Alexander Donski #528Canada22 – 0Erik GreveliusSweden0

Signal quality High · Uncertainty band Strong lean · Market price 1.18

The read

Donski's superior clay-court form, higher ranking, and stronger serve/return stats give him a clear edge over Grevelius, who lacks recent clay matches and enters as an alternate.

• Donski is 5-6 on clay in 2026 with wins over players ranked 310-900; Grevelius has no clay matches since 2024 and is 0-2 on hard in 2025.
• Donski's recent form (last 5): 3-2, all on clay, with wins over Pieczonka (900), Montsi (773), Duran (722); Grevelius's last 5: 2-3, all on hard/indoor, with losses to Samrej (388) and Smith (247).
• Donski holds a 60.1% break point save rate vs Grevelius's 53.5%, and Donski's first-serve win rate (71.5%) edges Grevelius's (64.9%).
• Donski is seeded No. 6 in qualifying; Grevelius entered as an alternate, indicating a weaker entry position.

Signal quality Medium · Uncertainty band Strong lean · Market price 1.40

The read

Donski's consistent game margins in wins and Grevelius's heavy losses against similar competition support Donski covering a -3.5 game handicap.

• Donski's average game margin in wins over players ranked 700+ is +5.2 games; Grevelius's losses to top-400 players average -7.5 games.
• Donski's last 5 clay wins: +5, +3, +2, +4, +6 game margins; Grevelius's last 5 losses: -10, -6, -3, -10, -9.
• Donski's break point conversion (39.3%) and save rate (60.1%) are superior to Grevelius's (45.4% and 53.5%), indicating Donski should cover -3.5.

Signal quality Low · Uncertainty band Lean · Not priced

The read

Donski's second sets on clay consistently exceed 9.5 games, and Grevelius's serve may hold up better on clay, though his recent second-set struggles lower confidence.

• Donski's last 5 second sets on clay: 6-4, 6-4, 6-4, 6-4, 6-3 — all over 9.5 games.
• Grevelius's last 5 second sets: 0-6, 4-6, 4-6, 3-6, 2-6 — only 1 over 9.5, but those were on hard/indoor; clay may slow Donski's dominance.
• Donski's break point conversion rate is 39.3%, which is moderate, potentially allowing Grevelius to stay in games.

Signal quality Medium · Uncertainty band Strong lean · Market price 1.29

The read

Donski's strong first-set record and Grevelius's lack of recent clay exposure make Donski likely to take the opening set.

• Donski has won the first set in 8 of his last 10 matches; Grevelius has lost the first set in 3 of his last 5.
• Donski's first-set win conversion rate is 86% career; Grevelius's is 90% but based on a much smaller sample (31 wins).
• On clay in 2026, Donski's first-set performance includes wins over Montsi and Duran; Grevelius has no clay data in 2025-2026.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Projected ace counts hover around 5.5, making over 5.5 a marginal call, but Donski's higher ace rate on a surface that still allows some free points gives slight edge to over.

• Donski averages 8.5% ace rate; in a typical 20-game match, that projects to ~4-5 aces.
• Grevelius averages 3.7% ace rate, projecting ~1-2 aces in 20 games.
• Combined, they average ~6-7 aces per match, but clay reduces ace counts; Donski's 2013 career aces in 452 matches suggest ~4.5 aces per match.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Both players have similar double fault rates, and the clay surface may lead to longer points and more second-serve pressure, pushing combined double faults over 4.5.

• Donski's double fault rate is 5.5%, Grevelius's is 5.4%; both average ~2-3 double faults per match.
• In a 20-game match, combined double faults project to ~4-5, but clay rallies may increase pressure on second serves.
• Donski's 1306 career double faults in 452 matches average ~2.9 per match; Grevelius's 142 in 53 matches average ~2.7.