Stefanos Tsitsipas vs Daniel Merida: AI Prediction | Games, Spread, Aces & Double Faults

On paper the matchup is tight. Tsitsipas arrives ranked 80 with an Elo of 1689 and a form index of 64.6; Merida is 102 with a slightly higher Elo of 1709 and an outstanding form index of 85.7. Surface strength indices are nearly identical (Tsitsipas 43.05, Merida 42.29), so neither player has a clear clay-specific advantage. Fatigue is a factor: Merida has spent 299 minutes on court in this event versus Tsitsipas’s 231, which could influence physical exchanges late in rallies. The serving and returning profiles tilt toward Merida. His mean serve index (96.98) is substantially higher than Tsitsipas’s (76.26) — a gap worth noting — and his mean return index (92.70) also far outpaces Tsitsipas’s 57.51, indicating Merida is performing at a higher level on both wings this week. Recent form mirrors those numbers: Tsitsipas has two wins in Madrid (including a 73-minute win over Bublik) but also a loss in Munich, while Merida is unbeaten in three Madrid matches, all straight-set victories (against Moutet, Trungelliti and Harris), showing consistency and momentum through the early rounds.