R. Collignon vs L. Sonego — prediction
›Ranking: #43 vs #69 (better ranked)
›Recent form: 5/10 in recent matches
›More rested: 15d vs opponent's 11d
›Model 57% vs market 67% → the model sees it as less likely than the odds
!Coming off 3 losses in a row
Collignon's Elo rating of 2009 sits well above Sonego's 1843, and his ranking of #43 versus #69 reinforces a real quality gap between the two. The baseline model split (47% Collignon, 45% Sonego) reflects this before any situational adjustments, and it's the single largest structural factor pushing the overall probability to 57% for Collignon.
Contrary to the ranking gap, Sonego actually owns the sharper service numbers in this data set — 70% of serve points won compared to Collignon's 68%. Collignon's return game is marginally better (32% vs 31%), but not enough to offset Sonego's serve advantage outright.
At 1050 meters, the thinner air speeds up the ball, a dynamic that generally rewards the better server. Since Sonego holds that edge here, altitude works in his favor mechanically. The weather (24°C, dry, 9 km/h wind) is mild enough that it shouldn't disrupt either player's precision, so this serve-quality gap stands largely on its own.
Both players show mixed recent form — Collignon 6-4 in his last 10, Sonego 5-5 — but Collignon's best win, over B. Shelton (Elo 2032), outranks Sonego's best win over M. Navone (Elo 1917). That said, Collignon's log shows three consecutive losses immediately before his current one-match winning streak, a pattern worth flagging even though it isn't a guaranteed predictor.
On workload, Sonego has played three matches in the last 14 days against Collignon's one. That density can accumulate physically, and combined with Sonego's recent shakier form (5-5), it adds a layer of uncertainty to his side beyond the raw serve numbers.
The model places Collignon's win probability at 57%, but the market — via 1.50 odds — implies 67%. That gap produces an expected value of -14.1%, meaning the model does not see enough of an edge here to justify backing the favorite at this price.
Being the favorite doesn't equate to being a value bet. Even with the Elo and ranking gap in Collignon's favor, this reads as a case where the market has priced in more certainty than the underlying factors — serve numbers, fatigue, recent form — fully support. Caution is warranted rather than automatic confidence in the favorite.
Impact and analysis from real match data (Elo, form, head-to-head, rest, surface vs baseline, weather, altitude). The model ≈ the market on average; the odds already capture almost all the edge. 18+ · gamble responsibly.