TailMyPicks

Check any Polymarket wallet’s real record.

Tennis · resolved market

US Open: Jannik Sinner vs Carlos Alcaraz

Rebuilt .

What this market resolved to

Winning outcome
Alcarazof Sinner, Alcaraz
Resolved
US/Eastern, the zone Polymarket writes its markets in
Scored in
Tennisevery record on this page is that Category’s
Volume Polymarket published
$1,211,262
Volume TailMyPicks’s own read summed
$1,254,230

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 $1,211,262 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

The 100 largest positions, of 307 wallets holding a qualified pick here — biggest first. This page details 100 at most, and the number beside it is the real one. 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
0x83b9…6124backed Alcaraz46c168,523$78,011 inWon — open this pick on its own page+$90,511.863452.9%18 W · 16 L+3.7wins+0.11per pick42cpaid+8.3%equal weight57+0.06 edge/pick
0x7abe…b47ebacked Sinner56c160,236$89,275 inLost — open this pick on its own page-$89,274.731250%6 W · 6 L-1.2wins-0.10per pick60cpaid-27%equal weight46-0.03 edge/pick
0x0584…de3ebacked Sinner56c132,147$74,581 inLost — open this pick on its own page-$74,5811428.6%4 W · 10 L-3.4wins-0.24per pick53cpaid-45.2%equal weight40-0.09 edge/pick
0xa49b…4c40backed Alcaraz45c65,284$29,268 inWon — open this pick on its own page+$36,016.3211230.4%34 W · 78 L-4.4wins-0.04per pick34cpaid-30.9%equal weight46-0.03 edge/pick
0x979f…4032backed Alcaraz72c58,254$41,804 inWon — open this pick on its own page+$16,449.9110162.4%63 W · 38 L+2.1wins+0.02per pick60cpaid+2.7%equal weight52+0.02 edge/pick
0x5139…a8dbbacked Alcaraz45c51,803$23,234 inWon — open this pick on its own page+$28,568.6813935.3%49 W · 90 L-2.9wins-0.02per pick37cpaid-7.5%equal weight48-0.02 edge/pick
0x5375…aeeabacked Alcaraz52c45,827$23,940 inWon — open this pick on its own page+$21,886.8445737.9%173 W · 284 L-9.6wins-0.02per pick40cpaid-28.2%equal weight48-0.02 edge/pick
0x6a72…33eebacked Sinner55c45,535$24,863 inLost — open this pick on its own page-$24,863.2120%0 W · 2 L-1.1wins-0.54per pick54cpaid-100%equal weight46-0.04 edge/pick
0x5ba6…0f07backed Sinner46c37,000$17,050 inLost — open this pick on its own page-$17,05066949.6%332 W · 337 L-11.1wins-0.02per pick51cpaid-4.6%equal weight48-0.02 edge/pick
0xaf17…d849backed Sinner46c35,575$16,274 inLost — open this pick on its own page-$16,274.32462.5%15 W · 9 L+2.3wins+0.10per pick53cpaid+17.6%equal weight55+0.05 edge/pick
0x3151…0977backed Sinner28c35,412$9,980 inLost — open this pick on its own page-$9,979.6510845.4%49 W · 59 L+2.9wins+0.03per pick43cpaid-7.1%equal weight52+0.02 edge/pick
0xc56f…75efbacked Alcaraz47c32,384$15,221 inWon — open this pick on its own page+$17,163.644330.2%13 W · 30 L-0.2wins0.00per pick31cpaid-29%equal weight500.00 edge/pick
0xe38e…c29dbacked Alcaraz43c29,693$12,768 inWon — open this pick on its own page+$16,924.923458.8%20 W · 14 L+0.9wins+0.03per pick56cpaid+1.3%equal weight52+0.02 edge/pick
0x821d…0a01backed Sinner55c28,558$15,705 inLost — open this pick on its own page-$15,705.329935.4%35 W · 64 L-0.7wins-0.01per pick36cpaid-0.6%equal weight49-0.01 edge/pick
0x2d0f…4faabacked Alcaraz45c26,800$11,942 inWon — open this pick on its own page+$14,857.99666.7%4 W · 2 L+2.1wins+0.35per pick31cpaid+112.5%equal weight58+0.07 edge/pick
0xb077…8fe8backed Sinner56c17,288$9,760 inLost — open this pick on its own page-$9,760.3821147.9%101 W · 110 L-16.5wins-0.08per pick56cpaid-13.8%equal weight42-0.07 edge/pick
0x2f09…4632backed Sinner54c16,500$8,910 inLost — open this pick on its own page-$8,909.965950.8%30 W · 29 L+2.4wins+0.04per pick47cpaid+4.3%equal weight53+0.03 edge/pick
0x9e5c…d8e6backed Alcaraz43c15,000$6,500 inWon — open this pick on its own page+$8,5001,09035.9%391 W · 699 L+16.2wins+0.01per pick34cpaid-6.3%equal weight52+0.01 edge/pick
0xea64…f2a2backed Alcaraz43c14,450$6,214 inWon — open this pick on its own page+$8,236.559354.8%51 W · 42 L+4.5wins+0.05per pick50cpaid+20%equal weight54+0.04 edge/pick
0xa408…06ffbacked Alcaraz59c13,468$7,990 inWon — open this pick on its own page+$5,477.75560%3 W · 2 L-0.6wins-0.11per pick71cpaid-15.9%equal weight48-0.02 edge/pick
0xda35…ff0ebacked Alcaraz46c12,591$5,792 inWon — open this pick on its own page+$6,799.0359151.6%305 W · 286 L+4.3wins+0.01per pick51cpaid+0.3%equal weight51+0.01 edge/pick
0xb786…b18dbacked Sinner26c12,371$3,216 inLost — open this pick on its own page-$3,216.4439144.2%173 W · 218 L-4.7wins-0.01per pick45cpaid-6.7%equal weight49-0.01 edge/pick
0x8482…2f1fbacked Sinner45c12,167$5,473 inLost — open this pick on its own page-$5,473.25862.5%5 W · 3 L-0.4wins-0.05per pick67cpaid-11.1%equal weight49-0.01 edge/pick
0xf80b…fa00backed Alcaraz44c12,000$5,250 inWon — open this pick on its own page+$6,75015957.2%91 W · 68 L+15.8wins+0.10per pick47cpaid+18.3%equal weight60+0.09 edge/pick
0xf68a…5b1bbacked Alcaraz44c12,000$5,280 inWon — open this pick on its own page+$6,72015832.9%52 W · 106 L-2.7wins-0.02per pick35cpaid-4.9%equal weight48-0.01 edge/pick
0x50a3…cc5ebacked Sinner27c11,101$3,000 inLost — open this pick on its own page-$3,00010%0 W · 1 L-0.3wins-0.27per pick27cpaid-100%equal weight49-0.01 edge/pick
0x336b…1233backed Sinner36c10,052$3,627 inLost — open this pick on its own page-$3,626.757939.7%230 W · 349 L-0.5wins0.00per pick40cpaid-5.4%equal weight500.00 edge/pick
0xf142…57e7backed Alcaraz48c8,614$4,105 inWon — open this pick on its own page+$4,509.189546.3%44 W · 51 L+5.0wins+0.05per pick41cpaid+35.3%equal weight55+0.04 edge/pick
0x9602…4d02backed Alcaraz45c8,430$3,789 inWon — open this pick on its own page+$4,640.83933.3%13 W · 26 L+0.8wins+0.02per pick31cpaid+7.7%equal weight51+0.01 edge/pick
0x3868…5683backed Sinner42c7,086$3,000 inLost — open this pick on its own page-$2,999.947330.1%22 W · 51 L+0.2wins0.00per pick30cpaid-7%equal weight500.00 edge/pick
0xa815…a3c3backed Alcaraz54c7,000$3,770 inWon — open this pick on its own page+$3,230.0813253.8%71 W · 61 L-6.4wins-0.05per pick59cpaid-11.6%equal weight45-0.04 edge/pick
0xb438…b113backed Sinner2c6,496$130 inLost — open this pick on its own page-$129.924537.8%17 W · 28 L-3.4wins-0.08per pick45cpaid-34.4%equal weight45-0.05 edge/pick
0x1126…6e7abacked Alcaraz46c6,492$2,986 inWon — open this pick on its own page+$3,505.71926.3%5 W · 14 L-2.3wins-0.12per pick38cpaid-48%equal weight44-0.05 edge/pick
0x7d26…ccb8backed Alcaraz76c5,645$4,308 inWon — open this pick on its own page+$1,337.2613762.8%86 W · 51 L+3.6wins+0.03per pick60cpaid-5%equal weight52+0.02 edge/pick
0x2131…aaf2backed Sinner56c5,631$3,153 inLost — open this pick on its own page-$3,153.39650%3 W · 3 L-0.4wins-0.07per pick57cpaid-10.5%equal weight49-0.01 edge/pick
0xd218…b5c9backed Sinner43c5,483$2,349 inLost — open this pick on its own page-$2,349.356,72036.9%2,479 W · 4,241 L-95.8wins-0.01per pick38cpaid-20.5%equal weight48-0.01 edge/pick
0xad87…6a86backed Alcaraz44c5,003$2,201 inWon — open this pick on its own page+$2,801.491450%7 W · 7 L-0.5wins-0.04per pick54cpaid-21.8%equal weight48-0.01 edge/pick
0x8933…1495backed Sinner42c4,894$2,032 inLost — open this pick on its own page-$2,031.94520%1 W · 4 L-0.5wins-0.10per pick30cpaid-45.7%equal weight48-0.02 edge/pick
0x4b92…42e6backed Alcaraz44c4,225$1,861 inWon — open this pick on its own page+$2,363.772100%2 W · 0 L+1.1wins+0.56per pick44cpaid+129.8%equal weight55+0.04 edge/pick
0xa645…0be6backed Alcaraz45c3,763$1,693 inWon — open this pick on its own page+$2,069.433339.4%13 W · 20 L+3.2wins+0.10per pick30cpaid+19.5%equal weight56+0.06 edge/pick
0x4487…08c6backed Sinner51c3,753$1,897 inLost — open this pick on its own page-$1,897.3312737.8%48 W · 79 L-6.2wins-0.05per pick43cpaid-12.5%equal weight45-0.04 edge/pick
0x53e5…6177backed Alcaraz46c3,722$1,712 inWon — open this pick on its own page+$2,009.62450%2 W · 2 L+0.8wins+0.20per pick30cpaid+26.6%equal weight53+0.03 edge/pick
0x4c9d…d327backed Alcaraz45c3,500$1,575 inWon — open this pick on its own page+$1,924.9811652.6%61 W · 55 L-0.2wins0.00per pick53cpaid-5.1%equal weight500.00 edge/pick
0x2be4…01adbacked Alcaraz59c3,497$2,076 inWon — open this pick on its own page+$1,420.56747.8%32 W · 35 L+1.7wins+0.03per pick45cpaid-15.8%equal weight52+0.02 edge/pick
0x4dbe…af34backed Sinner55c3,280$1,793 inLost — open this pick on its own page-$1,792.9716140.4%65 W · 96 L+0.3wins0.00per pick40cpaid-1.1%equal weight500.00 edge/pick
0x9fae…0d19backed Alcaraz44c3,265$1,437 inWon — open this pick on its own page+$1,828.4742839.7%170 W · 258 L-0.8wins0.00per pick40cpaid+6%equal weight500.00 edge/pick
0x328e…dc42backed Sinner29c3,231$945 inLost — open this pick on its own page-$945.473946.2%18 W · 21 L+0.8wins+0.02per pick44cpaid-10.9%equal weight51+0.01 edge/pick
0x4aef…9337backed Alcaraz44c3,000$1,310 inWon — open this pick on its own page+$1,689.992532%8 W · 17 L+0.1wins0.00per pick32cpaid-20%equal weight500.00 edge/pick
0x9b16…0dc4backed Alcaraz63c2,939$1,856 inWon — open this pick on its own page+$1,083.41742.9%3 W · 4 L-1.3wins-0.19per pick62cpaid-38.5%equal weight45-0.04 edge/pick
0xcf6c…7e66backed Alcaraz68c2,831$1,925 inWon — open this pick on its own page+$905.921,19348.9%583 W · 610 L+9.9wins+0.01per pick48cpaid-1.5%equal weight51+0.01 edge/pick
0xaf3c…f5ffbacked Alcaraz47c2,722$1,282 inWon — open this pick on its own page+$1,440.1311859.3%70 W · 48 L+8.0wins+0.07per pick53cpaid+17.2%equal weight56+0.06 edge/pick
0xfcfe…d420backed Alcaraz70c2,468$1,730 inWon — open this pick on its own page+$738.3925352.2%132 W · 121 L-2.5wins-0.01per pick53cpaid-6.6%equal weight49-0.01 edge/pick
0x9636…1f74backed Alcaraz45c2,442$1,099 inWon — open this pick on its own page+$1,343.271100%1 W · 0 L+0.6wins+0.55per pick45cpaid+122.2%equal weight52+0.02 edge/pick
0xf5a7…63e7backed Alcaraz45c2,346$1,058 inWon — open this pick on its own page+$1,288.258143.2%35 W · 46 L-3.6wins-0.04per pick48cpaid-12.5%equal weight46-0.03 edge/pick
0xe7ca…a175backed Alcaraz45c2,222$1,000 inWon — open this pick on its own page+$1,222.2219835.4%70 W · 128 L+4.1wins+0.02per pick33cpaid-3.3%equal weight52+0.02 edge/pick
0x366c…6578backed Sinner31c2,207$695 inLost — open this pick on its own page-$694.983265.6%21 W · 11 L+4.0wins+0.13per pick53cpaid+36.3%equal weight58+0.07 edge/pick
0x9fa9…2491backed Alcaraz54c2,102$1,134 inWon — open this pick on its own page+$967.5832141.1%132 W · 189 L-1.1wins0.00per pick41cpaid-19.9%equal weight500.00 edge/pick
0x3013…e5b2backed Alcaraz48c2,082$999 inWon — open this pick on its own page+$1,082.7940144.4%178 W · 223 L+14.7wins+0.04per pick41cpaid+4.5%equal weight54+0.03 edge/pick
0x90ba…63f3backed Alcaraz46c2,050$943 inWon — open this pick on its own page+$1,1078721.8%19 W · 68 L-0.2wins0.00per pick22cpaid-8%equal weight500.00 edge/pick
0x9f6e…b0e0backed Sinner55c2,043$1,124 inLost — open this pick on its own page-$1,123.571741.2%7 W · 10 L-0.3wins-0.02per pick43cpaid-7%equal weight49-0.01 edge/pick
0x2a4d…69e7backed Sinner57c2,000$1,140 inLost — open this pick on its own page-$1,1402441.7%10 W · 14 L-5.5wins-0.23per pick65cpaid-40%equal weight38-0.11 edge/pick
0xdf3f…16a6backed Sinner16c2,000$310 inLost — open this pick on its own page-$310425%1 W · 3 L+0.2wins+0.06per pick19cpaid-28.6%equal weight51+0.01 edge/pick
0x339a…1eaebacked Alcaraz45c2,000$900 inWon — open this pick on its own page+$1,1008348.2%40 W · 43 L+9.4wins+0.11per pick37cpaid+27.4%equal weight60+0.09 edge/pick
0x1867…92cabacked Alcaraz43c2,000$860 inWon — open this pick on its own page+$1,1407147.9%34 W · 37 L+2.2wins+0.03per pick45cpaid+9.7%equal weight53+0.02 edge/pick
0xdaf7…056cbacked Alcaraz50c1,995$1,000 inWon — open this pick on its own page+$994.531100%1 W · 0 L+0.5wins+0.50per pick50cpaid+99.5%equal weight52+0.02 edge/pick
0x25f4…20e0backed Alcaraz46c1,957$900 inWon — open this pick on its own page+$1,056.5211060.9%67 W · 43 L+12.0wins+0.11per pick50cpaid+17.8%equal weight60+0.09 edge/pick
0xd6a8…5bd1backed Sinner30c1,950$585 inLost — open this pick on its own page-$585.132725.9%7 W · 20 L-4.2wins-0.15per pick41cpaid-25.9%equal weight41-0.08 edge/pick
0x2ef5…39edbacked Alcaraz44c1,866$821 inWon — open this pick on its own page+$1,044.6925722.2%57 W · 200 L-12.3wins-0.05per pick27cpaid-18.2%equal weight45-0.04 edge/pick
0xbac1…ce0ebacked Sinner15c1,863$287 inLost — open this pick on its own page-$286.6140%0 W · 4 L-0.7wins-0.17per pick17cpaid-100%equal weight47-0.02 edge/pick
0x1420…9daabacked Sinner53c1,855$991 inLost — open this pick on its own page-$990.5714243%61 W · 81 L+2.3wins+0.02per pick41cpaid-14.9%equal weight52+0.01 edge/pick
0xc9d4…fadbbacked Alcaraz77c1,800$1,380 inWon — open this pick on its own page+$419.56875%6 W · 2 L+2.1wins+0.26per pick49cpaid+93.4%equal weight57+0.06 edge/pick
0x76fc…e0bdbacked Sinner55c1,600$880 inLost — open this pick on its own page-$8804030%12 W · 28 L-1.9wins-0.05per pick35cpaid-34.7%equal weight47-0.03 edge/pick
0x1e3f…e00bbacked Sinner54c1,567$852 inLost — open this pick on its own page-$852.25333.3%1 W · 2 L-0.4wins-0.14per pick47cpaid-49.1%equal weight48-0.01 edge/pick
0x10b0…8525backed Sinner54c1,500$815 inLost — open this pick on its own page-$81543042.8%184 W · 246 L-8.6wins-0.02per pick45cpaid-7.4%equal weight48-0.02 edge/pick
0xb3d0…5c32backed Sinner57c1,500$855 inLost — open this pick on its own page-$85522629.2%66 W · 160 L+7.1wins+0.03per pick26cpaid+16.2%equal weight53+0.03 edge/pick
0x4df3…788fbacked Alcaraz43c1,446$622 inWon — open this pick on its own page+$824.1895140.1%381 W · 570 L+29.7wins+0.03per pick37cpaid+12%equal weight53+0.03 edge/pick
0x2e25…043ebacked Alcaraz47c1,387$652 inWon — open this pick on its own page+$735.11666.7%4 W · 2 L+0.5wins+0.09per pick58cpaid+63.5%equal weight52+0.02 edge/pick
0x016e…c700backed Alcaraz67c1,322$888 inWon — open this pick on its own page+$434.231861.1%11 W · 7 L+1.2wins+0.07per pick54cpaid+15.7%equal weight53+0.03 edge/pick
0xe83c…5e8fbacked Alcaraz43c1,302$560 inWon — open this pick on its own page+$742.1362742.4%266 W · 361 L+0.5wins0.00per pick42cpaid+1.1%equal weight500.00 edge/pick
0xce37…7d93backed Sinner43c1,282$550 inLost — open this pick on its own page-$549.78250%1 W · 1 L-0.1wins-0.04per pick54cpaid-23.1%equal weight500.00 edge/pick
0x1bb3…b7febacked Alcaraz45c1,261$568 inWon — open this pick on its own page+$693.7666.7%4 W · 2 L+1.4wins+0.24per pick43cpaid+30.4%equal weight55+0.05 edge/pick
0x81f5…70afbacked Alcaraz44c1,250$550 inWon — open this pick on its own page+$70036440.9%149 W · 215 L-13.2wins-0.04per pick45cpaid-9.6%equal weight46-0.03 edge/pick
0x36f8…4dc3backed Sinner56c1,205$671 inLost — open this pick on its own page-$671.321275%9 W · 3 L+1.9wins+0.15per pick60cpaid+25.2%equal weight56+0.05 edge/pick
0x6239…c24fbacked Alcaraz43c1,192$516 inWon — open this pick on its own page+$675.6814949%73 W · 76 L+3.1wins+0.02per pick47cpaid+5.3%equal weight52+0.02 edge/pick
0x97e1…017bbacked Sinner24c1,168$279 inLost — open this pick on its own page-$279.3513245.5%60 W · 72 L+3.8wins+0.03per pick43cpaid+11.4%equal weight53+0.02 edge/pick
0xcdc2…8b96backed Alcaraz45c1,115$502 inWon — open this pick on its own page+$613.251838.9%7 W · 11 L+0.6wins+0.04per pick35cpaid+15.1%equal weight52+0.01 edge/pick
0x8673…ebb9backed Alcaraz46c1,115$516 inWon — open this pick on its own page+$598.382100%2 W · 0 L+1.1wins+0.54per pick46cpaid+119.1%equal weight54+0.04 edge/pick
0xef13…53d2backed Alcaraz46c1,087$500 inWon — open this pick on its own page+$586.9625043.2%108 W · 142 L+4.3wins+0.02per pick41cpaid-5.3%equal weight52+0.02 edge/pick
0x81b8…74e8backed Sinner56c1,066$597 inLost — open this pick on its own page-$597560%3 W · 2 L-0.1wins-0.02per pick62cpaid-5.2%equal weight500.00 edge/pick
0xefaa…0af8backed Sinner2c1,000$20 inLost — open this pick on its own page-$2010%0 W · 1 L0.0wins-0.02per pick2cpaid-100%equal weight500.00 edge/pick
0x2765…7ee4backed Sinner4c1,000$40 inLost — open this pick on its own page-$4018740.6%76 W · 111 L+13.2wins+0.07per pick34cpaid+2.7%equal weight57+0.06 edge/pick
0x4ba5…2bddbacked Sinner5c990.91$50 inLost — open this pick on its own page-$49.55333.3%1 W · 2 L-0.3wins-0.09per pick42cpaid-48.7%equal weight49-0.01 edge/pick
0x0306…dcf6backed Sinner57c964.91$550 inLost — open this pick on its own page-$55014663%92 W · 54 L-2.1wins-0.01per pick64cpaid-5.8%equal weight49-0.01 edge/pick
0x9d86…2182backed Alcaraz46c914$420 inWon — open this pick on its own page+$493.561100%1 W · 0 L+0.5wins+0.54per pick46cpaid+117.4%equal weight52+0.02 edge/pick
0x8c46…be29backed Alcaraz45c900.91$409 inWon — open this pick on its own page+$492.162445.8%11 W · 13 L-2.9wins-0.12per pick58cpaid-24.3%equal weight43-0.06 edge/pick
0x7208…8a41backed Sinner56c892.86$500 inLost — open this pick on its own page-$50010%0 W · 1 L-0.6wins-0.56per pick56cpaid-100%equal weight48-0.02 edge/pick
0x7fea…8f74backed Sinner27c885.59$235 inLost — open this pick on its own page-$235.0192145.2%416 W · 505 L-4.7wins-0.01per pick46cpaid-20.1%equal weight490.00 edge/pick
0xebed…97bebacked Alcaraz46c841$387 inWon — open this pick on its own page+$454.14366.7%2 W · 1 L+0.8wins+0.27per pick40cpaid+47.2%equal weight53+0.03 edge/pick
0xfed6…a111backed Sinner32c812.39$259 inLost — open this pick on its own page-$258.643063.3%19 W · 11 L-1.3wins-0.04per pick68cpaid-6.8%equal weight47-0.02 edge/pick
0x2005…75eabacked Sinner32c783.73$249 inLost — open this pick on its own page-$249.0311,43543.4%4,959 W · 6,476 L+17.8wins0.00per pick43cpaid-20.1%equal weight500.00 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.