Default modelInterquartile mean (Vetted List)

Marta Kostyuk v Liudmila Samsonova

2026-09-17 23:00 UTC — WTA Guadalajara Open

Head to Head

58 sportsbooks (18 in analysis )

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

Marta Kostyuk (Local)

Prediction 74.22%1.35fair odd
EV -1.28%
Edge -0.966%
Kelly -3.89%
Growth +0.000%

assuming max odds 1.33

Bookmakers’ predictions’ distribution
71.75%74.16%74.32%76.35%MIN.MEANMEDIANMAX.
Odds’ distribution
1.241.271.271.3380.65%78.58%78.74%75.19%MIN.MEANMEDIANMAX.

Liudmila Samsonova (Visit)

Prediction 25.78%3.88fair odd
EV +5.69%
Edge +1.39%
Kelly +1.84%
Growth +0.104%

assuming max odds 4.10

Bookmakers’ predictions’ distribution
23.65%25.84%25.68%28.25%MIN.MEANMEDIANMAX.
Odds’ distribution
3.203.663.704.1031.25%27.35%27.03%24.39%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Marta Kostyuk (Local): 74.22%; Liudmila Samsonova (Visit): 25.78%. For Liudmila Samsonova (Visit), that estimate is equivalent to fair decimal odds of 3.88. 2 bookmakers offer odds above that level; the best available odds are 4.10, producing a positive expected value of +5.69%.

Sportsbook Odds (58 sportsbooks)

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

BookmakerLocalVisit ▼MarginUpdated
Pinnacle🎯1.27I 78.74%NM 76.35%EV -5.74%E -4.52%K -21.25%G +0.000%4.10I 24.39%NM 23.65%EV +5.69%E +1.39%K +1.84%G +0.104%3.1%2026-09-17 07:41
Bovada🎯1.27I 78.74%NM 75.44%EV -5.74%E -4.52%K -21.25%G +0.000%3.90I 25.64%NM 24.56%EV +0.535%E +0.137%K +0.184%G +0.001%4.4%2026-09-17 08:02
Coolbet🎯1.27I 78.74%NM 74.95%EV -5.74%E -4.52%K -21.25%G +0.000%3.80I 26.32%NM 25.05%EV -2.04%E -0.538%K -0.730%G +0.000%5.1%2026-09-17 07:11
Bet Right🎯1.27I 78.74%NM 74.95%EV -5.74%E -4.52%K -21.25%G +0.000%3.80I 26.32%NM 25.05%EV -2.04%E -0.538%K -0.730%G +0.000%5.1%2026-09-17 07:45
Fanatics🎯1.27I 78.74%NM 74.95%EV -5.74%E -4.52%K -21.25%G +0.000%3.80I 26.32%NM 25.05%EV -2.04%E -0.538%K -0.730%G +0.000%5.1%2026-09-17 08:04
1xBet🎯1.29I 77.52%NM 74.51%EV -4.25%E -3.30%K -14.67%G +0.000%3.77I 26.53%NM 25.49%EV -2.82%E -0.747%K -1.02%G +0.000%4.0%2026-09-17 07:25
Betway🎯1.29I 77.52%NM 74.40%EV -4.25%E -3.30%K -14.67%G +0.000%3.75I 26.67%NM 25.60%EV -3.33%E -0.889%K -1.21%G +0.000%4.2%2026-09-17 07:40
Unibet (FR)🎯1.28I 78.13%NM 74.55%EV -5.00%E -3.90%K -17.84%G +0.000%3.75I 26.67%NM 25.45%EV -3.33%E -0.889%K -1.21%G +0.000%4.8%2026-09-17 08:20
Unibet (NL)🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Virgin Bet🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
LeoVegas (SE)🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
BetRivers🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
betPARX🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
ATG (SE)🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Bally Bet🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
LiveScore Bet🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Unibet🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
TABtouch🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Unibet (SE)🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:26
Grosvenor🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Casumo🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Svenska Spel🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:25
Hard Rock Bet🎯1.27I 78.74%NM 74.70%EV -5.74%E -4.52%K -21.25%G +0.000%3.75I 26.67%NM 25.30%EV -3.33%E -0.889%K -1.21%G +0.000%5.4%2026-09-17 07:45
PointsBet (AU)🎯1.26I 79.37%NM 74.85%EV -6.48%E -5.14%K -24.92%G +0.000%3.75I 26.67%NM 25.15%EV -3.33%E -0.889%K -1.21%G +0.000%6.0%2026-09-17 08:00
Betr (AU)🎯1.26I 79.37%NM 74.85%EV -6.48%E -5.14%K -24.92%G +0.000%3.75I 26.67%NM 25.15%EV -3.33%E -0.889%K -1.21%G +0.000%6.0%2026-09-17 08:00
betfred_uk🎯1.25I 80.00%NM 75.00%EV -7.22%E -5.78%K -28.89%G +0.000%3.75I 26.67%NM 25.00%EV -3.33%E -0.889%K -1.21%G +0.000%6.7%2026-09-17 06:50
Marathon Bet🎯1.27I 78.74%NM 74.55%EV -5.74%E -4.52%K -21.25%G +0.000%3.72I 26.88%NM 25.45%EV -4.11%E -1.10%K -1.51%G +0.000%5.6%2026-09-17 07:25
FanDuel🎯1.27I 78.74%NM 74.45%EV -5.74%E -4.52%K -21.25%G +0.000%3.70I 27.03%NM 25.55%EV -4.62%E -1.25%K -1.71%G +0.000%5.8%2026-09-17 07:36
BetMGM🎯1.27I 78.74%NM 74.45%EV -5.74%E -4.52%K -21.25%G +0.000%3.70I 27.03%NM 25.55%EV -4.62%E -1.25%K -1.71%G +0.000%5.8%2026-09-17 07:14
SportsBet🎯1.25I 80.00%NM 74.75%EV -7.22%E -5.78%K -28.89%G +0.000%3.70I 27.03%NM 25.25%EV -4.62%E -1.25%K -1.71%G +0.000%7.0%2026-09-17 04:35
GTbets🎯1.33I 75.19%NM 73.19%EV -1.28%E -0.966%K -3.89%G +0.000%3.63I 27.55%NM 26.81%EV -6.43%E -1.77%K -2.44%G +0.000%2.7%2026-09-17 07:25
DraftKings🎯1.30I 76.92%NM 73.52%EV -3.51%E -2.70%K -11.71%G +0.000%3.61I 27.70%NM 26.48%EV -6.94%E -1.92%K -2.66%G +0.000%4.6%2026-09-17 06:50
BoyleSports🎯1.30I 76.92%NM 73.47%EV -3.51%E -2.70%K -11.71%G +0.000%3.60I 27.78%NM 26.53%EV -7.20%E -2.00%K -2.77%G +0.000%4.7%2026-09-17 08:20
888sport🎯1.29I 77.52%NM 73.62%EV -4.25%E -3.30%K -14.67%G +0.000%3.60I 27.78%NM 26.38%EV -7.20%E -2.00%K -2.77%G +0.000%5.3%2026-09-17 07:31
William Hill🎯1.29I 77.52%NM 73.62%EV -4.25%E -3.30%K -14.67%G +0.000%3.60I 27.78%NM 26.38%EV -7.20%E -2.00%K -2.77%G +0.000%5.3%2026-09-17 07:30
Mr Green (SE)🎯1.29I 77.52%NM 73.62%EV -4.25%E -3.30%K -14.67%G +0.000%3.60I 27.78%NM 26.38%EV -7.20%E -2.00%K -2.77%G +0.000%5.3%2026-09-17 07:30
888sport (SE)🎯1.29I 77.52%NM 73.62%EV -4.25%E -3.30%K -14.67%G +0.000%3.60I 27.78%NM 26.38%EV -7.20%E -2.00%K -2.77%G +0.000%5.3%2026-09-17 07:30
PlayUp🎯1.28I 78.13%NM 73.77%EV -5.00%E -3.90%K -17.84%G +0.000%3.60I 27.78%NM 26.23%EV -7.20%E -2.00%K -2.77%G +0.000%5.9%2026-09-17 07:10
theScore Bet🎯1.26I 79.37%NM 74.07%EV -6.48%E -5.14%K -24.92%G +0.000%3.60I 27.78%NM 25.93%EV -7.20%E -2.00%K -2.77%G +0.000%7.1%2026-09-17 06:50
Tipico (DE)🎯1.25I 80.00%NM 74.23%EV -7.22%E -5.78%K -28.89%G +0.000%3.60I 27.78%NM 25.77%EV -7.20%E -2.00%K -2.77%G +0.000%7.8%2026-09-17 08:20
betano_uk🎯1.25I 80.00%NM 74.23%EV -7.22%E -5.78%K -28.89%G +0.000%3.60I 27.78%NM 25.77%EV -7.20%E -2.00%K -2.77%G +0.000%7.8%2026-09-17 08:05
Bet Victor🎯1.25I 80.00%NM 74.23%EV -7.22%E -5.78%K -28.89%G +0.000%3.60I 27.78%NM 25.77%EV -7.20%E -2.00%K -2.77%G +0.000%7.8%2026-09-17 08:05
Coral🎯1.25I 80.00%NM 74.23%EV -7.22%E -5.78%K -28.89%G +0.000%3.60I 27.78%NM 25.77%EV -7.20%E -2.00%K -2.77%G +0.000%7.8%2026-09-17 07:15
Ladbrokes (UK)🎯1.25I 80.00%NM 74.23%EV -7.22%E -5.78%K -28.89%G +0.000%3.60I 27.78%NM 25.77%EV -7.20%E -2.00%K -2.77%G +0.000%7.8%2026-09-17 07:16
PMU (FR)🎯1.24I 80.65%NM 74.38%EV -7.96%E -6.42%K -33.19%G +0.000%3.60I 27.78%NM 25.62%EV -7.20%E -2.00%K -2.77%G +0.000%8.4%2026-09-17 07:25
Winamax (DE)🎯1.30I 76.92%NM 73.20%EV -3.51%E -2.70%K -11.71%G +0.000%3.55I 28.17%NM 26.80%EV -8.49%E -2.39%K -3.33%G +0.000%5.1%2026-09-17 08:20
Betclic (FR)🎯1.29I 77.52%NM 73.35%EV -4.25%E -3.30%K -14.67%G +0.000%3.55I 28.17%NM 26.65%EV -8.49%E -2.39%K -3.33%G +0.000%5.7%2026-09-17 08:20
Unibet (UK)🎯1.29I 77.52%NM 73.07%EV -4.25%E -3.30%K -14.67%G +0.000%3.50I 28.57%NM 26.93%EV -9.78%E -2.79%K -3.91%G +0.000%6.1%2026-09-17 08:21
NordicBet🎯1.29I 77.52%NM 73.07%EV -4.25%E -3.30%K -14.67%G +0.000%3.50I 28.57%NM 26.93%EV -9.78%E -2.79%K -3.91%G +0.000%6.1%2026-09-17 08:21
Betfair Sportsbook (UK)🎯1.29I 77.52%NM 73.07%EV -4.25%E -3.30%K -14.67%G +0.000%3.50I 28.57%NM 26.93%EV -9.78%E -2.79%K -3.91%G +0.000%6.1%2026-09-17 04:35
TAB🎯1.28I 78.13%NM 73.22%EV -5.00%E -3.90%K -17.84%G +0.000%3.50I 28.57%NM 26.78%EV -9.78%E -2.79%K -3.91%G +0.000%6.7%2026-09-17 07:31
Sky Bet🎯1.25I 80.00%NM 73.68%EV -7.22%E -5.78%K -28.89%G +0.000%3.50I 28.57%NM 26.32%EV -9.78%E -2.79%K -3.91%G +0.000%8.6%2026-09-17 04:30
Paddy Power🎯1.25I 80.00%NM 73.68%EV -7.22%E -5.78%K -28.89%G +0.000%3.50I 28.57%NM 26.32%EV -9.78%E -2.79%K -3.91%G +0.000%8.6%2026-09-17 04:30
Neds🎯1.28I 78.13%NM 72.94%EV -5.00%E -3.90%K -17.84%G +0.000%3.45I 28.99%NM 27.06%EV -11.07%E -3.21%K -4.52%G +0.000%7.1%2026-09-17 07:20
Ladbrokes (AU)🎯1.28I 78.13%NM 72.94%EV -5.00%E -3.90%K -17.84%G +0.000%3.45I 28.99%NM 27.06%EV -11.07%E -3.21%K -4.52%G +0.000%7.1%2026-09-17 07:16
LeoVegas🎯1.26I 79.37%NM 73.25%EV -6.48%E -5.14%K -24.92%G +0.000%3.45I 28.99%NM 26.75%EV -11.07%E -3.21%K -4.52%G +0.000%8.4%2026-09-17 08:21
ReBet🎯1.28I 78.13%NM 72.41%EV -5.00%E -3.90%K -17.84%G +0.000%3.36I 29.76%NM 27.59%EV -13.39%E -3.98%K -5.67%G +0.000%7.9%2026-09-17 08:20
Winamax (FR)🎯1.26I 79.37%NM 71.75%EV -6.48%E -5.14%K -24.92%G +0.000%3.20I 31.25%NM 28.25%EV -17.51%E -5.47%K -7.96%G +0.000%10.6%2026-09-17 08:21
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
Matchbook1.29I 77.52%NM 76.50%4.20I 23.81%NM 23.50%1.3%2026-09-17 08:11
Betfair Exchange (UK)1.29I 77.52%NM 76.07%4.10I 24.39%NM 23.93%1.9%2026-09-17 08:16
Betfair Exchange (EU)1.29I 77.52%NM 76.07%4.10I 24.39%NM 23.93%1.9%2026-09-17 08:16
Betfair Exchange (AU)1.29I 77.52%NM 76.07%4.10I 24.39%NM 23.93%1.9%2026-09-17 08:16
Novig1.30I 76.92%NM 75.47%4.00I 25.00%NM 24.53%1.9%2026-09-17 08:16
Smarkets1.27I 78.74%NM 76.35%4.10I 24.39%NM 23.65%3.1%2026-09-17 08:15
Arbitrage (1 combination) +0.42%GTbets 1.33 (75.5%) / Pinnacle 4.10 (24.5%)Show details
Marta Kostyuk (Local)Liudmila Samsonova (Visit)Margin
GTbets🎯 1.33 (75.5%)Pinnacle🎯 4.10 (24.5%)+0.424%