R. Collignon vs L. Sonego — prediction
Slow court, high bounce: longer points, rewards whoever holds up from the baseline.
Warm: the ball flies a little more and fitness counts.
Very dry air: the ball travels faster.
Light wind: no noticeable effect.
High altitude: thin air, faster ball and longer bounce.
Surface feeds the model (surface specialization is one of its factors). Weather and altitude are context we publish for you — they do NOT move the probability.
›Ranking: #43 vs #69 (better ranked)
›Recent form: 5/10 in recent matches
›More rested: 14d vs opponent's 10d
›Model 57% vs market 67% → the model sees it as less likely than the odds
!Coming off 3 losses in a row
The clearest separator in this match is quality: Collignon's 2009 Elo rating sits 166 points above Sonego's 1843, and the ranking table tells the same story — #43 versus #69. Collignon is also trending upward (+21 spots) while Sonego is static, suggesting the gap may be widening rather than closing.
This is the foundation of the model's lean toward Collignon. It's a level-based edge, not a stylistic knockout, but at this margin it's meaningful over best-of-three.
On paper, Sonego is the slightly bigger server (70% service points won vs Collignon's 68%), and Collignon's return advantage (32% vs 31%) is too thin to offset that. At 1,050m altitude, the thinner air speeds up the ball flight, which generally amplifies the returns a strong server gets from raw pace — a small mechanical plus for Sonego in this specific venue.
None of this is decisive on its own — the serve/return numbers are close enough that it functions more as a minor counterweight to Collignon's class edge than as an independent driver of the match.
Fatigue management favors Collignon: he has played only 2 matches in the last 14 days compared to Sonego's 4, even though both are coming off a match played just one day ago. Fewer matches over the last two weeks generally means fresher legs for physical, best-of-three tennis.
Recent form is muddled for both — Collignon is 6-4 and Sonego 5-5 across their last 10 — but Collignon's best win (over Shelton, Elo 2032) outranks Sonego's best (Navone, Elo 1917), giving him a slight qualitative edge in the form column despite his own recent 3-match losing skid noted in the data.
The model rates Collignon a 57% favorite, but the market — reflected in odds of 1.50 — implies 67%. That gap produces a -14.1% expected value on backing Collignon, meaning the price is already assuming more dominance than the model's factors justify.
Collignon being the likelier winner and Collignon being a good bet are two different things. Here, being favored does not translate into value: the market has priced in the class gap and rest advantage more aggressively than the model does, so this is not a spot to treat as attractive purely because Collignon is expected to win.
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.