Single · moneyline
Sharpest call · Valentin Royer
To win
+$60.00
Total payout
$80.00
Joint prob
26.2%
Combined odds
4.00
Fair odds
3.81
Edge
+4.9%
Expected value: +$0.97 on a $20 stake.
Stefanos Tsitsipas enters the ATP Cincinnati Open as a replacement for the injured Jannik Sinner, showing improved form after winning the Gstaad title at the end of July and expressing positive morale about his unexpected entry. Valentin Royer also entered the main draw as a replacement for the injured Sebastian Korda. No integrity flags or other significant morale issues were found for either player in the last 14 days.
Stefanos Tsitsipas has shown improved form and morale, winning the Gstaad title at the end of July 2026 and humorously acknowledging his unexpected entry into the Cincinnati main draw on August 10, 2026.
Valentin Royer entered the main draw as a replacement for the injured Sebastian Korda.
Stefanos Tsitsipas entered the main draw as a replacement for the injured Jannik Sinner.
Expected value: +$0.97 on a $20 stake.
Market: Pinnacle ·
Quarter-Kelly (25%) is the common safe default. Full Kelly is mathematically optimal but volatile.
Model probability: 26.2% · fair market: 24.2% · edge: +8.1%
Model probabilities Valentin Royer 26.2% · Stefanos Tsitsipas 73.8% Why Stefanos Tsitsipas is favoured Stefanos Tsitsipas's Elo (1632) is +121 over Valentin Royer (1511); low confidence. But — counter-arguments Elo confidence is low (10%) — ratings are based on a thin sample, so the prediction itself is wider than the headline number suggests. Calibration Raw model: 23.4% home · Platt-calibrated up to 26.2% based on historical reliability across this sport's graded matches. +EV vs market home: model 26.2% vs market 24.2% (edge +8.1%, suggested Kelly +1.6% of bankroll). Confidence note Elo data on these teams is thin (10% sample-size confidence); headline number is sharper than the underlying signal — treat it as directional, not absolute.
No-vig implied probabilities from recorded snapshots. Line moving toward one side means the market is re-pricing in that team's favour — compare to the model to see who's ahead.