HOW EACH FACTOR MATTERS
Level (Elo/ranking)▸ Collignon●●●
Collignon's 2009 Elo and #43 ranking dwarf Sonego's 1843/#69; his +21 ranking trend also outpaces Sonego's flat 0.
Serve/return▸ Sonego●
Sonego holds a slim edge on serve (70% vs 68%), while Collignon's return (32% vs 31%) is only marginally better — nets close to even.
Altitude▸ Sonego●●
At 1,050m the thinner air speeds up the ball, amplifying the bigger server's advantage — and Sonego serves at 70% vs Collignon's 68%.
Rest/schedule▸ Collignon●●
Both played yesterday, but Collignon has just 2 matches in the last 14 days versus Sonego's 4, leaving him fresher for a tight contest.
Form▸ Collignon●
Collignon's best recent win (Shelton, Elo 2032) outranks Sonego's top scalp (Navone, Elo 1917), despite both showing streaky form.
Market value= Even●●●
Model gives Collignon 57% but the market prices him at 67% (odds 1.50); expected value is -14.1%, so there is no backing edge here.
CLASS GAP
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.
SERVE VS ALTITUDE
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.
FRESHNESS & FORM
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.
VALUE READ
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.