Halle Germany Grass Atp 500 Round of 16

Ben Shelton vs Ethan Quinn: AI Prediction | Games, Spread, Aces & Double Faults

Ben Shelton

Rank: #5
70%
VS

Ethan Quinn

Rank: #66
30%
Expected Total Games: 27.4
Predicted Winner: Ben Shelton

Why the Model Favors Ben Shelton

The factors that drove this prediction, measured in win-probability points.

Recent form +6.8 Ben Shelton
Overall strength +6.6 Ben Shelton
Recent record by level +2.7 Ben Shelton
Surface fit +1.5 Ben Shelton
Overall record & opposition quality +0.9 Ben Shelton

Starting from an even matchup, these factors move the model to 70% for Ben Shelton. Computed with gradient-based attribution on our neural network — not editorial opinion. How to read this →

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Ranking Trends

Ben Shelton

  • Current #5 2026-06-15
  • 3 mo ago #9 2026-03-16
  • 6 mo ago #9 2025-12-15
  • 9 mo ago #6 2025-09-15
  • 12 mo ago #10 2025-06-16

Ethan Quinn

  • Current #66 2026-06-15
  • 3 mo ago #56 2026-03-16
  • 6 mo ago #70 2025-12-15
  • 9 mo ago #81 2025-09-15
  • 12 mo ago #95 2025-06-16

Player Metrics

Ben Shelton

Form Index: 49.5
ELO Rating: 1841.0
Glicko2 Rating: 1912.8
Current Fatigue (minutes): 79.0
Surface Strength:
Hard: 44.0
Clay: 27.7
Grass: 44.1
Serve Rating: 96.7
Return Rating: 90.1

Ethan Quinn

Form Index: 24.3
ELO Rating: 1545.7
Glicko2 Rating: 1600.5
Current Fatigue (minutes): 120.0
Surface Strength:
Hard: 25.7
Clay: 15.9
Grass: 13.3
Serve Rating: 94.3
Return Rating: 84.8

Recent Matches

Ben Shelton
✅ ✅ ✅ ✅ ✅

  • Last Match: ✅ vs Lorenzo Sonego (2-0) grass Halle 79 min
  • 2nd Last Match: ✅ vs Taylor Fritz (2-1) grass Stuttgart 108 min
  • 3rd Last Match: ✅ vs Jiri Lehecka (2-1) grass Stuttgart 172 min
  • 4th Last Match: ✅ vs Sho Shimabukuro (2-1) grass Stuttgart 103 min
  • 5th Last Match: ✅ vs Marcos Giron (2-1) grass Stuttgart 158 min

Ethan Quinn
✅ ❌ ❌ ❌ ❌

  • Last Match: ✅ vs Karen Khachanov (2-1) grass Halle 120 min
  • 2nd Last Match: ❌ vs Francisco Comesana (0-3) clay Roland Garros 174 min
  • 3rd Last Match: ❌ vs Tommy Paul (0-2) clay Hamburg 70 min
  • 4th Last Match: ❌ vs Pablo Llamas Ruiz (1-2) clay Rome 150 min
  • 5th Last Match: ❌ vs Fabian Marozsan (0-2) clay Madrid 113 min

Head-to-Head (Last 2 Seasons)

0
Ben Shelton
vs
0
Ethan Quinn
Hard
0 - 0
Clay
0 - 0
Grass
0 - 0

Key Prediction Insights

At Halle in Germany, round of 16 on grass at an ATP 500 event, Ben Shelton is the clear favorite to progress. The model projects Shelton to win with 69.50% probability versus Ethan Quinn at 30.50%, and it forecasts a relatively short match of about 27.44 total games.

Match Analysis

The model’s edge for Shelton comes mainly from recent form and overall strength: recent form contributes +6.8 percentage points and overall strength +6.6 toward him. Shelton’s season metrics underline that — he’s ranked 5th with an Elo around 1841 and a form index of 49.52, while Quinn sits 66th with an Elo near 1546 and a form index of 24.31. Those gaps explain much of the projected margin. Secondary drivers include Shelton’s stronger recent record at this level (+2.7) and a modest surface fit advantage (+1.5). Serve and fatigue profiles shape how the match may play out. Both players possess big serves (Shelton mean serve 96.71, Quinn 94.26) so neither holds a dramatically superior serve rating, but Shelton’s mean return index (90.13) is notably higher than Quinn’s (84.75) — a gap greater than five points that favors Shelton when return games arise. Fatigue also matters: Shelton has logged 79 minutes so far in the event versus Quinn’s 120 minutes, giving Shelton a freshness edge. Recent results mirror these numbers: Shelton arrives unbeaten in his last three grass matches (wins in Halle and Stuttgart), while Quinn has a signature victory at Halle over Khachanov but had two straight losses on clay before that.

Total Games Predictions

🎾
Expected Total Games in Match 27.4 Most likely outcome: 27 games

📊 Total Games Probability Distribution

Distribution

Probability of each total games outcome

Cumulative Probability (CDF)

Probability of total games ≤ X

Games Spread Predictions

📈
Expected Games Spread (Ben Shelton - Ethan Quinn) +2.8 Most likely spread: +3 (Ben Shelton wins 3 more games)

📊 Games Spread Probability Distribution

Distribution

Probability of each games spread outcome

Cumulative Probability (CDF)

Probability of spread ≤ X

Aces and Double Faults Predictions

The aces prediction is for a high total — the model’s predicted aces are 17.3 for the match, consistent with grass boosting serve dominance. The double faults prediction is moderate: the expected double faults are 5.9 combined. With both players showing strong serve indexes and the fast, low-bouncing grass surface, the match should produce plenty of free points from the big serves.
🎯
Expected Total Aces 17.3 Most likely: 17 aces
❌
Expected Total Double Faults 5.9 Most likely: 5 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

🎯 Match Format Predictions

Tiebreak Likelihood

Probability that any tiebreak is played in this match

53.3% Predicted: Tiebreak likely

Exact Score Distribution BO3

Probability of each set-by-set outcome (Ben Shelton's perspective)

2-0 Most likely set score (42.7%)
New to probability charts? Learn how to interpret distribution and CDF curves

Final Prediction

Shelton’s recent form is the top factor driving the projection; his higher form index and Elo give him the edge. The key thing to watch will be Shelton’s returning effectiveness against Quinn’s serve — that return gap could decide how many return games there are.

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