TailMyPicks

Check any Polymarket wallet’s real record.

Tennis · resolved market

National Bank Open: Marta Kostyuk vs Katherine Sebov

Rebuilt .

What this market resolved to

Winning outcome
Marta Kostyukof Marta Kostyuk, Katherine Sebov
Resolved
US/Eastern, the zone Polymarket writes its markets in
Scored in
Tennisevery record on this page is that Category’s
Volume Polymarket published
$147,226
Volume TailMyPicks’s own read summed
$152,138

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 $147,226 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 64 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
0xde9f…d43cbacked Marta Kostyuk80c18,036$14,400 inWon — open this pick on its own page+$3,635.716,59950.7%3,343 W · 3,256 L+259.7wins+0.04per pick47cpaid-4.9%equal weight54+0.04 edge/pick
0xfe78…0319backed Katherine Sebov13c12,298$1,578 inLost — open this pick on its own page-$1,577.938,82836.1%3,190 W · 5,638 L-193.3wins-0.02per pick38cpaid-27.2%equal weight48-0.02 edge/pick
0xf3a1…bf4bbacked Katherine Sebov23c10,417$2,396 inLost — open this pick on its own page-$2,395.8311450.9%58 W · 56 L+5.7wins+0.05per pick46cpaid+4.9%equal weight55+0.04 edge/pick
0x204f…5e14backed Katherine Sebov14c10,388$1,491 inLost — open this pick on its own page-$1,491.368,21745.5%3,737 W · 4,480 L+166.6wins+0.02per pick43cpaid-16.3%equal weight52+0.02 edge/pick
0xff81…44c9backed Katherine Sebov20c8,454$1,731 inLost — open this pick on its own page-$1,730.681,26756.6%717 W · 550 L-18.5wins-0.01per pick58cpaid-2%equal weight48-0.01 edge/pick
0x9cb9…32f2backed Katherine Sebov10c7,600$790 inLost — open this pick on its own page-$789.6452844.7%236 W · 292 L+30.8wins+0.06per pick39cpaid+6.7%equal weight56+0.06 edge/pick
0x32b4…8b21backed Katherine Sebov4c5,970$212 inLost — open this pick on its own page-$211.713,60542.4%1,530 W · 2,075 L-43.2wins-0.01per pick44cpaid-16.7%equal weight49-0.01 edge/pick
0x565c…878dbacked Katherine Sebov14c5,770$790 inLost — open this pick on its own page-$79010730.8%33 W · 74 L+2.6wins+0.02per pick28cpaid-4.6%equal weight52+0.02 edge/pick
0x64f4…b38ebacked Katherine Sebov9c3,697$330 inLost — open this pick on its own page-$33027732.5%90 W · 187 L-9.9wins-0.04per pick36cpaid-22.1%equal weight46-0.03 edge/pick
0x4699…5051backed Katherine Sebov6c3,279$200 inLost — open this pick on its own page-$2009737.9%77 W · 896 L-20.2wins-0.02per pick10cpaid-28.2%equal weight48-0.02 edge/pick
0x6485…a265backed Marta Kostyuk77c2,699$2,088 inWon — open this pick on its own page+$611.42,28152%1,187 W · 1,094 L+82.3wins+0.04per pick48cpaid+3.5%equal weight54+0.04 edge/pick
0x0d2d…7ff5backed Katherine Sebov14c2,297$311 inLost — open this pick on its own page-$310.868,50542.6%3,619 W · 4,886 L-166.3wins-0.02per pick45cpaid-21.3%equal weight48-0.02 edge/pick
0xcf6c…7e66backed Marta Kostyuk77c2,183$1,679 inWon — open this pick on its own page+$503.791,19348.9%583 W · 610 L+9.9wins+0.01per pick48cpaid-1.5%equal weight51+0.01 edge/pick
0xdda3…d55fbacked Katherine Sebov5c2,000$100 inLost — open this pick on its own page-$10018244%80 W · 102 L+8.7wins+0.05per pick39cpaid+35.4%equal weight55+0.04 edge/pick
0x076d…8d4cbacked Katherine Sebov6c1,889$107 inLost — open this pick on its own page-$106.924,24152.6%2,232 W · 2,009 L+65.0wins+0.02per pick51cpaid-1.6%equal weight52+0.02 edge/pick
0xf96d…20bebacked Katherine Sebov7c1,768$128 inLost — open this pick on its own page-$12848214.1%68 W · 414 L-14.8wins-0.03per pick17cpaid-29.5%equal weight47-0.03 edge/pick
0x2a69…d2f7backed Katherine Sebov12c1,346$161 inLost — open this pick on its own page-$160.631,43524.3%348 W · 1,087 L-36.2wins-0.03per pick27cpaid-22.2%equal weight47-0.02 edge/pick
0x5d47…d0a2backed Katherine Sebov6c1,293$75 inLost — open this pick on its own page-$74.6250%1 W · 1 L+0.5wins+0.27per pick23cpaid+25%equal weight52+0.02 edge/pick
0x398f…30f2backed Katherine Sebov11c1,238$135 inLost — open this pick on its own page-$134.9816941.4%70 W · 99 L-2.8wins-0.02per pick43cpaid-25.5%equal weight48-0.01 edge/pick
0xd9e0…05f2backed Katherine Sebov16c1,220$200 inLost — open this pick on its own page-$200.062,76647.7%1,318 W · 1,448 L+44.2wins+0.02per pick46cpaid-18.4%equal weight52+0.02 edge/pick
0x789c…0d10backed Katherine Sebov17c1,083$189 inLost — open this pick on its own page-$189.3929149.5%144 W · 147 L-2.2wins-0.01per pick50cpaid-10.1%equal weight49-0.01 edge/pick
0x1fb7…fb66backed Katherine Sebov9c1,000$89 inLost — open this pick on its own page-$8953644.8%240 W · 296 L-20.2wins-0.04per pick49cpaid-18.3%equal weight46-0.04 edge/pick
0x58b3…653cbacked Katherine Sebov20c1,000$198 inLost — open this pick on its own page-$198.4245036%162 W · 288 L+12.1wins+0.03per pick33cpaid+14.3%equal weight53+0.03 edge/pick
0x95f1…6e6fbacked Katherine Sebov9c978.14$91 inLost — open this pick on its own page-$91.4211338.9%44 W · 69 L+6.7wins+0.06per pick33cpaid+0.1%equal weight55+0.05 edge/pick
0x29ae…d984backed Katherine Sebov19c801.79$152 inLost — open this pick on its own page-$152.341540%6 W · 9 L+0.7wins+0.05per pick35cpaid+27.3%equal weight52+0.02 edge/pick
0x38fa…87b5backed Katherine Sebov14c591.36$85 inLost — open this pick on its own page-$84.6518829.8%56 W · 132 L-1.4wins-0.01per pick31cpaid-7.4%equal weight49-0.01 edge/pick
0x04e6…3914backed Katherine Sebov6c555$32 inLost — open this pick on its own page-$32.1934655.2%191 W · 155 L+4.8wins+0.01per pick54cpaid+2.6%equal weight51+0.01 edge/pick
0x5a22…c3b5backed Katherine Sebov22c549.51$120 inLost — open this pick on its own page-$12012735.4%45 W · 82 L-2.6wins-0.02per pick37cpaid-27.6%equal weight48-0.02 edge/pick
0xb797…e779backed Katherine Sebov18c500$88 inLost — open this pick on its own page-$88.345261.5%32 W · 20 L+8.3wins+0.16per pick46cpaid+39.3%equal weight62+0.11 edge/pick
0x6bfd…b93cbacked Katherine Sebov4c498.91$19 inLost — open this pick on its own page-$18.6110%0 W · 1 L0.0wins-0.04per pick4cpaid-100%equal weight500.00 edge/pick
0xa36c…5754backed Katherine Sebov12c495.87$60 inLost — open this pick on its own page-$6042042.6%179 W · 241 L-11.0wins-0.03per pick45cpaid-10%equal weight47-0.02 edge/pick
0x126f…739fbacked Marta Kostyuk79c433.01$341 inWon — open this pick on its own page+$91.758250%41 W · 41 L-3.2wins-0.04per pick54cpaid-10%equal weight47-0.03 edge/pick
0xba58…28c2backed Marta Kostyuk80c400$320 inWon — open this pick on its own page+$8065652.1%342 W · 314 L+7.5wins+0.01per pick51cpaid-2.2%equal weight51+0.01 edge/pick
0xc1d7…47a4backed Katherine Sebov12c353.81$43 inLost — open this pick on its own page-$431,02341.3%422 W · 601 L-24.8wins-0.02per pick44cpaid-7.5%equal weight47-0.02 edge/pick
0xda07…62a0backed Marta Kostyuk80c353.49$282 inWon — open this pick on its own page+$71.4224858.5%145 W · 103 L+2.0wins+0.01per pick58cpaid-4.7%equal weight51+0.01 edge/pick
0x1df2…89a0backed Katherine Sebov11c347.93$37 inLost — open this pick on its own page-$36.922,06535.2%727 W · 1,338 L-52.7wins-0.03per pick38cpaid-19.4%equal weight47-0.03 edge/pick
0x3992…349cbacked Katherine Sebov14c346.03$50 inLost — open this pick on its own page-$502626.9%7 W · 19 L-2.9wins-0.11per pick38cpaid-24.4%equal weight44-0.06 edge/pick
0xe7e1…b1aebacked Katherine Sebov14c340.11$49 inLost — open this pick on its own page-$48.9311750.4%59 W · 58 L+3.7wins+0.03per pick47cpaid-0.8%equal weight53+0.03 edge/pick
0x8182…5422backed Katherine Sebov20c306.5$60 inLost — open this pick on its own page-$59.77742.9%3 W · 4 L-0.1wins-0.01per pick44cpaid+4.1%equal weight500.00 edge/pick
0x9e3e…f882backed Katherine Sebov7c252.14$18 inLost — open this pick on its own page-$17.651,04236.5%380 W · 662 L-20.2wins-0.02per pick38cpaid-23.9%equal weight48-0.02 edge/pick
0x323e…1ddabacked Katherine Sebov5c240$13 inLost — open this pick on its own page-$12.9963537.6%239 W · 396 L+20.7wins+0.03per pick34cpaid+10.4%equal weight53+0.03 edge/pick
0xa871…3932backed Katherine Sebov24c239.04$56 inLost — open this pick on its own page-$56.41944.4%4 W · 5 L+0.7wins+0.08per pick37cpaid+6.3%equal weight52+0.02 edge/pick
0xba00…527bbacked Katherine Sebov6c227.7$14 inLost — open this pick on its own page-$13.8921563.3%136 W · 79 L+18.0wins+0.08per pick55cpaid+12.5%equal weight58+0.07 edge/pick
0x9b2c…2151backed Katherine Sebov6c220$13 inLost — open this pick on its own page-$13.238911.6%45 W · 344 L+4.7wins+0.01per pick10cpaid+22.7%equal weight51+0.01 edge/pick
0x4110…0b93backed Katherine Sebov6c192.75$11 inLost — open this pick on its own page-$11.52817.9%5 W · 23 L-2.7wins-0.09per pick27cpaid-60.2%equal weight44-0.05 edge/pick
0x2b35…0bfebacked Katherine Sebov6c190.35$11 inLost — open this pick on its own page-$10.621,54149.2%758 W · 783 L+16.2wins+0.01per pick48cpaid+3.4%equal weight51+0.01 edge/pick
0x9e7f…2d2dbacked Marta Kostyuk77c180$139 inWon — open this pick on its own page+$41.222857.1%16 W · 12 L+2.5wins+0.09per pick48cpaid+9.3%equal weight55+0.05 edge/pick
0x6280…120dbacked Katherine Sebov18c140.35$25 inLost — open this pick on its own page-$25.122142.9%9 W · 12 L-1.1wins-0.05per pick48cpaid-4.2%equal weight47-0.02 edge/pick
0x22da…2866backed Katherine Sebov16c134.78$21 inLost — open this pick on its own page-$21.1995050.1%476 W · 474 L-10.1wins-0.01per pick51cpaid-12.1%equal weight49-0.01 edge/pick
0xb3e6…4be3backed Marta Kostyuk77c133.03$103 inWon — open this pick on its own page+$29.9819347.2%91 W · 102 L-8.7wins-0.05per pick52cpaid-12.6%equal weight46-0.04 edge/pick
0xb6dd…7af9backed Katherine Sebov16c114.66$19 inLost — open this pick on its own page-$18.6415236.2%55 W · 97 L-14.3wins-0.09per pick46cpaid-36.2%equal weight41-0.08 edge/pick
0x3cb3…055cbacked Katherine Sebov19c103.14$20 inLost — open this pick on its own page-$201145.5%5 W · 6 L-0.8wins-0.08per pick53cpaid-16.3%equal weight47-0.02 edge/pick
0xd325…8c5fbacked Katherine Sebov18c100$18 inLost — open this pick on its own page-$17.522540.4%91 W · 134 L-9.1wins-0.04per pick44cpaid-15.7%equal weight46-0.04 edge/pick
0x39dc…fc23backed Katherine Sebov11c97.72$11 inLost — open this pick on its own page-$10.931,86144.4%827 W · 1,034 L-15.1wins-0.01per pick45cpaid-5.4%equal weight49-0.01 edge/pick
0x402a…624fbacked Katherine Sebov12c95$11 inLost — open this pick on its own page-$11.425048.8%122 W · 128 L+2.8wins+0.01per pick48cpaid-5.5%equal weight51+0.01 edge/pick
0xe3db…c173backed Katherine Sebov14c94.16$13 inLost — open this pick on its own page-$12.918540%74 W · 111 L-8.5wins-0.05per pick45cpaid-13.2%equal weight45-0.04 edge/pick
0x7d9a…05e6backed Katherine Sebov13c87.91$11 inLost — open this pick on its own page-$11.452,08544.5%928 W · 1,157 L-51.6wins-0.02per pick47cpaid-22.7%equal weight47-0.02 edge/pick
0x505f…645ebacked Marta Kostyuk78c50$39 inWon — open this pick on its own page+$10.91,62652.7%857 W · 769 L+13.7wins+0.01per pick52cpaid-6.9%equal weight51+0.01 edge/pick
0xd218…b5c9backed Katherine Sebov21c50$11 inLost — open this pick on its own page-$10.66,72036.9%2,479 W · 4,241 L-95.8wins-0.01per pick38cpaid-20.5%equal weight48-0.01 edge/pick
0xdb83…1e50backed Katherine Sebov23c46.19$10 inLost — open this pick on its own page-$10.453,66145.2%1,654 W · 2,007 L-8.7wins0.00per pick45cpaid-12.2%equal weight500.00 edge/pick
0x9cbb…dab4backed Marta Kostyuk77c29.11$22 inWon — open this pick on its own page+$6.671145.5%5 W · 6 L-0.6wins-0.05per pick51cpaid+7.1%equal weight48-0.02 edge/pick
0x388b…58adbacked Marta Kostyuk79c26.44$21 inWon — open this pick on its own page+$5.572958.6%17 W · 12 L+1.0wins+0.03per pick55cpaid+6%equal weight52+0.02 edge/pick
0xf768…7831backed Marta Kostyuk80c24.94$20 inWon — open this pick on its own page+$5.0678957.8%456 W · 333 L+56.2wins+0.07per pick51cpaid+8.8%equal weight58+0.07 edge/pick
0x45a8…5aedbacked Marta Kostyuk79c22.16$17 inWon — open this pick on its own page+$4.76771.6%48 W · 19 L+10.5wins+0.16per pick56cpaid+33%equal weight63+0.11 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.

The rest of this event

Polymarket sells these questions together. 4 in all. TailMyPicks has no name for an event — the venue publishes an identifier and no title — so they are listed by their own questions.

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.