Default modelInterquartile mean (Vetted List)

Kayla Day v Liudmila Samsonova

2026-09-16 19:00 UTC — WTA Guadalajara Open

Head to Head

35 sportsbooks (15 in analysis )

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

Kayla Day (Local)

Prediction 29.60%3.38fair odd
EV -2.04%
Edge -0.615%
Kelly -0.882%
Growth +0.000%

assuming max odds 3.31

Bookmakers’ predictions’ distribution
28.60%29.66%29.82%32.56%MIN.MEANMEDIANMAX.
Odds’ distribution
2.853.153.203.3135.09%31.75%31.25%30.21%MIN.MEANMEDIANMAX.

Liudmila Samsonova (Visit)

Prediction 70.40%1.42fair odd
EV -1.43%
Edge -1.02%
Kelly -3.59%
Growth +0.000%

assuming max odds 1.40

Bookmakers’ predictions’ distribution
67.44%70.34%70.18%71.40%MIN.MEANMEDIANMAX.
Odds’ distribution
1.301.331.331.4076.92%74.93%75.19%71.43%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Kayla Day (Local): 29.60%; Liudmila Samsonova (Visit): 70.40%. For Liudmila Samsonova (Visit), that estimate is equivalent to fair decimal odds of 1.42. No eligible bookmaker offers odds above that level: the best available odds are 1.40, with an expected value of -1.43%; they do not produce positive expected value.

Sportsbook Odds (35 sportsbooks)

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

BookmakerLocal ▼VisitMarginUpdated
1xBet🎯3.31I 30.21%NM 28.97%EV -2.04%E -0.615%K -0.882%G +0.000%1.35I 74.07%NM 71.03%EV -4.95%E -3.67%K -14.16%G +0.000%4.3%2026-09-15 07:05
Fanatics🎯3.30I 30.30%NM 28.73%EV -2.33%E -0.707%K -1.01%G +0.000%1.33I 75.19%NM 71.27%EV -6.36%E -4.78%K -19.28%G +0.000%5.5%2026-09-15 05:31
Betway🎯3.30I 30.30%NM 28.73%EV -2.33%E -0.707%K -1.01%G +0.000%1.33I 75.19%NM 71.27%EV -6.36%E -4.78%K -19.28%G +0.000%5.5%2026-09-15 07:10
FanDuel🎯3.30I 30.30%NM 28.73%EV -2.33%E -0.707%K -1.01%G +0.000%1.33I 75.19%NM 71.27%EV -6.36%E -4.78%K -19.28%G +0.000%5.5%2026-09-15 05:20
DraftKings🎯3.29I 30.40%NM 28.94%EV -2.63%E -0.799%K -1.15%G +0.000%1.34I 74.63%NM 71.06%EV -5.66%E -4.22%K -16.64%G +0.000%5.0%2026-09-15 05:15
SportsBet🎯3.27I 30.58%NM 28.60%EV -3.22%E -0.985%K -1.42%G +0.000%1.31I 76.34%NM 71.40%EV -7.77%E -5.93%K -25.07%G +0.000%6.9%2026-09-15 05:15
Marathon Bet🎯3.26I 30.67%NM 28.98%EV -3.52%E -1.08%K -1.56%G +0.000%1.33I 75.19%NM 71.02%EV -6.36%E -4.78%K -19.28%G +0.000%5.9%2026-09-15 07:10
Bovada🎯3.25I 30.77%NM 29.35%EV -3.81%E -1.17%K -1.69%G +0.000%1.35I 74.07%NM 70.65%EV -4.95%E -3.67%K -14.16%G +0.000%4.8%2026-09-15 05:19
Bet Right🎯3.25I 30.77%NM 29.19%EV -3.81%E -1.17%K -1.69%G +0.000%1.34I 74.63%NM 70.81%EV -5.66%E -4.22%K -16.64%G +0.000%5.4%2026-09-15 05:20
PointsBet (AU)🎯3.25I 30.77%NM 29.04%EV -3.81%E -1.17%K -1.69%G +0.000%1.33I 75.19%NM 70.96%EV -6.36%E -4.78%K -19.28%G +0.000%6.0%2026-09-15 05:20
betfred_uk🎯3.25I 30.77%NM 29.04%EV -3.81%E -1.17%K -1.69%G +0.000%1.33I 75.19%NM 70.96%EV -6.36%E -4.78%K -19.28%G +0.000%6.0%2026-09-15 05:15
Betr (AU)🎯3.25I 30.77%NM 29.04%EV -3.81%E -1.17%K -1.69%G +0.000%1.33I 75.19%NM 70.96%EV -6.36%E -4.78%K -19.28%G +0.000%6.0%2026-09-15 05:25
Betfair Sportsbook (UK)🎯3.25I 30.77%NM 29.04%EV -3.81%E -1.17%K -1.69%G +0.000%1.33I 75.19%NM 70.96%EV -6.36%E -4.78%K -19.28%G +0.000%6.0%2026-09-15 05:44
GTbets🎯3.21I 31.15%NM 29.61%EV -5.00%E -1.56%K -2.26%G +0.000%1.35I 74.07%NM 70.39%EV -4.95%E -3.67%K -14.16%G +0.000%5.2%2026-09-15 05:40
BoyleSports🎯3.20I 31.25%NM 29.82%EV -5.29%E -1.65%K -2.41%G +0.000%1.36I 73.53%NM 70.18%EV -4.25%E -3.13%K -11.81%G +0.000%4.8%2026-09-15 05:20
Winamax (DE)🎯3.20I 31.25%NM 29.67%EV -5.29%E -1.65%K -2.41%G +0.000%1.35I 74.07%NM 70.33%EV -4.95%E -3.67%K -14.16%G +0.000%5.3%2026-09-15 05:15
Sky Bet🎯3.20I 31.25%NM 28.89%EV -5.29%E -1.65%K -2.41%G +0.000%1.30I 76.92%NM 71.11%EV -8.48%E -6.52%K -28.25%G +0.000%8.2%2026-09-15 05:15
Paddy Power🎯3.20I 31.25%NM 28.89%EV -5.29%E -1.65%K -2.41%G +0.000%1.30I 76.92%NM 71.11%EV -8.48%E -6.52%K -28.25%G +0.000%8.2%2026-09-15 05:20
Tipico (DE)🎯3.20I 31.25%NM 28.89%EV -5.29%E -1.65%K -2.41%G +0.000%1.30I 76.92%NM 71.11%EV -8.48%E -6.52%K -28.25%G +0.000%8.2%2026-09-15 06:45
Betsson🎯3.15I 31.75%NM 30.00%EV -6.77%E -2.15%K -3.15%G +0.000%1.35I 74.07%NM 70.00%EV -4.95%E -3.67%K -14.16%G +0.000%5.8%2026-09-15 05:15
NordicBet🎯3.15I 31.75%NM 30.00%EV -6.77%E -2.15%K -3.15%G +0.000%1.35I 74.07%NM 70.00%EV -4.95%E -3.67%K -14.16%G +0.000%5.8%2026-09-15 05:15
888sport🎯3.10I 32.26%NM 30.49%EV -8.25%E -2.66%K -3.93%G +0.000%1.36I 73.53%NM 69.51%EV -4.25%E -3.13%K -11.81%G +0.000%5.8%2026-09-15 05:15
William Hill🎯3.10I 32.26%NM 30.49%EV -8.25%E -2.66%K -3.93%G +0.000%1.36I 73.53%NM 69.51%EV -4.25%E -3.13%K -11.81%G +0.000%5.8%2026-09-15 05:15
Mr Green (SE)🎯3.10I 32.26%NM 30.49%EV -8.25%E -2.66%K -3.93%G +0.000%1.36I 73.53%NM 69.51%EV -4.25%E -3.13%K -11.81%G +0.000%5.8%2026-09-15 05:26
888sport (SE)🎯3.10I 32.26%NM 30.49%EV -8.25%E -2.66%K -3.93%G +0.000%1.36I 73.53%NM 69.51%EV -4.25%E -3.13%K -11.81%G +0.000%5.8%2026-09-15 05:25
Unibet (UK)🎯3.10I 32.26%NM 30.18%EV -8.25%E -2.66%K -3.93%G +0.000%1.34I 74.63%NM 69.82%EV -5.66%E -4.22%K -16.64%G +0.000%6.9%2026-09-15 05:15
theScore Bet🎯3.10I 32.26%NM 30.02%EV -8.25%E -2.66%K -3.93%G +0.000%1.33I 75.19%NM 69.98%EV -6.36%E -4.78%K -19.28%G +0.000%7.4%2026-09-15 05:15
LeoVegas🎯3.05I 32.79%NM 30.37%EV -9.73%E -3.19%K -4.75%G +0.000%1.33I 75.19%NM 69.63%EV -6.36%E -4.78%K -19.28%G +0.000%8.0%2026-09-15 05:15
betano_uk🎯3.00I 33.33%NM 30.72%EV -11.21%E -3.74%K -5.61%G +0.000%1.33I 75.19%NM 69.28%EV -6.36%E -4.78%K -19.28%G +0.000%8.5%2026-09-15 05:20
Bet Victor🎯3.00I 33.33%NM 30.72%EV -11.21%E -3.74%K -5.61%G +0.000%1.33I 75.19%NM 69.28%EV -6.36%E -4.78%K -19.28%G +0.000%8.5%2026-09-15 06:40
Betclic (FR)🎯2.95I 33.90%NM 30.75%EV -12.69%E -4.30%K -6.51%G +0.000%1.31I 76.34%NM 69.25%EV -7.77%E -5.93%K -25.07%G +0.000%10.2%2026-09-15 05:16
ReBet🎯2.95I 33.90%NM 30.75%EV -12.69%E -4.30%K -6.51%G +0.000%1.31I 76.34%NM 69.25%EV -7.77%E -5.93%K -25.07%G +0.000%10.2%2026-09-15 05:15
PlayUp🎯2.90I 34.48%NM 32.56%EV -14.17%E -4.89%K -7.46%G +0.000%1.40I 71.43%NM 67.44%EV -1.43%E -1.02%K -3.59%G +0.000%5.9%2026-09-15 07:00
Winamax (FR)🎯2.90I 34.48%NM 30.95%EV -14.17%E -4.89%K -7.46%G +0.000%1.30I 76.92%NM 69.05%EV -8.48%E -6.52%K -28.25%G +0.000%11.4%2026-09-15 05:15
Unibet (FR)🎯2.85I 35.09%NM 31.33%EV -15.65%E -5.49%K -8.46%G +0.000%1.30I 76.92%NM 68.67%EV -8.48%E -6.52%K -28.25%G +0.000%12.0%2026-09-15 05:15
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 (6)

BookmakerLocalVisitMargin ▲Updated
Smarkets2.86I 34.97%NM 31.25%1.30I 76.92%NM 68.75%11.9%2026-09-15 05:15
Betfair Exchange (EU)2.60I 38.46%NM 34.34%1.36I 73.53%NM 65.66%12.0%2026-09-15 06:51
Betfair Exchange (UK)2.60I 38.46%NM 34.34%1.36I 73.53%NM 65.66%12.0%2026-09-15 06:51
Betfair Exchange (AU)2.60I 38.46%NM 34.34%1.36I 73.53%NM 65.66%12.0%2026-09-15 06:51
Matchbook2.36I 42.37%NM 35.69%1.31I 76.34%NM 64.31%18.7%2026-09-15 06:51
Novig3.17I 31.55%NM 23.98%1.00I 100.00%NM 76.02%31.5%2026-09-15 06:00