Frances Tiafoe vs Jannik Sinner: AI Prediction | Games, Spread, Aces & Double Faults

On paper the contrast is stark. Tiafoe sits at world No. 20 with a higher recent form index (92.28) but a far lower Elo (1835) than Sinner, who is ranked No. 2 and carries an Elo of 2463. Sinner’s surface strength index (96.09) dwarfs Tiafoe’s 56.45, and Tiafoe has accumulated considerably more court time at this event (374 minutes versus Sinner’s 242), a factor that may increase fatigue as the evening wears on. The mean serve index difference is substantial—Sinner 96.87 to Tiafoe 68.34—so Sinner’s serve advantage is a major component here; the mean return index gap is also large (Sinner 89.62 vs Tiafoe 53.57), indicating Sinner’s edge on both serve and return. Form across the last three matches reinforces the forecast: Tiafoe has won three matches but endured a 171-minute encounter and a 112-minute match, while Sinner has taken three routine straight-set victories with shorter durations (101, 71, 70 minutes), arriving fresher and with cleaner scorelines. Those shorter matches help explain Sinner’s lower cumulative fatigue and support expectations of him maintaining a high level deep into this quarterfinal.