Adolfo Daniel Vallejo #7311 – 3Nicolas Mejia #168Colombia3

Signal quality Medium · Uncertainty band Lean · Market price 1.91

The read

Both players' recent match lengths and serve-oriented grass play point to a match exceeding 22.5 games.

• Vallejo's last 5 matches averaged 23.6 total games; Mejia's last 5 averaged 22.8.
• Both players have high hold rates on grass-relative serve stats, suggesting tight sets.
• Mejia's 3 qualifying matches all went over 22.5 games, indicating competitive scorelines.

Signal quality Medium · Uncertainty band Lean · Market price 1.91

The read

Strong serving and recent first-set trends make a 10+ game first set likely.

• Vallejo's last 5 first sets averaged 10.2 games; Mejia's averaged 9.8.
• Mejia's grass matches often feature tight first sets (e.g., 7-6, 6-4).
• Both have first-serve win percentages above 64%, reducing early breaks.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Serve dominance and historical second-set trends support a competitive set with over 9.5 games.

• Vallejo's last 5 second sets averaged 9.6 games; Mejia's averaged 9.4.
• Grass matches often see tighter second sets as players adjust to serve patterns.
• Both players have break point save rates above 57%, extending games.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Mejia's strong qualifying performance and Vallejo's lack of grass experience suggest a close match, with Mejia covering the +3.5 game handicap.

• Mejia's grass qualifying wins were all by 6+ game margins, showing competitiveness.
• Vallejo's recent wins have been by 5+ games, but against weaker opponents.
• H2H is 0-0, but Mejia's grass form suggests he can keep it close.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Vallejo's high first-set win conversion and recent strong starts against quality opponents suggest he can edge the opener.

• Vallejo has won 88% of matches when winning the first set in his career.
• Mejia's first-set win conversion is 85%, but he has lost the first set in 3 of his last 5 matches.
• Vallejo's recent first-set performance includes wins over Dimitrov and Tien, showing strong starts.

Signal quality Low · Uncertainty band Near coin-flip · Not priced

The read

The competitive nature of the matchup and both players' tendency for three-setters suggest a possible decider.

• Vallejo has played 3-setters in 4 of his last 15 matches; Mejia in 5 of his last 15.
• Both have deciding set win rates around 50-60%, indicating no clear dominance.
• Grass often produces close matches between evenly matched players.

Signal quality Medium · Uncertainty band Strong lean · Not priced

The read

Mejia's higher ace rate and the grass surface boost make a combined ace count over 12.5 probable.

• Mejia's ace rate is 4.8% (career 1630 aces in 526 matches), Vallejo's is 2.9%.
• On grass, ace rates typically increase; Mejia averaged ~6 aces per match in qualifying.
• Vallejo's serve stats suggest he can contribute 4-5 aces, pushing the total over 12.5.

Signal quality Medium · Uncertainty band Lean · Not priced

The read

Recent tiebreak frequency and grass-court dynamics make at least one tiebreak likely.

• Vallejo has played tiebreaks in 3 of his last 5 matches; Mejia in 2 of his last 5.
• Both have tiebreak win rates around 37-51%, indicating frequent tiebreak appearances.
• Grass matches often feature tiebreaks due to serve dominance.

Signal quality Low · Uncertainty band Slight lean · Not priced

The read

Vallejo's higher double fault tendency and grass-court serving pressure could push the total over 6.5.

• Vallejo's double fault rate is 4.6% (818 in 286 matches), Mejia's is 3.3%.
• Grass can lead to more double faults due to aggressive second serves.
• Vallejo averages ~3 double faults per match, Mejia ~2, totaling around 5-6.