Stefanos Tsitsipas vs Raphael Collignon: AI Prediction | Games, Spread, Aces & Double Faults

The model’s edge for Tsitsipas comes mainly from the serve & return game, which moved the probability 6.3 percentage points in his favor. That aligns with his stronger mean return index (91.82) versus Collignon’s 85.95 — a gap of more than five points that suggests Tsitsipas is better equipped to pressure serve games on clay. Both players show similar serving profiles (mean serve index 96.84 for Tsitsipas, 95.73 for Collignon), so the return differential is the clearest tactical advantage for Stefanos. Other small model nudges favor Collignon: age contributed 1.4 points toward him, and slight edges from overall record/opposition quality (0.9) and recent form (0.7) also tilt marginally his way. On paper Collignon enters higher-ranked (42 vs 85) and with a slightly higher Elo (1742.7 vs 1718.6). Fatigue is notable — Collignon has logged 563 minutes this week compared with Tsitsipas’s 459 — and both show only modest surface strength indices on clay (Tsitsipas 26.49, Collignon 23.73). Each player arrives unbeaten in three matches this week; Tsitsipas has come through three straight three-setters while Collignon’s run includes a straight-sets quarterfinal and two tight wins, suggesting resilience from both.