The School of Tennis Oddsodds.tennis
Default modelInterquartile mean (Vetted List)
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Heather Watson v Mayar Sherif

Kickoff: 2026-06-23 16:00 UTC

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

12 sportsbooks (6 in analysis )

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

Heather Watson (Local)

Prediction 63.14%1.58fair odd
EV -3.39%
Edge -2.22%
Kelly -6.40%
Growth +0.000%

assuming max odds 1.53

Bookmakers’ predictions’ distribution
60.87%62.94%63.18%64.20%MIN.MEANMEDIANMAX.
Odds’ distribution
1.431.481.481.5369.93%67.42%67.34%65.36%MIN.MEANMEDIANMAX.

Mayar Sherif (Visit)

Prediction 36.86%2.71fair odd
EV -4.17%
Edge -1.60%
Kelly -2.61%
Growth +0.000%

assuming max odds 2.60

Bookmakers’ predictions’ distribution
35.80%37.06%36.82%39.13%MIN.MEANMEDIANMAX.
Odds’ distribution
2.382.532.532.6042.02%39.46%39.53%38.46%MIN.MEANMEDIANMAX.

At the last prices before kickoff, Interquartile mean (Vetted List) estimated these probabilities for Head to Head: Heather Watson (Local): 63.14%; Mayar Sherif (Visit): 36.86%. For Heather Watson (Local), that estimate was equivalent to fair decimal odds of 1.58. No eligible bookmaker offered closing odds above that level: the best were 1.53, with an expected value of -3.39%; they did not produce positive expected value.

Sportsbook Odds (12 sportsbooks)

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BookmakerLocal ▼VisitMarginUpdated
Pinnacle🎯1.53I 65.36%NM 62.95%EV -3.39%E -2.22%K -6.40%G +0.000%2.60I 38.46%NM 37.05%EV -4.17%E -1.60%K -2.61%G +0.000%3.8%2026-06-23 15:20
BoyleSports🎯1.53I 65.36%NM 60.87%EV -3.39%E -2.22%K -6.40%G +0.000%2.38I 42.02%NM 39.13%EV -12.28%E -5.16%K -8.90%G +0.000%7.4%2026-06-23 15:20
Betway🎯1.50I 66.67%NM 63.41%EV -5.29%E -3.52%K -10.57%G +0.000%2.60I 38.46%NM 36.59%EV -4.17%E -1.60%K -2.61%G +0.000%5.1%2026-06-23 15:20
Paddy Power🎯1.50I 66.67%NM 62.50%EV -5.29%E -3.52%K -10.57%G +0.000%2.50I 40.00%NM 37.50%EV -7.86%E -3.14%K -5.24%G +0.000%6.7%2026-06-23 15:20
Marathon Bet🎯1.50I 66.67%NM 62.41%EV -5.29%E -3.52%K -10.57%G +0.000%2.49I 40.16%NM 37.59%EV -8.23%E -3.30%K -5.52%G +0.000%6.8%2026-06-23 15:20
NordicBet🎯1.49I 67.11%NM 63.03%EV -5.92%E -3.97%K -12.08%G +0.000%2.54I 39.37%NM 36.97%EV -6.38%E -2.51%K -4.14%G +0.000%6.5%2026-06-23 15:20
PlayUp🎯1.48I 67.57%NM 63.73%EV -6.55%E -4.42%K -13.64%G +0.000%2.60I 38.46%NM 36.27%EV -4.17%E -1.60%K -2.61%G +0.000%6.0%2026-06-23 03:29
Unibet (FR)🎯1.47I 68.03%NM 62.97%EV -7.18%E -4.88%K -15.28%G +0.000%2.50I 40.00%NM 37.03%EV -7.86%E -3.14%K -5.24%G +0.000%8.0%2026-06-23 15:20
MyBookie.ag🎯1.47I 68.03%NM 62.88%EV -7.18%E -4.88%K -15.28%G +0.000%2.49I 40.16%NM 37.12%EV -8.23%E -3.30%K -5.52%G +0.000%8.2%2026-06-23 12:29
theScore Bet🎯1.45I 68.97%NM 64.20%EV -8.44%E -5.82%K -18.76%G +0.000%2.60I 38.46%NM 35.80%EV -4.17%E -1.60%K -2.61%G +0.000%7.4%2026-06-23 10:20
GTbets🎯1.45I 68.97%NM 64.11%EV -8.44%E -5.82%K -18.76%G +0.000%2.59I 38.61%NM 35.89%EV -4.54%E -1.75%K -2.86%G +0.000%7.6%2026-06-23 10:20
NetBet (FR)🎯1.43I 69.93%NM 63.80%EV -9.71%E -6.79%K -22.57%G +0.000%2.52I 39.68%NM 36.20%EV -7.12%E -2.83%K -4.68%G +0.000%9.6%2026-06-23 10:19
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 (3)

BookmakerLocalVisitMargin ▲Updated
Betfair Exchange (UK)◎1.56I 64.10%NM 64.06%2.78I 35.97%NM 35.94%0.1%2026-06-23 15:20
Betfair Exchange (AU)◎1.56I 64.10%NM 64.06%2.78I 35.97%NM 35.94%0.1%2026-06-23 15:20
Betfair Exchange (EU)◎1.54I 64.94%NM 64.35%2.78I 35.97%NM 35.65%0.9%2026-06-23 15:20