The School of Tennis Oddsodds.tennis
Default modelInterquartile mean (Vetted List)
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Alina Korneeva v Julia Riera

Kickoff: 2026-05-21 14:00 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

10 sportsbooks (5 in analysis )

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

Alina Korneeva (Local)

Prediction 56.73%1.76fair odd
EV -3.56%
Edge -2.10%
Kelly -5.09%
Growth +0.000%

assuming max odds 1.70

Bookmakers’ predictions’ distribution
55.47%56.76%56.76%58.36%MIN.MEANMEDIANMAX.
Odds’ distribution
1.571.651.651.7063.69%60.75%60.61%58.82%MIN.MEANMEDIANMAX.

Julia Riera (Visit)

Prediction 43.27%2.31fair odd
EV -2.21%
Edge -0.976%
Kelly -1.75%
Growth +0.000%

assuming max odds 2.26

Bookmakers’ predictions’ distribution
41.64%43.24%43.24%44.53%MIN.MEANMEDIANMAX.
Odds’ distribution
2.082.162.152.2648.08%46.34%46.51%44.25%MIN.MEANMEDIANMAX.

At the last prices before kickoff, Interquartile mean (Vetted List) estimated these probabilities for Head to Head: Alina Korneeva (Local): 56.73%; Julia Riera (Visit): 43.27%. For Julia Riera (Visit), that estimate was equivalent to fair decimal odds of 2.31. No eligible bookmaker offered closing odds above that level: the best were 2.26, with an expected value of -2.21%; they did not produce positive expected value.

Sportsbook Odds (10 sportsbooks)

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BookmakerLocal ▼VisitMarginUpdated
PlayUp🎯1.70I 58.82%NM 55.84%EV -3.56%E -2.10%K -5.09%G +0.000%2.15I 46.51%NM 44.16%EV -6.97%E -3.24%K -6.06%G +0.000%5.3%2026-05-21 13:28
Pinnacle🎯1.69I 59.17%NM 57.00%EV -4.13%E -2.44%K -5.98%G +0.000%2.24I 44.64%NM 43.00%EV -3.07%E -1.37%K -2.48%G +0.000%3.8%2026-05-21 13:10
NordicBet🎯1.67I 59.88%NM 55.47%EV -5.26%E -3.15%K -7.86%G +0.000%2.08I 48.08%NM 44.53%EV -9.99%E -4.81%K -9.25%G +0.000%8.0%2026-05-21 13:30
Marathon Bet🎯1.66I 60.24%NM 56.43%EV -5.83%E -3.51%K -8.84%G +0.000%2.15I 46.51%NM 43.57%EV -6.97%E -3.24%K -6.06%G +0.000%6.8%2026-05-21 13:26
GTbets🎯1.65I 60.61%NM 57.80%EV -6.40%E -3.88%K -9.84%G +0.000%2.26I 44.25%NM 42.20%EV -2.21%E -0.976%K -1.75%G +0.000%4.9%2026-05-21 13:10
Unibet (FR)🎯1.65I 60.61%NM 56.00%EV -6.40%E -3.88%K -9.84%G +0.000%2.10I 47.62%NM 44.00%EV -9.13%E -4.35%K -8.30%G +0.000%8.2%2026-05-21 13:10
Betway🎯1.65I 60.61%NM 56.00%EV -6.40%E -3.88%K -9.84%G +0.000%2.10I 47.62%NM 44.00%EV -9.13%E -4.35%K -8.30%G +0.000%8.2%2026-05-21 13:30
theScore Bet🎯1.62I 61.73%NM 57.59%EV -8.10%E -5.00%K -13.06%G +0.000%2.20I 45.45%NM 42.41%EV -4.80%E -2.18%K -4.00%G +0.000%7.2%2026-05-21 13:30
NetBet (FR)🎯1.60I 62.50%NM 56.76%EV -9.23%E -5.77%K -15.39%G +0.000%2.10I 47.62%NM 43.24%EV -9.13%E -4.35%K -8.30%G +0.000%10.1%2026-05-21 13:19
Fliff🎯1.57I 63.69%NM 58.36%EV -10.94%E -6.97%K -19.19%G +0.000%2.20I 45.45%NM 41.64%EV -4.80%E -2.18%K -4.00%G +0.000%9.1%2026-05-21 13:30
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 (2)

BookmakerLocalVisitMargin ▲Updated
Novig◎1.69I 59.17%NM 59.08%2.44I 40.98%NM 40.92%0.2%2026-05-21 13:30
Smarkets◎1.73I 57.80%NM 56.42%2.24I 44.64%NM 43.58%2.4%2026-05-21 13:20