Santiago Chile Clay Atp 250 Round of 16

Adolfo Daniel Vallejo vs Emilio Nava: AI Prediction | Games, Aces & Double Faults

Adolfo Daniel Vallejo

Rank: #106
42%
VS

Emilio Nava

Rank: #79
58%
Expected Total Games: 23.4
Predicted Winner: Emilio Nava

Player Metrics

Adolfo Daniel Vallejo

Form Index: 51.6
ELO Rating: 443.4
Glicko2 Rating: 1536.3
Current Fatigue (minutes): 309.0
Surface Strength:
Hard: 1.2
Clay: 3.0
Grass: 3.6
Serve Rating: 39.9
Return Rating: 68.6

Emilio Nava

Form Index: 38.2
ELO Rating: 690.0
Glicko2 Rating: 1531.6
Current Fatigue (minutes): 86.0
Surface Strength:
Hard: 6.6
Clay: 5.8
Grass: 5.0
Serve Rating: 97.5
Return Rating: 86.3

Recent Matches

Adolfo Daniel Vallejo

  • Last Match: vs Francesco Passaro (1-1) clay Santiago 57 min
  • 2nd Last Match: vs Henrique Rocha (2-0) clay Santiago 86 min
  • 3rd Last Match: vs Thiago Monteiro (2-1) clay Santiago 166 min
  • 4th Last Match: vs Thiago Monteiro (0-2) clay Rio 92 min
  • 5th Last Match: vs Arthur Gea (0-2) hard Australian Open 174 min

Emilio Nava

  • Last Match: vs Matteo Berrettini (2-0) clay Santiago 86 min
  • 2nd Last Match: vs Alejandro Tabilo (0-2) clay Rio 63 min
  • 3rd Last Match: vs Mariano Navone (0-2) clay Buenos Aires 63 min
  • 4th Last Match: vs Cameron Norrie (1-3) hard Australian Open 174 min
  • 5th Last Match: vs Kyrian Jacquet (3-2) hard Australian Open 174 min

Head-to-Head (Last 2 Seasons)

0
Adolfo Daniel Vallejo
vs
0
Emilio Nava
Hard
0 - 0
Clay
0 - 0
Grass
0 - 0

Key Prediction Insights

This Round of 16 clash in Santiago, Chile, is on clay at a 250-level event and pits Adolfo Daniel Vallejo against Emilio Nava. The model favors Emilio Nava (57.60%) over Adolfo Daniel Vallejo (42.40%), with a predicted total of about 23.45 games for the match.

Match Analysis

Nava enters with the higher ranking (79 vs 106) and a substantially stronger Elo (689.97 vs 443.39), signaling a performance gap in recent head-to-head metrics. Vallejo shows a better form index (51.58) than Nava (38.17) and arrives having won his last three matches at this event, but his cumulative fatigue is large (309 minutes on court) compared with Nava’s relatively light 86 minutes. Vallejo’s surface strength index is 3.00 versus Nava’s 5.83 — both low on the same proprietary scale, but Nava’s numbers are modestly superior. Serve and return profiles diverge sharply: Nava’s mean serve index is 97.52 compared with Vallejo’s 39.91, a difference well over 5 points and likely to influence service holds and free points. Nava also has a stronger mean return index (86.28 vs 68.61), another gap above 5 points that suggests he can capitalize on return opportunities. Vallejo’s recent results show resilience on clay — three wins including a long 166-minute match — while Nava’s form is mixed (a straight-sets win in Santiago following two earlier losses), indicating a player who can produce high peaks but has been inconsistent.

Total Games Predictions

🎾
Expected Total Games in Match 23.4 Most likely outcome: 23 games

📊 Total Games Probability Distribution

Distribution

Probability of each total games outcome

Cumulative Probability (CDF)

Probability of total games ≤ X

Aces and Double Faults Predictions

The aces prediction for the match is 13.22 total and the predicted double faults are 4.4. Given clay’s slower pace and higher bounce, expected aces are suppressed compared with faster surfaces, while expected double faults can rise with longer points and fatigue. Nava’s significantly higher serve rating should drive a disproportionate share of the predicted aces, though the surface will temper that effect; the expected double faults may be influenced by Vallejo’s accumulated minutes and Nava’s aggressive serving.
🎯
Expected Total Aces 13.2 Most likely: 13 aces
Expected Total Double Faults 4.4 Most likely: 4 double faults

🎯 Aces Probability Distribution

Distribution

Probability of each ace count outcome

Cumulative Probability (CDF)

Probability of aces ≤ X

Double Faults Probability Distribution

Distribution

Probability of each double fault count outcome

Cumulative Probability (CDF)

Probability of double faults ≤ X

Final Prediction

Nava’s advantage in serve, return and Elo gives him the edge despite Vallejo’s hot run and higher short-term form. The key factor to watch is Nava’s ability to convert free points on serve and whether Vallejo’s fatigue affects his hold-to-hold consistency.

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