Default modelInterquartile mean (Vetted List)

Marta Kostyuk v Madison Keys

2026-08-07 19:00 UTC — WTA Canadian Open

Head to Head

50 sportsbooks (18 in analysis )

55%

45%

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

Marta Kostyuk (Local)

Prediction 55.43%1.80fair odd

EV +0.336%

Edge +0.186%

Kelly +0.415%

Growth +0.001%

assuming max odds 1.81

Bookmakers’ predictions’ distribution

52.42%55.30%55.41%56.70%MIN.MEANMEDIANMAX.

Odds’ distribution

1.611.731.721.8162.11%57.68%58.14%55.25%MIN.MEANMEDIANMAX.

Madison Keys (Visit)

Prediction 44.57%2.24fair odd

EV -1.96%

Edge -0.889%

Kelly -1.63%

Growth +0.000%

assuming max odds 2.20

Bookmakers’ predictions’ distribution

43.30%44.70%44.59%47.58%MIN.MEANMEDIANMAX.

Odds’ distribution

1.952.072.102.2051.28%48.22%47.62%45.45%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Marta Kostyuk (Local): 55.43%; Madison Keys (Visit): 44.57%. For Marta Kostyuk (Local), that estimate is equivalent to fair decimal odds of 1.80. 14 bookmakers offer odds above that level; the best available odds are 1.81, producing a positive expected value of +0.336%.

Sportsbook Odds (50 sportsbooks)

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

Bookmaker	Local ▼	Visit	Margin	Updated
Virgin Bet🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
LeoVegas (SE)🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
TABtouch🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
LiveScore Bet🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
Unibet🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
BetRivers🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
Grosvenor🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
Unibet (NL)🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
Casumo🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
Unibet (SE)🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
betPARX🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
Bally Bet🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 09:59
ATG (SE)🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
Svenska Spel🎯	1.81I 55.25%NM 52.49%EV +0.336%E +0.186%K +0.415%G +0.001%	2.00I 50.00%NM 47.51%EV -10.87%E -5.43%K -10.87%G +0.000%	5.2%	2026-08-05 10:00
Hard Rock Bet🎯	1.80I 55.56%NM 52.63%EV -0.218%E -0.121%K -0.273%G +0.000%	2.00I 50.00%NM 47.37%EV -10.87%E -5.43%K -10.87%G +0.000%	5.6%	2026-08-05 10:00
PMU (FR)🎯	1.77I 56.50%NM 52.42%EV -1.88%E -1.06%K -2.44%G +0.000%	1.95I 51.28%NM 47.58%EV -13.10%E -6.72%K -13.79%G +0.000%	7.8%	2026-08-05 10:00
Pinnacle🎯	1.76I 56.82%NM 55.33%EV -2.44%E -1.38%K -3.20%G +0.000%	2.18I 45.87%NM 44.67%EV -2.85%E -1.31%K -2.41%G +0.000%	2.7%	2026-08-05 11:24
Coolbet🎯	1.75I 57.14%NM 55.47%EV -2.99%E -1.71%K -3.99%G +0.000%	2.18I 45.87%NM 44.53%EV -2.85%E -1.31%K -2.41%G +0.000%	3.0%	2026-08-05 13:04
1xBet🎯	1.75I 57.14%NM 54.90%EV -2.99%E -1.71%K -3.99%G +0.000%	2.13I 46.95%NM 45.10%EV -5.08%E -2.38%K -4.49%G +0.000%	4.1%	2026-08-05 12:15
BoyleSports🎯	1.73I 57.80%NM 55.41%EV -4.10%E -2.37%K -5.61%G +0.000%	2.15I 46.51%NM 44.59%EV -4.18%E -1.95%K -3.64%G +0.000%	4.3%	2026-08-05 10:25
betfred_uk🎯	1.73I 57.80%NM 54.83%EV -4.10%E -2.37%K -5.61%G +0.000%	2.10I 47.62%NM 45.17%EV -6.41%E -3.05%K -5.83%G +0.000%	5.4%	2026-08-05 10:09
Marathon Bet🎯	1.73I 57.80%NM 54.83%EV -4.10%E -2.37%K -5.61%G +0.000%	2.10I 47.62%NM 45.17%EV -6.41%E -3.05%K -5.83%G +0.000%	5.4%	2026-08-05 12:15
Winamax (DE)🎯	1.72I 58.14%NM 56.12%EV -4.65%E -2.71%K -6.46%G +0.000%	2.20I 45.45%NM 43.88%EV -1.96%E -0.889%K -1.63%G +0.000%	3.6%	2026-08-05 13:45
PointsBet (AU)🎯	1.72I 58.14%NM 55.09%EV -4.65%E -2.71%K -6.46%G +0.000%	2.11I 47.39%NM 44.91%EV -5.97%E -2.83%K -5.38%G +0.000%	5.5%	2026-08-05 11:19
Dabble (AU)🎯	1.72I 58.14%NM 54.97%EV -4.65%E -2.71%K -6.46%G +0.000%	2.10I 47.62%NM 45.03%EV -6.41%E -3.05%K -5.83%G +0.000%	5.8%	2026-08-05 14:35
PlayUp🎯	1.72I 58.14%NM 54.97%EV -4.65%E -2.71%K -6.46%G +0.000%	2.10I 47.62%NM 45.03%EV -6.41%E -3.05%K -5.83%G +0.000%	5.8%	2026-08-05 14:34
Ladbrokes (AU)🎯	1.72I 58.14%NM 54.38%EV -4.65%E -2.71%K -6.46%G +0.000%	2.05I 48.78%NM 45.62%EV -8.64%E -4.21%K -8.23%G +0.000%	6.9%	2026-08-05 11:05
Neds🎯	1.72I 58.14%NM 54.38%EV -4.65%E -2.71%K -6.46%G +0.000%	2.05I 48.78%NM 45.62%EV -8.64%E -4.21%K -8.23%G +0.000%	6.9%	2026-08-05 11:04
FanDuel🎯	1.71I 58.48%NM 55.58%EV -5.21%E -3.05%K -7.33%G +0.000%	2.14I 46.73%NM 44.42%EV -4.63%E -2.16%K -4.06%G +0.000%	5.2%	2026-08-05 10:05
Fanatics🎯	1.71I 58.48%NM 55.12%EV -5.21%E -3.05%K -7.33%G +0.000%	2.10I 47.62%NM 44.88%EV -6.41%E -3.05%K -5.83%G +0.000%	6.1%	2026-08-05 10:04
theScore Bet🎯	1.71I 58.48%NM 54.52%EV -5.21%E -3.05%K -7.33%G +0.000%	2.05I 48.78%NM 45.48%EV -8.64%E -4.21%K -8.23%G +0.000%	7.3%	2026-08-05 09:45
Winamax (FR)🎯	1.70I 58.82%NM 55.84%EV -5.76%E -3.39%K -8.23%G +0.000%	2.15I 46.51%NM 44.16%EV -4.18%E -1.95%K -3.64%G +0.000%	5.3%	2026-08-05 13:45
Betr (AU)🎯	1.70I 58.82%NM 55.26%EV -5.76%E -3.39%K -8.23%G +0.000%	2.10I 47.62%NM 44.74%EV -6.41%E -3.05%K -5.83%G +0.000%	6.4%	2026-08-05 10:05
Coral🎯	1.70I 58.82%NM 55.26%EV -5.76%E -3.39%K -8.23%G +0.000%	2.10I 47.62%NM 44.74%EV -6.41%E -3.05%K -5.83%G +0.000%	6.4%	2026-08-05 11:05
Ladbrokes (UK)🎯	1.70I 58.82%NM 55.26%EV -5.76%E -3.39%K -8.23%G +0.000%	2.10I 47.62%NM 44.74%EV -6.41%E -3.05%K -5.83%G +0.000%	6.4%	2026-08-05 11:05
Betway🎯	1.70I 58.82%NM 55.26%EV -5.76%E -3.39%K -8.23%G +0.000%	2.10I 47.62%NM 44.74%EV -6.41%E -3.05%K -5.83%G +0.000%	6.4%	2026-08-05 13:39
Tipico (DE)🎯	1.70I 58.82%NM 54.67%EV -5.76%E -3.39%K -8.23%G +0.000%	2.05I 48.78%NM 45.33%EV -8.64%E -4.21%K -8.23%G +0.000%	7.6%	2026-08-05 14:09
Caesars🎯	1.69I 59.17%NM 55.99%EV -6.32%E -3.74%K -9.15%G +0.000%	2.15I 46.51%NM 44.01%EV -4.18%E -1.95%K -3.64%G +0.000%	5.7%	2026-08-05 10:38
Betclic (FR)🎯	1.69I 59.17%NM 55.87%EV -6.32%E -3.74%K -9.15%G +0.000%	2.14I 46.73%NM 44.13%EV -4.63%E -2.16%K -4.06%G +0.000%	5.9%	2026-08-05 14:09
BetMGM🎯	1.69I 59.17%NM 55.41%EV -6.32%E -3.74%K -9.15%G +0.000%	2.10I 47.62%NM 44.59%EV -6.41%E -3.05%K -5.83%G +0.000%	6.8%	2026-08-05 11:09
DraftKings🎯	1.68I 59.52%NM 56.70%EV -6.87%E -4.09%K -10.10%G +0.000%	2.20I 45.45%NM 43.30%EV -1.96%E -0.889%K -1.63%G +0.000%	5.0%	2026-08-05 09:44
SportsBet🎯	1.68I 59.52%NM 55.56%EV -6.87%E -4.09%K -10.10%G +0.000%	2.10I 47.62%NM 44.44%EV -6.41%E -3.05%K -5.83%G +0.000%	7.1%	2026-08-05 10:05
NetBet (FR)🎯	1.67I 59.88%NM 55.94%EV -7.42%E -4.45%K -11.08%G +0.000%	2.12I 47.17%NM 44.06%EV -5.52%E -2.60%K -4.93%G +0.000%	7.1%	2026-08-05 10:55
Unibet (UK)🎯	1.67I 59.88%NM 55.82%EV -7.42%E -4.45%K -11.08%G +0.000%	2.11I 47.39%NM 44.18%EV -5.97%E -2.83%K -5.38%G +0.000%	7.3%	2026-08-05 10:05
LeoVegas🎯	1.67I 59.88%NM 55.70%EV -7.42%E -4.45%K -11.08%G +0.000%	2.10I 47.62%NM 44.30%EV -6.41%E -3.05%K -5.83%G +0.000%	7.5%	2026-08-05 10:05
Sky Bet🎯	1.67I 59.88%NM 55.70%EV -7.42%E -4.45%K -11.08%G +0.000%	2.10I 47.62%NM 44.30%EV -6.41%E -3.05%K -5.83%G +0.000%	7.5%	2026-08-05 10:05
Paddy Power🎯	1.67I 59.88%NM 55.70%EV -7.42%E -4.45%K -11.08%G +0.000%	2.10I 47.62%NM 44.30%EV -6.41%E -3.05%K -5.83%G +0.000%	7.5%	2026-08-05 10:05
GTbets🎯	1.65I 60.61%NM 56.46%EV -8.53%E -5.17%K -13.13%G +0.000%	2.14I 46.73%NM 43.54%EV -4.63%E -2.16%K -4.06%G +0.000%	7.3%	2026-08-05 10:05
ReBet🎯	1.63I 61.35%NM 55.71%EV -9.64%E -5.92%K -15.30%G +0.000%	2.05I 48.78%NM 44.29%EV -8.64%E -4.21%K -8.23%G +0.000%	10.1%	2026-08-05 10:05
Unibet (FR)🎯	1.61I 62.11%NM 55.40%EV -10.75%E -6.68%K -17.62%G +0.000%	2.00I 50.00%NM 44.60%EV -10.87%E -5.43%K -10.87%G +0.000%	12.1%	2026-08-05 10:04

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)

Bookmaker	Local	Visit	Margin ▲	Updated
Betfair Exchange (UK)◎	1.75I 57.14%NM 55.24%	2.16I 46.30%NM 44.76%	3.4%	2026-08-05 14:15
Betfair Exchange (AU)◎	1.75I 57.14%NM 55.24%	2.16I 46.30%NM 44.76%	3.4%	2026-08-05 14:10
Betfair Exchange (EU)◎	1.75I 57.14%NM 55.24%	2.16I 46.30%NM 44.76%	3.4%	2026-08-05 14:10
Novig◎	1.69I 59.17%NM 55.99%	2.15I 46.51%NM 44.01%	5.7%	2026-08-05 11:20
Matchbook◎	1.65I 60.61%NM 55.28%	2.04I 49.02%NM 44.72%	9.6%	2026-08-05 14:05
Smarkets◎	1.66I 60.24%NM 54.89%	2.02I 49.50%NM 45.11%	9.7%	2026-08-05 14:35