The School of Tennis Oddsodds.tennis
Default modelInterquartile mean (Vetted List)
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Ekaterina Alexandrova v Marta Kostyuk

Kickoff: 2026-10-21 12:57 UTC

Final: Ekaterina Alexandrova 1–0 Marta Kostyuk

Closing line — the calculated probabilities and expected value from the last prices recorded before kickoff, under your selected model. The game has started, so these are not live figures. Assess the reliability of each model's probability predictions against all settled-game outcomes →

Head to Head

55 sportsbooks (17 in analysis )

Estimated chance of each outcome, according to the model: Interquartile mean (Vetted List)

Ekaterina Alexandrova (Local)

Prediction 41.30%2.42fair odd
EV +4.08%
Edge +1.62%
Kelly +2.68%
Growth +0.109%

assuming max odds 2.52

Bookmakers’ predictions’ distribution
37.93%41.32%41.33%43.63%MIN.MEANMEDIANMAX.
Odds’ distribution
2.082.262.252.5248.08%44.34%44.44%39.68%MIN.MEANMEDIANMAX.

Marta Kostyuk (Visit)

Prediction 58.70%1.70fair odd
EV -0.797%
Edge -0.471%
Kelly -1.15%
Growth +0.000%

assuming max odds 1.69

Bookmakers’ predictions’ distribution
56.37%58.68%58.67%62.07%MIN.MEANMEDIANMAX.
Odds’ distribution
1.541.631.621.6964.94%61.32%61.73%59.17%MIN.MEANMEDIANMAX.

At the last prices before kickoff, Interquartile mean (Vetted List) estimated these probabilities for Head to Head: Ekaterina Alexandrova (Local): 41.30%; Marta Kostyuk (Visit): 58.70%. For Ekaterina Alexandrova (Local), that estimate was equivalent to fair decimal odds of 2.42. 2 bookmakers offered closing odds above that level; the best were 2.52, corresponding to a positive expected value of +4.08%.

Sportsbook Odds (55 sportsbooks)

We're not affiliated with any bookmaker, we earn nothing from any action done with them.

BookmakerLocal ▼VisitMarginUpdated
1xBet🎯2.52I 39.68%NM 37.93%EV +4.08%E +1.62%K +2.68%G +0.109%1.54I 64.94%NM 62.07%EV -9.60%E -6.23%K -17.78%G +0.000%4.6%2026-10-21 12:55
Pinnacle🎯2.46I 40.65%NM 39.71%EV +1.60%E +0.649%K +1.09%G +0.017%1.62I 61.73%NM 60.29%EV -4.91%E -3.03%K -7.91%G +0.000%2.4%2026-10-21 12:50
BetOnline.ag🎯2.40I 41.67%NM 40.30%EV -0.881%E -0.367%K -0.629%G +0.000%1.62I 61.73%NM 59.70%EV -4.91%E -3.03%K -7.91%G +0.000%3.4%2026-10-21 12:35
LowVig.ag🎯2.40I 41.67%NM 40.30%EV -0.881%E -0.367%K -0.629%G +0.000%1.62I 61.73%NM 59.70%EV -4.91%E -3.03%K -7.91%G +0.000%3.4%2026-10-21 12:35
DraftKings🎯2.39I 41.84%NM 39.95%EV -1.29%E -0.541%K -0.931%G +0.000%1.59I 62.89%NM 60.05%EV -6.67%E -4.19%K -11.30%G +0.000%4.7%2026-10-21 12:54
Bovada🎯2.35I 42.55%NM 40.66%EV -2.95%E -1.25%K -2.18%G +0.000%1.61I 62.11%NM 59.34%EV -5.49%E -3.41%K -9.00%G +0.000%4.7%2026-10-21 12:34
PlayUp🎯2.35I 42.55%NM 40.20%EV -2.95%E -1.25%K -2.18%G +0.000%1.58I 63.29%NM 59.80%EV -7.25%E -4.59%K -12.51%G +0.000%5.8%2026-10-21 12:35
Bet Right🎯2.32I 43.10%NM 40.97%EV -4.18%E -1.80%K -3.17%G +0.000%1.61I 62.11%NM 59.03%EV -5.49%E -3.41%K -9.00%G +0.000%5.2%2026-10-21 12:55
Winamax (DE)🎯2.30I 43.48%NM 41.92%EV -5.01%E -2.18%K -3.85%G +0.000%1.66I 60.24%NM 58.08%EV -2.56%E -1.54%K -3.88%G +0.000%3.7%2026-10-20 18:50
Fanatics🎯2.30I 43.48%NM 41.33%EV -5.01%E -2.18%K -3.85%G +0.000%1.62I 61.73%NM 58.67%EV -4.91%E -3.03%K -7.91%G +0.000%5.2%2026-10-21 12:31
Coolbet🎯2.30I 43.48%NM 41.33%EV -5.01%E -2.18%K -3.85%G +0.000%1.62I 61.73%NM 58.67%EV -4.91%E -3.03%K -7.91%G +0.000%5.2%2026-10-21 12:35
FanDuel🎯2.30I 43.48%NM 41.33%EV -5.01%E -2.18%K -3.85%G +0.000%1.62I 61.73%NM 58.67%EV -4.91%E -3.03%K -7.91%G +0.000%5.2%2026-10-21 05:05
theScore Bet🎯2.30I 43.48%NM 41.33%EV -5.01%E -2.18%K -3.85%G +0.000%1.62I 61.73%NM 58.67%EV -4.91%E -3.03%K -7.91%G +0.000%5.2%2026-10-21 04:50
BoyleSports🎯2.30I 43.48%NM 41.33%EV -5.01%E -2.18%K -3.85%G +0.000%1.62I 61.73%NM 58.67%EV -4.91%E -3.03%K -7.91%G +0.000%5.2%2026-10-21 12:45
Betway🎯2.30I 43.48%NM 41.03%EV -5.01%E -2.18%K -3.85%G +0.000%1.60I 62.50%NM 58.97%EV -6.08%E -3.80%K -10.13%G +0.000%6.0%2026-10-21 12:35
PointsBet (AU)🎯2.30I 43.48%NM 41.03%EV -5.01%E -2.18%K -3.85%G +0.000%1.60I 62.50%NM 58.97%EV -6.08%E -3.80%K -10.13%G +0.000%6.0%2026-10-21 12:40
TAB🎯2.30I 43.48%NM 40.72%EV -5.01%E -2.18%K -3.85%G +0.000%1.58I 63.29%NM 59.28%EV -7.25%E -4.59%K -12.51%G +0.000%6.8%2026-10-21 12:35
Tipico (DE)🎯2.30I 43.48%NM 40.26%EV -5.01%E -2.18%K -3.85%G +0.000%1.55I 64.52%NM 59.74%EV -9.01%E -5.82%K -16.39%G +0.000%8.0%2026-10-21 12:35
Unibet (UK)🎯2.29I 43.67%NM 41.58%EV -5.42%E -2.37%K -4.20%G +0.000%1.63I 61.35%NM 58.42%EV -4.32%E -2.65%K -6.85%G +0.000%5.0%2026-10-21 06:05
Marathon Bet🎯2.29I 43.67%NM 41.43%EV -5.42%E -2.37%K -4.20%G +0.000%1.62I 61.73%NM 58.57%EV -4.91%E -3.03%K -7.91%G +0.000%5.4%2026-10-21 12:55
ReBet🎯2.28I 43.86%NM 41.69%EV -5.84%E -2.56%K -4.56%G +0.000%1.63I 61.35%NM 58.31%EV -4.32%E -2.65%K -6.85%G +0.000%5.2%2026-10-21 10:50
NordicBet🎯2.26I 44.25%NM 41.75%EV -6.66%E -2.95%K -5.29%G +0.000%1.62I 61.73%NM 58.25%EV -4.91%E -3.03%K -7.91%G +0.000%6.0%2026-10-20 18:50
Betsson🎯2.26I 44.25%NM 41.75%EV -6.66%E -2.95%K -5.29%G +0.000%1.62I 61.73%NM 58.25%EV -4.91%E -3.03%K -7.91%G +0.000%6.0%2026-10-20 19:16
SportsBet🎯2.26I 44.25%NM 41.45%EV -6.66%E -2.95%K -5.29%G +0.000%1.60I 62.50%NM 58.55%EV -6.08%E -3.80%K -10.13%G +0.000%6.7%2026-10-21 05:05
picklebet_au🎯2.25I 44.44%NM 41.86%EV -7.08%E -3.14%K -5.66%G +0.000%1.62I 61.73%NM 58.14%EV -4.91%E -3.03%K -7.91%G +0.000%6.2%2026-10-21 10:50
LeoVegas🎯2.25I 44.44%NM 41.86%EV -7.08%E -3.14%K -5.66%G +0.000%1.62I 61.73%NM 58.14%EV -4.91%E -3.03%K -7.91%G +0.000%6.2%2026-10-20 23:05
Betfair Sportsbook (UK)🎯2.25I 44.44%NM 41.86%EV -7.08%E -3.14%K -5.66%G +0.000%1.62I 61.73%NM 58.14%EV -4.91%E -3.03%K -7.91%G +0.000%6.2%2026-10-20 19:35
Ladbrokes (AU)🎯2.25I 44.44%NM 41.86%EV -7.08%E -3.14%K -5.66%G +0.000%1.62I 61.73%NM 58.14%EV -4.91%E -3.03%K -7.91%G +0.000%6.2%2026-10-21 12:45
Neds🎯2.25I 44.44%NM 41.86%EV -7.08%E -3.14%K -5.66%G +0.000%1.62I 61.73%NM 58.14%EV -4.91%E -3.03%K -7.91%G +0.000%6.2%2026-10-21 12:45
Betr (AU)🎯2.25I 44.44%NM 41.71%EV -7.08%E -3.14%K -5.66%G +0.000%1.61I 62.11%NM 58.29%EV -5.49%E -3.41%K -9.00%G +0.000%6.6%2026-10-21 12:35
Paddy Power🎯2.25I 44.44%NM 41.10%EV -7.08%E -3.14%K -5.66%G +0.000%1.57I 63.69%NM 58.90%EV -7.84%E -4.99%K -13.76%G +0.000%8.1%2026-10-20 19:40
Ladbrokes (UK)🎯2.25I 44.44%NM 41.10%EV -7.08%E -3.14%K -5.66%G +0.000%1.57I 63.69%NM 58.90%EV -7.84%E -4.99%K -13.76%G +0.000%8.1%2026-10-21 12:45
Coral🎯2.25I 44.44%NM 41.10%EV -7.08%E -3.14%K -5.66%G +0.000%1.57I 63.69%NM 58.90%EV -7.84%E -4.99%K -13.76%G +0.000%8.1%2026-10-21 12:45
Hard Rock Bet🎯2.20I 45.45%NM 43.44%EV -9.14%E -4.15%K -7.62%G +0.000%1.69I 59.17%NM 56.56%EV -0.797%E -0.471%K -1.15%G +0.000%4.6%2026-10-20 21:15
William Hill🎯2.20I 45.45%NM 43.15%EV -9.14%E -4.15%K -7.62%G +0.000%1.67I 59.88%NM 56.85%EV -1.97%E -1.18%K -2.94%G +0.000%5.3%2026-10-21 05:10
888sport🎯2.20I 45.45%NM 43.15%EV -9.14%E -4.15%K -7.62%G +0.000%1.67I 59.88%NM 56.85%EV -1.97%E -1.18%K -2.94%G +0.000%5.3%2026-10-21 05:10
888sport (SE)🎯2.20I 45.45%NM 43.15%EV -9.14%E -4.15%K -7.62%G +0.000%1.67I 59.88%NM 56.85%EV -1.97%E -1.18%K -2.94%G +0.000%5.3%2026-10-21 05:10
Mr Green (SE)🎯2.20I 45.45%NM 43.15%EV -9.14%E -4.15%K -7.62%G +0.000%1.67I 59.88%NM 56.85%EV -1.97%E -1.18%K -2.94%G +0.000%5.3%2026-10-21 05:10
Winamax (FR)🎯2.20I 45.45%NM 42.11%EV -9.14%E -4.15%K -7.62%G +0.000%1.60I 62.50%NM 57.89%EV -6.08%E -3.80%K -10.13%G +0.000%8.0%2026-10-21 10:20
BetRivers🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:14
Virgin Bet🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
LiveScore Bet🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
TABtouch🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Grosvenor🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Unibet (NL)🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Unibet (SE)🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Casumo🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
LeoVegas (SE)🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Unibet🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:16
Bally Bet🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
betPARX🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Svenska Spel🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:16
ATG (SE)🎯2.18I 45.87%NM 43.52%EV -9.97%E -4.57%K -8.45%G +0.000%1.68I 59.52%NM 56.48%EV -1.38%E -0.824%K -2.03%G +0.000%5.4%2026-10-20 21:15
Unibet (FR)🎯2.15I 46.51%NM 42.20%EV -11.21%E -5.21%K -9.74%G +0.000%1.57I 63.69%NM 57.80%EV -7.84%E -4.99%K -13.76%G +0.000%10.2%2026-10-21 06:20
PMU (FR)🎯2.08I 48.08%NM 43.63%EV -14.10%E -6.78%K -13.05%G +0.000%1.61I 62.11%NM 56.37%EV -5.49%E -3.41%K -9.00%G +0.000%10.2%2026-10-20 21:15
Margin = Margin (Overround) · I = Implied Probability · NM = No-Margin Probability · EV = Expected Value · E = Edge · K = Kelly Criterion · G = Bankroll Growth

Updated is when each book last changed its price, so an older time means the odds simply haven't moved, not that the price is stale. Books not seen in the last ~15 minutes are normally dropped; only if a whole market's feed goes quiet are the latest recorded prices shown instead.

Exchanges (5)

BookmakerLocalVisitMargin ▲Updated
Betfair Exchange (AU)◎2.50I 40.00%NM 39.61%1.64I 60.98%NM 60.39%1.0%2026-10-21 12:55
Betfair Exchange (UK)◎2.50I 40.00%NM 39.61%1.64I 60.98%NM 60.39%1.0%2026-10-21 12:55
Betfair Exchange (EU)◎2.50I 40.00%NM 39.61%1.64I 60.98%NM 60.39%1.0%2026-10-21 12:55
Matchbook◎2.50I 40.00%NM 39.61%1.64I 60.98%NM 60.39%1.0%2026-10-21 12:55
Novig◎2.47I 40.49%NM 39.76%1.63I 61.35%NM 60.24%1.8%2026-10-21 12:55