MODEL PREDICTION · 2026-07-21

D. Vallejo vs K. Feldbauschprediction

✗ Missed
VALLEJOWIN PROBABILITYFELDBAUSCH
74%
model prob.
@1.57
odds · 64% impl.
H2H 0–1 Vallejo🌡19° · 54% hum760 m altitudeRest 3d vs 2d🎾Serve 63%
THE MODEL'S REASONING

Ranking: #71 vs #262 (better ranked)

Recent form: 5/10 in recent matches

Match-sharp: 4 matches in the last 2 weeks

Model 74% vs market 64% → the model sees it as MORE likely than the odds

Calibrated model probability (~65% out-of-sample accuracy). Not a guarantee: the model ≈ the market on average, so the odds already capture almost all the edge. 18+ · gamble responsibly.
@1.35
fair odds
+16.1%
expected value
HOW EACH FACTOR MATTERS
Level (Elo/ranking)▸ Vallejo●●●
Vallejo's Elo (1918 vs 1871) and ranking (#71 vs #262) drive the 74% baseline, well above the market's 63%.
Serve/return▸ Feldbausch●●
Both serve at 63%, but Feldbausch returns better (47% vs 40%), giving him more chances to break the identical serve levels.
Form▸ Feldbausch●●
Feldbausch is 7-3 in his last 10 with a +2 streak; Vallejo is 5-5 with a -1 streak, having lost his most recent match.
Head-to-head▸ Feldbausch
Feldbausch won the only prior meeting (2025, Challenger level), though a single match is a thin sample.
Rest▸ Vallejo
Feldbausch reached the Kitzbuhel final just 2 days ago, a deeper and more recent physical toll than Vallejo's Bastad semifinal exit 3 days prior.
Altitude= Even
760m altitude speeds the ball and typically aids the better server, but both hold serve at an identical 63%, canceling the effect.
CLASS DIFFERENTIAL

Vallejo's ranking (#71 vs #262) and Elo rating (1918 vs 1871) represent the clearest, largest measurable gap in this match. That level difference underpins the model's 74% baseline probability, the single strongest input behind his favorite status.

This is a structural edge built on sustained results at a higher tier, not a short-term form read. It's the main reason the model leans harder toward Vallejo than the betting market does.

SERVE AND RETURN BALANCE

Both players hold serve at an identical 63% rate, which neutralizes any serve-based advantage for either side. In practice, this means the match may hinge less on who serves better and more on who returns better.

Feldbausch holds a 7-point return edge (47% vs 40%), suggesting he converts more return opportunities than Vallejo does. Combined with equal serve numbers, this narrows the practical on-court gap even though the ranking gap is wide.

MOMENTUM AND FATIGUE

Feldbausch arrives with better recent form (7-3, +2 streak) than Vallejo (5-5, -1 streak, losing his last outing), and he also won their only previous meeting this year. These are real, if modest, signals in his favor.

Both players carry deep-run fatigue: Vallejo reached the Bastad semifinals 3 days ago, while Feldbausch played the Kitzbuhel final just 2 days ago. Feldbausch's toll is more recent and came at a higher-stakes round, which could offset some of his form advantage physically.

VALUE READ

The model sets Vallejo at 74% against a market-implied 63% (odds 1.60), producing a nominal +18.3% expected value. That gap is meaningful, but the ATP factor model runs at roughly 65% out-of-sample accuracy, so its edge over the market should be treated as a lean rather than a settled conclusion.

Vallejo's level advantage is real and the primary driver of his favorite status, but Feldbausch's superior return rate, better recent form, and head-to-head win are legitimate counterweights. This looks like a case where the favorite is more likely to win than the market suggests, but not by a margin wide enough to treat as a sure thing.

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.

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