Yannick Hanfmann vs Adolfo Daniel Vallejo: AI Prediction | Games, Spread, Aces & Double Faults

The model’s edge for Hanfmann comes mainly from his serve-and-return strength and recent level-specific results. Hanfmann’s mean serve index (97.48) and mean return index (93.29) outpace Vallejo’s (serve 94.29, return 89.50), and that serve/return gap is the single biggest driver (+12.0 percentage points) of the projection. Both players carry similar Elo (Hanfmann 1639.8, Vallejo 1635.0) but Hanfmann’s higher ATP rank (59 vs 71) supports the margin. Secondary drivers include recent record by level and surface fit. Hanfmann’s recent matches have been on grass (Halle and Stuttgart), with a 1–2 record in his last three but notable experience at this surface; the model credits that familiarity (+7.4 points). His surface strength index (14.77) is higher than Vallejo’s 8.06, giving Hanfmann a modest edge on grass (+4.8). Form indices are close (Hanfmann 35.62, Vallejo 39.25); despite Vallejo’s slightly higher form index, the model still favors Hanfmann because his recent wins and performance came on grass rather than the clay swing Vallejo has been playing. Recent match summary: Hanfmann beat Joao Fonseca but lost to Alexander Zverev and Mattia Bellucci in longer grass encounters. Vallejo’s last three came on clay—two long Roland Garros matches and a Rome match—he beat Cameron Norrie but lost to Moise Kouame and Jaime Faria.