Us Open NY, U.S.A. Hard Grand Slam Quarterfinals

Karen Khachanov vs Alexander Blockx: AI Prediction | Games, Spread, Aces & Double Faults

Karen Khachanov

Rank: #49
44%
VS

Alexander Blockx

Rank: #32
56%
Expected Total Games: 37.6
Predicted Winner: Alexander Blockx

Why the Model Favors Alexander Blockx

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

Recent record by level +5.6 Karen Khachanov
Serve & return game +3.2 Alexander Blockx
Age +3.1 Alexander Blockx
Overall record & opposition quality +2.2 Alexander Blockx
Overall strength +1.9 Karen Khachanov

Starting from an even matchup, these factors move the model to 56% for Alexander Blockx. Computed with gradient-based attribution on our neural network, not editorial opinion. How to read this →

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Player Metrics

Karen Khachanov

Form Index: 72.3
ELO Rating: 1810.5
Glicko2 Rating: 1708.5
Current Fatigue (minutes): 696.0
Surface Strength:
Hard: 33.9
Clay: 26.2
Grass: 30.1
Serve Rating: 96.8
Return Rating: 89.2

Alexander Blockx

Form Index: 84.4
ELO Rating: 1910.6
Glicko2 Rating: 1852.9
Current Fatigue (minutes): 696.0
Surface Strength:
Hard: 31.3
Clay: 32.7
Grass: 5.8
Serve Rating: 95.7
Return Rating: 86.9

Recent Matches

Karen Khachanov

Alexander Blockx

Head-to-Head (Last 2 Seasons)

0
Karen Khachanov
vs
0
Alexander Blockx
Hard
0 - 0
Clay
0 - 0
Grass
0 - 0

Key Prediction Insights

At the 2026 US Open quarterfinals in New York, on hard courts, Alexander Blockx is narrowly favoured to beat Karen Khachanov. The model gives Blockx a 55.87% chance of victory against Khachanov at 44.13%. The match is expected to be competitive, with a projected total of about 37.6 games.

Match Analysis

The model’s edge for Khachanov comes mainly from recent results by level, which add 5.6 percentage points to his chance based on how he has performed in big matches. Khachanov’s form index is 72.32 and his Elo sits at 1810.46. He arrives with substantial momentum at this event, having beaten Felix Auger-Aliassime 3-1, Benjamin Bonzi 3-0, and Learner Tien 3-2 in earlier rounds. His surface strength index is 33.85 and his mean serve index is strong at 96.79. His mean return index is 89.25. Cumulative fatigue from the tournament is listed at 696 minutes. Blockx is favoured overall because the model also credits his serve and return game, his age profile, and the quality of opposition he has beaten. He has a higher form index at 84.42 and a superior Elo of 1910.57. Blockx’s recent pathway is also impressive, with three straight wins at the Open, all 3-1 scores over Marco Trungelliti, Flavio Cobolli, and Francisco Cerundolo. His surface strength index is 31.32. His mean serve and return indices are 95.66 and 86.94 respectively, which are close to Khachanov’s numbers. Fatigue is identical in the dataset at 696 minutes for both players. Overall strength nudges Khachanov slightly, but the combination of Blockx’s Elo, form, and serve and return metrics tilt the balance to him.

Total Games Predictions

🎾
Expected Total Games in Match 37.6 Most likely outcome: 36 games

📊 Total Games Probability Distribution

Distribution

Probability of each total games outcome

Probability distribution chart for total games in Karen Khachanov versus Alexander Blockx. The X-axis shows possible total games values and the Y-axis shows the predicted probability percentage for each outcome.
Cumulative Probability (CDF)

Probability of total games ≤ X

Cumulative distribution function chart for total games in Karen Khachanov versus Alexander Blockx. The curve rises from 0% to 100%, showing the cumulative probability for each games total threshold.

Games Spread Predictions

📈
Expected Games Spread (Karen Khachanov - Alexander Blockx) -1.1 Most likely spread: -2 (Alexander Blockx wins 2 more games)

📊 Games Spread Probability Distribution

Distribution

Probability of each games spread outcome

Probability distribution chart for games spread in Karen Khachanov versus Alexander Blockx. Positive values indicate Karen Khachanov winning more games, negative values indicate Alexander Blockx winning more games.
Cumulative Probability (CDF)

Probability of spread ≤ X

Cumulative distribution function chart for games spread in Karen Khachanov versus Alexander Blockx. The curve shows the cumulative probability for each spread threshold.

Aces and Double Faults Predictions

The aces prediction for this quarterfinal totals about 19.06 aces, with Blockx expected to serve about 10.38 and Khachanov about 9.00. The predicted aces reflect a balanced big-serve profile from both players on a medium-paced hard court. The expected double faults for the match are 7.24 in total, with Khachanov at 3.48 and Blockx at 3.77. Given the surface, these expected double faults are within a normal range for a match of this length.
🎯
Expected Total Aces 19.1 Most likely: 17 aces Per player: Karen Khachanov 9.0 + Alexander Blockx 10.4
Expected Total Double Faults 7.2 Most likely: 6 double faults Per player: Karen Khachanov 3.5 + Alexander Blockx 3.8

🎯 Aces Probability Distribution

Distribution

Probability of each ace count outcome

Probability distribution chart for total aces in Karen Khachanov versus Alexander Blockx. Higher ace counts are more likely on faster surfaces like grass.
Cumulative Probability (CDF)

Probability of aces ≤ X

Cumulative distribution function chart for total aces in Karen Khachanov versus Alexander Blockx. The curve shows the cumulative probability for each aces threshold.

🎯 Aces by Player

Karen Khachanov

Expected 9.0 aces

Probability distribution for the aces Karen Khachanov serves in this match.
Alexander Blockx

Expected 10.4 aces

Probability distribution for the aces Alexander Blockx serves in this match.

Double Faults Probability Distribution

Distribution

Probability of each double fault count outcome

Probability distribution chart for double faults in Karen Khachanov versus Alexander Blockx. The chart shows the predicted probability for each double-fault count.
Cumulative Probability (CDF)

Probability of double faults ≤ X

Cumulative distribution function chart for double faults in Karen Khachanov versus Alexander Blockx. The curve shows the cumulative probability for each double faults threshold.

Double Faults by Player

Karen Khachanov

Expected 3.5 double faults

Probability distribution for the double faults Karen Khachanov serves in this match.
Alexander Blockx

Expected 3.8 double faults

Probability distribution for the double faults Alexander Blockx serves in this match.

🎯 Match Format Predictions

Tiebreak Likelihood

Probability that any tiebreak is played in this match

52.4% Predicted: Tiebreak likely

Exact Score Distribution BO5

Probability of each set-by-set outcome (Karen Khachanov's perspective)

0-3 Most likely set score (23.1%)
Probability distribution of the final set score from Karen Khachanov's perspective. Format: BO5.

Final Prediction

Blockx’s slight edge comes from stronger form and a higher Elo, backed by the model factors of serve and return game and age moving the probability toward him. The top model key factor to note is Khachanov’s superior recent record by level, which keeps this a tight matchup. Watch the serve and return exchanges early on, as those will likely decide who controls the big points.

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