The School of Tennis Oddsodds.tennis
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Tatjana Maria v Jelena Ostapenko

2026-08-30 15:00 UTC — WTA US Open

Head to Head

30 sportsbooks (8 in analysis )

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

Tatjana Maria (Local)

Prediction 41.49%2.41fair odd
EV +1.64%
Edge +0.669%
Kelly +1.13%
Growth +0.019%

assuming max odds 2.45

Bookmakers’ predictions’ distribution
37.97%41.50%41.50%42.31%MIN.MEANMEDIANMAX.
Odds’ distribution
2.102.262.252.4547.62%44.29%44.44%40.82%MIN.MEANMEDIANMAX.

Jelena Ostapenko (Visit)

Prediction 58.51%1.71fair odd
EV -3.45%
Edge -2.09%
Kelly -5.31%
Growth +0.000%

assuming max odds 1.65

Bookmakers’ predictions’ distribution
57.69%58.50%58.50%62.03%MIN.MEANMEDIANMAX.
Odds’ distribution
1.501.621.641.6566.67%61.87%60.98%60.61%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Tatjana Maria (Local): 41.49%; Jelena Ostapenko (Visit): 58.51%. For Tatjana Maria (Local), that estimate is equivalent to fair decimal odds of 2.41. 1 bookmaker offers odds above that level; the best available odds are 2.45, producing a positive expected value of +1.64%.

Sportsbook Odds (30 sportsbooks)

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

BookmakerLocal ▼VisitMarginUpdated
SportsBet🎯2.45I 40.82%NM 37.97%EV +1.64%E +0.669%K +1.13%G +0.019%1.50I 66.67%NM 62.03%EV -12.23%E -8.15%K -24.46%G +0.000%7.5%2026-08-27 21:20
Betway🎯2.30I 43.48%NM 41.77%EV -4.58%E -1.99%K -3.53%G +0.000%1.65I 60.61%NM 58.23%EV -3.45%E -2.09%K -5.31%G +0.000%4.1%2026-08-27 21:01
Marathon Bet🎯2.30I 43.48%NM 41.18%EV -4.58%E -1.99%K -3.53%G +0.000%1.61I 62.11%NM 58.82%EV -5.79%E -3.60%K -9.49%G +0.000%5.6%2026-08-27 21:20
888sport🎯2.30I 43.48%NM 41.18%EV -4.58%E -1.99%K -3.53%G +0.000%1.61I 62.11%NM 58.82%EV -5.79%E -3.60%K -9.49%G +0.000%5.6%2026-08-27 21:40
Mr Green (SE)🎯2.30I 43.48%NM 41.18%EV -4.58%E -1.99%K -3.53%G +0.000%1.61I 62.11%NM 58.82%EV -5.79%E -3.60%K -9.49%G +0.000%5.6%2026-08-28 00:01
Fanatics🎯2.30I 43.48%NM 40.87%EV -4.58%E -1.99%K -3.53%G +0.000%1.59I 62.89%NM 59.13%EV -6.96%E -4.38%K -11.80%G +0.000%6.4%2026-08-27 21:40
DraftKings🎯2.29I 43.67%NM 41.28%EV -5.00%E -2.18%K -3.88%G +0.000%1.61I 62.11%NM 58.72%EV -5.79%E -3.60%K -9.49%G +0.000%5.8%2026-08-27 21:40
PlayUp🎯2.28I 43.86%NM 41.24%EV -5.41%E -2.37%K -4.23%G +0.000%1.60I 62.50%NM 58.76%EV -6.38%E -3.99%K -10.63%G +0.000%6.4%2026-08-27 22:45
GTbets🎯2.26I 44.25%NM 42.20%EV -6.24%E -2.76%K -4.96%G +0.000%1.65I 60.61%NM 57.80%EV -3.45%E -2.09%K -5.31%G +0.000%4.9%2026-08-27 20:35
Hard Rock Bet🎯2.25I 44.44%NM 42.31%EV -6.66%E -2.96%K -5.33%G +0.000%1.65I 60.61%NM 57.69%EV -3.45%E -2.09%K -5.31%G +0.000%5.1%2026-08-27 21:55
PMU (FR)🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 20:35
BetRivers🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 20:36
ATG (SE)🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 20:35
Svenska Spel🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 20:35
Grosvenor🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:40
Casumo🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:40
Virgin Bet🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:40
betPARX🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:40
LiveScore Bet🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:45
Bally Bet🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:45
Unibet (NL)🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 21:50
TABtouch🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 22:00
Unibet🎯2.25I 44.44%NM 42.16%EV -6.66%E -2.96%K -5.33%G +0.000%1.64I 60.98%NM 57.84%EV -4.04%E -2.46%K -6.31%G +0.000%5.4%2026-08-27 22:15
PointsBet (AU)🎯2.25I 44.44%NM 41.86%EV -6.66%E -2.96%K -5.33%G +0.000%1.62I 61.73%NM 58.14%EV -5.21%E -3.21%K -8.40%G +0.000%6.2%2026-08-27 21:55
theScore Bet🎯2.25I 44.44%NM 41.71%EV -6.66%E -2.96%K -5.33%G +0.000%1.61I 62.11%NM 58.29%EV -5.79%E -3.60%K -9.49%G +0.000%6.6%2026-08-27 20:35
Betr (AU)🎯2.25I 44.44%NM 41.71%EV -6.66%E -2.96%K -5.33%G +0.000%1.61I 62.11%NM 58.29%EV -5.79%E -3.60%K -9.49%G +0.000%6.6%2026-08-27 21:45
MyBookie.ag🎯2.23I 44.84%NM 41.47%EV -7.49%E -3.36%K -6.09%G +0.000%1.58I 63.29%NM 58.53%EV -7.55%E -4.78%K -13.01%G +0.000%8.1%2026-08-27 20:35
LeoVegas🎯2.20I 45.45%NM 42.11%EV -8.73%E -3.97%K -7.28%G +0.000%1.60I 62.50%NM 57.89%EV -6.38%E -3.99%K -10.63%G +0.000%8.0%2026-08-27 21:40
ReBet🎯2.18I 45.87%NM 41.71%EV -9.56%E -4.39%K -8.10%G +0.000%1.56I 64.10%NM 58.29%EV -8.72%E -5.59%K -15.57%G +0.000%10.0%2026-08-27 21:00
Unibet (FR)🎯2.10I 47.62%NM 41.83%EV -12.88%E -6.13%K -11.71%G +0.000%1.51I 66.23%NM 58.17%EV -11.64%E -7.71%K -22.83%G +0.000%13.8%2026-08-27 20:35
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 (1)

BookmakerLocalVisitMargin ▲Updated
Smarkets◎2.12I 47.17%NM 42.23%1.55I 64.52%NM 57.77%11.7%2026-08-27 23:50