The School of Odds

Janice Tjen v Rebecca Sramkova

2026-07-27 20:00 UTC — WTA Washington Open

Head to Head

33 sportsbooks (10 in analysis )

Estimated chance of each outcome, according to the model: IQM

Janice Tjen (Local)

Prediction 65.79%1.52fair odd
EV -2.63%
Edge -1.77%
Kelly -5.47%
Growth +0.000%

assuming max odds 1.48

Bookmakers’ predictions’ distribution
63.73%65.80%65.71%66.74%MINMEANMEDIANMAX
Odds’ distribution
1.401.441.431.4871.43%69.59%69.93%67.57%MINMEANMEDIANMAX

Rebecca Sramkova (Visit)

Prediction 34.21%2.92fair odd
EV -0.460%
Edge -0.158%
Kelly -0.241%
Growth +0.000%

assuming max odds 2.91

Bookmakers’ predictions’ distribution
33.26%34.20%34.29%36.27%MINMEANMEDIANMAX
Odds’ distribution
2.602.762.802.9138.46%36.21%35.71%34.36%MINMEANMEDIANMAX

Sportsbook Odds (33 sportsbooks)

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

BookmakerLocal ▼VisitMarginUpdated
Neds1.48I 67.57%NM 63.73%EV -2.63%E -1.77%K -5.47%G +0.000%2.60I 38.46%NM 36.27%EV -11.06%E -4.26%K -6.91%G +0.000%6.0%2026-07-27 06:30
Ladbrokes (AU)1.48I 67.57%NM 63.73%EV -2.63%E -1.77%K -5.47%G +0.000%2.60I 38.46%NM 36.27%EV -11.06%E -4.26%K -6.91%G +0.000%6.0%2026-07-27 06:30
DraftKings1.46I 68.49%NM 65.32%EV -3.94%E -2.70%K -8.57%G +0.000%2.75I 36.36%NM 34.68%EV -5.93%E -2.16%K -3.39%G +0.000%4.9%2026-07-27 07:20
Pinnacle1.45I 68.97%NM 66.74%EV -4.60%E -3.17%K -10.22%G +0.000%2.91I 34.36%NM 33.26%EV -0.460%E -0.158%K -0.241%G +0.000%3.3%2026-07-27 07:16
Bovada1.45I 68.97%NM 65.88%EV -4.60%E -3.17%K -10.22%G +0.000%2.80I 35.71%NM 34.12%EV -4.22%E -1.51%K -2.35%G +0.000%4.7%2026-07-27 07:15
Bet Right1.45I 68.97%NM 65.48%EV -4.60%E -3.17%K -10.22%G +0.000%2.75I 36.36%NM 34.52%EV -5.93%E -2.16%K -3.39%G +0.000%5.3%2026-07-27 07:20
Betway1.45I 68.97%NM 65.48%EV -4.60%E -3.17%K -10.22%G +0.000%2.75I 36.36%NM 34.52%EV -5.93%E -2.16%K -3.39%G +0.000%5.3%2026-07-27 07:15
PlayUp1.45I 68.97%NM 65.06%EV -4.60%E -3.17%K -10.22%G +0.000%2.70I 37.04%NM 34.94%EV -7.64%E -2.83%K -4.50%G +0.000%6.0%2026-07-27 06:40
Unibet1.44I 69.44%NM 66.04%EV -5.26%E -3.65%K -11.95%G +0.000%2.80I 35.71%NM 33.96%EV -4.22%E -1.51%K -2.35%G +0.000%5.2%2026-07-27 06:34
FanDuel1.44I 69.44%NM 66.04%EV -5.26%E -3.65%K -11.95%G +0.000%2.80I 35.71%NM 33.96%EV -4.22%E -1.51%K -2.35%G +0.000%5.2%2026-07-27 07:15
Hard Rock Bet1.44I 69.44%NM 66.04%EV -5.26%E -3.65%K -11.95%G +0.000%2.80I 35.71%NM 33.96%EV -4.22%E -1.51%K -2.35%G +0.000%5.2%2026-07-27 06:35
Betfair Sportsbook (UK)1.44I 69.44%NM 65.63%EV -5.26%E -3.65%K -11.95%G +0.000%2.75I 36.36%NM 34.37%EV -5.93%E -2.16%K -3.39%G +0.000%5.8%2026-07-27 06:50
888sport1.44I 69.44%NM 65.63%EV -5.26%E -3.65%K -11.95%G +0.000%2.75I 36.36%NM 34.37%EV -5.93%E -2.16%K -3.39%G +0.000%5.8%2026-07-27 06:40
Betr (AU)1.44I 69.44%NM 65.63%EV -5.26%E -3.65%K -11.95%G +0.000%2.75I 36.36%NM 34.37%EV -5.93%E -2.16%K -3.39%G +0.000%5.8%2026-07-27 07:20
BoyleSports1.44I 69.44%NM 65.63%EV -5.26%E -3.65%K -11.95%G +0.000%2.75I 36.36%NM 34.37%EV -5.93%E -2.16%K -3.39%G +0.000%5.8%2026-07-27 06:45
BetRivers1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Grosvenor1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Unibet (SE)1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Casumo1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Unibet (NL)1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:34
LeoVegas (SE)1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:34
TABtouch1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:34
betPARX1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Svenska Spel1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Bally Bet1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
ATG (SE)1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 06:35
Fanatics1.43I 69.93%NM 66.19%EV -5.92%E -4.14%K -13.76%G +0.000%2.80I 35.71%NM 33.81%EV -4.22%E -1.51%K -2.35%G +0.000%5.6%2026-07-27 07:19
PointsBet (AU)1.43I 69.93%NM 65.79%EV -5.92%E -4.14%K -13.76%G +0.000%2.75I 36.36%NM 34.21%EV -5.93%E -2.16%K -3.39%G +0.000%6.3%2026-07-27 06:45
ReBet1.43I 69.93%NM 64.95%EV -5.92%E -4.14%K -13.76%G +0.000%2.65I 37.74%NM 35.05%EV -9.35%E -3.53%K -5.67%G +0.000%7.7%2026-07-27 07:15
theScore Bet1.43I 69.93%NM 64.95%EV -5.92%E -4.14%K -13.76%G +0.000%2.65I 37.74%NM 35.05%EV -9.35%E -3.53%K -5.67%G +0.000%7.7%2026-07-27 07:20
SportsBet1.41I 70.92%NM 66.27%EV -7.23%E -5.13%K -17.64%G +0.000%2.77I 36.10%NM 33.73%EV -5.25%E -1.89%K -2.97%G +0.000%7.0%2026-07-27 07:14
PMU (FR)1.41I 70.92%NM 65.69%EV -7.23%E -5.13%K -17.64%G +0.000%2.70I 37.04%NM 34.31%EV -7.64%E -2.83%K -4.50%G +0.000%8.0%2026-07-27 06:35
Paddy Power1.40I 71.43%NM 66.27%EV -7.89%E -5.63%K -19.72%G +0.000%2.75I 36.36%NM 33.73%EV -5.93%E -2.16%K -3.39%G +0.000%7.8%2026-07-27 06:40
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 (EU)1.53I 65.36%NM 64.17%2.74I 36.50%NM 35.83%1.9%2026-07-27 07:20
Betfair Exchange (UK)1.53I 65.36%NM 64.17%2.74I 36.50%NM 35.83%1.9%2026-07-27 07:20
Betfair Exchange (AU)1.53I 65.36%NM 64.17%2.74I 36.50%NM 35.83%1.9%2026-07-27 07:20
ProphetX1.51I 66.23%NM 64.30%2.72I 36.76%NM 35.70%3.0%2026-07-27 07:20
Novig1.47I 68.03%NM 66.05%2.86I 34.97%NM 33.95%3.0%2026-07-27 07:20