17.8wins | -0.02per pick | 35cpaid | -19.3%equal weight | 47-0.02 edge/pick |
| 0x20ba…6c27backed Vitaliy Sachko | 74c | 209.46$155 in | Won — open this pick on its own page | +$54.46 | 1,186 | 62.8%745 W · 441 L | -16.1wins | -0.01per pick | 64cpaid | -3.6%equal weight | 49-0.01 edge/pick |
| 0xf32d…bbbbbacked Vitaliy Sachko | 51c | 209.4$106 in | Won — open this pick on its own page | +$103.4 | 289 | 52.6%152 W · 137 L | +3.8wins | +0.01per pick | 51cpaid | -1.1%equal weight | 51+0.01 edge/pick |
| 0x5d05…f729backed Vitaliy Sachko | 59c | 205.2$121 in | Won — open this pick on its own page | +$84.3 | 423 | 44.2%187 W · 236 L | -7.6wins | -0.02per pick | 46cpaid | -3.8%equal weight | 48-0.02 edge/pick |
| 0xae17…8e49backed Luka Pavlovic | 41c | 193.4$79 in | Lost — open this pick on its own page | -$79.29 | 3 | 33.3%1 W · 2 L | -0.2wins | -0.07per pick | 40cpaid | -14.5%equal weight | 49-0.01 edge/pick |
| 0x7ae4…fc82backed Luka Pavlovic | 41c | 193.39$79 in | Lost — open this pick on its own page | -$79.29 | 74 | 44.6%33 W · 41 L | -1.1wins | -0.01per pick | 46cpaid | -4.2%equal weight | 49-0.01 edge/pick |
| 0xa9f5…937fbacked Vitaliy Sachko | 51c | 151.99$78 in | Won — open this pick on its own page | +$74.48 | 4,602 | 48.3%2,223 W · 2,379 L | +34.4wins | +0.01per pick | 48cpaid | -8.6%equal weight | 51+0.01 edge/pick |
| 0x2843…0ac5backed Vitaliy Sachko | 78c | 128.21$100 in | Won — open this pick on its own page | +$28.21 | 231 | 59.3%137 W · 94 L | +1.4wins | +0.01per pick | 59cpaid | +12.9%equal weight | 51+0.01 edge/pick |
| 0x67b5…7276backed Vitaliy Sachko | 45c | 106.34$48 in | Won — open this pick on its own page | +$58.34 | 271 | 47.2%128 W · 143 L | +6.7wins | +0.02per pick | 45cpaid | +6.2%equal weight | 53+0.02 edge/pick |
| 0x775d…6bebbacked Vitaliy Sachko | 67c | 104$70 in | Won — open this pick on its own page | +$34.32 | 1,767 | 52.1%920 W · 847 L | -2.2wins | 0.00per pick | 52cpaid | -6.1%equal weight | 500.00 edge/pick |
| 0xcbef…0c11backed Vitaliy Sachko | 59c | 101.69$60 in | Won — open this pick on its own page | +$41.69 | 681 | 57.6%392 W · 289 L | -12.1wins | -0.02per pick | 59cpaid | -5.8%equal weight | 48-0.02 edge/pick |
| 0x703b…e371backed Luka Pavlovic | 58c | 101$59 in | Lost — open this pick on its own page | -$58.76 | 15 | 93.3%14 W · 1 L | +4.2wins | +0.28per pick | 65cpaid | +43.2%equal weight | 62+0.11 edge/pick |
| 0xe911…3d4ebacked Luka Pavlovic | 45c | 100$45 in | Lost — open this pick on its own page | -$45 | 4,426 | 51.8%2,291 W · 2,135 L | +136.7wins | +0.03per pick | 49cpaid | +0.4%equal weight | 53+0.03 edge/pick |
| 0x8e4a…f43dbacked Luka Pavlovic | 11c | 95.46$10 in | Lost — open this pick on its own page | -$10.25 | 130 | 33.8%44 W · 86 L | +4.6wins | +0.04per pick | 30cpaid | +10%equal weight | 53+0.03 edge/pick |
| 0x610b…36a3backed Vitaliy Sachko | 56c | 89.29$50 in | Won — open this pick on its own page | +$39.29 | 547 | 44.4%243 W · 304 L | -5.6wins | -0.01per pick | 45cpaid | -4.4%equal weight | 49-0.01 edge/pick |
| 0x6832…831fbacked Vitaliy Sachko | 74c | 88.43$66 in | Won — open this pick on its own page | +$22.74 | 292 | 41.8%122 W · 170 L | +0.3wins | 0.00per pick | 42cpaid | -14.2%equal weight | 500.00 edge/pick |
| 0xa509…ae46backed Vitaliy Sachko | 53c | 85.13$45 in | Won — open this pick on its own page | +$39.81 | 6,786 | 48.8%3,310 W · 3,476 L | +56.2wins | +0.01per pick | 48cpaid | -15.5%equal weight | 51+0.01 edge/pick |
| 0x9cef…5ea3backed Luka Pavlovic | 24c | 83.33$20 in | Lost — open this pick on its own page | -$20 | 21 | 42.9%9 W · 12 L | -2.3wins | -0.11per pick | 54cpaid | -28.5%equal weight | 44-0.05 edge/pick |
| 0xd218…b5c9backed Vitaliy Sachko | 42c | 75.88$32 in | Won — open this pick on its own page | +$44.15 | 6,720 | 36.9%2,479 W · 4,241 L | -95.8wins | -0.01per pick | 38cpaid | -20.5%equal weight | 48-0.01 edge/pick |
| 0x8ee9…1362backed Luka Pavlovic | 60c | 70$42 in | Lost — open this pick on its own page | -$42 | 725 | 42.6%309 W · 416 L | -20.9wins | -0.03per pick | 46cpaid | -11.2%equal weight | 47-0.03 edge/pick |
| 0x5929…4684backed Vitaliy Sachko | 64c | 65.79$42 in | Won — open this pick on its own page | +$23.4 | 3,677 | 54.8%2,015 W · 1,662 L | +107.4wins | +0.03per pick | 52cpaid | -1.5%equal weight | 53+0.03 edge/pick |
| 0x093b…4e14backed Luka Pavlovic | 42c | 60$25 in | Lost — open this pick on its own page | -$25.2 | 178 | 48.9%87 W · 91 L | +0.6wins | 0.00per pick | 49cpaid | +1.6%equal weight | 500.00 edge/pick |
| 0xf46b…c51dbacked Luka Pavlovic | 54c | 54.2$30 in | Lost — open this pick on its own page | -$29.53 | 630 | 52.4%330 W · 300 L | +12.5wins | +0.02per pick | 50cpaid | -0.7%equal weight | 52+0.02 edge/pick |
| 0xe02b…6432backed Vitaliy Sachko | 76c | 51.84$39 in | Won — open this pick on its own page | +$12.44 | 18 | 66.7%12 W · 6 L | +0.3wins | +0.02per pick | 65cpaid | -4.6%equal weight | 51+0.01 edge/pick |
| 0x9888…e6febacked Vitaliy Sachko | 48c | 50.38$24 in | Won — open this pick on its own page | +$26.4 | 2,447 | 45.9%1,123 W · 1,324 L | -12.9wins | -0.01per pick | 46cpaid | -5.7%equal weight | 49-0.01 edge/pick |
| 0x9158…ba55backed Luka Pavlovic | 42c | 50$21 in | Lost — open this pick on its own page | -$21 | 257 | 45.9%118 W · 139 L | +3.8wins | +0.01per pick | 44cpaid | +2.5%equal weight | 51+0.01 edge/pick |
| 0xc9e7…c067backed Vitaliy Sachko | 75c | 50$38 in | Won — open this pick on its own page | +$12.5 | 87 | 69%60 W · 27 L | +3.1wins | +0.04per pick | 65cpaid | +5.3%equal weight | 53+0.03 edge/pick |
| 0xf1ee…519cbacked Vitaliy Sachko | 64c | 50$32 in | Won — open this pick on its own page | +$18.17 | 553 | 60.4%334 W · 219 L | +32.7wins | +0.06per pick | 54cpaid | +2.5%equal weight | 56+0.06 edge/pick |
| 0x17f7…a181backed Vitaliy Sachko | 58c | 47.06$27 in | Won — open this pick on its own page | +$19.76 | 513 | 47%241 W · 272 L | +11.3wins | +0.02per pick | 45cpaid | +3.8%equal weight | 52+0.02 edge/pick |
| 0xc2be…af12backed Vitaliy Sachko | 43c | 45.68$20 in | Won — open this pick on its own page | +$25.95 | 2,032 | 46.9%952 W · 1,080 L | -12.4wins | -0.01per pick | 47cpaid | -7.2%equal weight | 49-0.01 edge/pick |
| 0x595c…3b03backed Luka Pavlovic | 42c | 43$18 in | Lost — open this pick on its own page | -$18.06 | 39 | 56.4%22 W · 17 L | -0.5wins | -0.01per pick | 58cpaid | -9.3%equal weight | 49-0.01 edge/pick |
| 0xee0a…36d8backed Vitaliy Sachko | 76c | 39.47$30 in | Won — open this pick on its own page | +$9.47 | 382 | 62.3%238 W · 144 L | -9.4wins | -0.02per pick | 65cpaid | -2.6%equal weight | 47-0.02 edge/pick |
| 0xbb8e…08c1backed Luka Pavlovic | 48c | 33$16 in | Lost — open this pick on its own page | -$15.84 | 2,118 | 55.9%1,185 W · 933 L | +40.1wins | +0.02per pick | 54cpaid | -5.6%equal weight | 52+0.02 edge/pick |
| 0x1e76…47fabacked Luka Pavlovic | 42c | 30$13 in | Lost — open this pick on its own page | -$12.6 | 107 | 51.4%55 W · 52 L | +5.2wins | +0.05per pick | 47cpaid | +12.4%equal weight | 54+0.04 edge/pick |
| 0x61af…aa01backed Vitaliy Sachko | 78c | 30$23 in | Won — open this pick on its own page | +$6.6 | 333 | 64.9%216 W · 117 L | -19.4wins | -0.06per pick | 71cpaid | -9.1%equal weight | 44-0.05 edge/pick |
| 0xfc7e…70ecbacked Vitaliy Sachko | 56c | 27.41$15 in | Won — open this pick on its own page | +$12.06 | 1,001 | 45.4%454 W · 547 L | +0.2wins | 0.00per pick | 45cpaid | +1.7%equal weight | 500.00 edge/pick |
| 0xbc09…f937backed Luka Pavlovic | 44c | 26.49$12 in | Lost — open this pick on its own page | -$11.65 | 55 | 43.6%24 W · 31 L | -0.2wins | 0.00per pick | 44cpaid | -3.4%equal weight | 500.00 edge/pick |
| 0x0182…301cbacked Vitaliy Sachko | 71c | 21.2$15 in | Won — open this pick on its own page | +$6.2 | 133 | 60.9%81 W · 52 L | +0.6wins | 0.00per pick | 60cpaid | -2.8%equal weight | 500.00 edge/pick |
| 0x9555…889abacked Luka Pavlovic | 60c | 20.43$12 in | Lost — open this pick on its own page | -$12.26 | 580 | 67.8%393 W · 187 L | +5.0wins | +0.01per pick | 67cpaid | +1.4%equal weight | 51+0.01 edge/pick |
| 0xbfd7…f0bfbacked Vitaliy Sachko | 64c | 20.05$13 in | Won — open this pick on its own page | +$7.22 | 7,816 | 50.6%3,958 W · 3,858 L | +95.4wins | +0.01per pick | 49cpaid | -4.6%equal weight | 51+0.01 edge/pick |
| 0xf97e…dff7backed Luka Pavlovic | 62c | 18.39$11 in | Lost — open this pick on its own page | -$11.4 | 4 | 75%3 W · 1 L | +0.8wins | +0.20per pick | 55cpaid | +46%equal weight | 53+0.03 edge/pick |
| 0x1621…572cbacked Vitaliy Sachko | 80c | 13.75$11 in | Won — open this pick on its own page | +$2.75 | 472 | 52.1%246 W · 226 L | +1.9wins | 0.00per pick | 52cpaid | +0.1%equal weight | 500.00 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.