ATP 500 · 1st Round Qualifying · Rio Open presented by Claro
Final score & match stats
Playing styles and historical archetype record
Monteiro
🏹 Frontrunner
Vallejo
⚔️ The Gladiator
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Monteiro | Vallejo |
|---|---|---|
| W-L | 11–8 | 17–4 |
| Avg odds | 1.87 | 1.43 |
| ROI % | -0.1% | +15.9% |
| Units P/L | -0.02u | +3.33u |
Prior meetings and scores · 4 career meetings
2
Monteiro
2
Vallejo
Mar 13, 2026
Challenger de Santiago - Dove Men Care
C Clay · Quarterfinals
Feb 21, 2026
BCI Seguros Chile Open
C Clay · 1st Round Qualifying
Feb 14, 2026
Rio Open presented by Claro
C Clay · 1st Round Qualifying
Jan 23, 2026
Itajai Open
C Clay · Quarterfinals
Hit rates on common betting markets · Last 90 days
| Outcome | Monteiro | Vallejo | ||
|---|---|---|---|---|
| 1 or more | 100% | 19/19 | 92% | 24/26 |
| 3 or more | 63% | 12/19 | 65% | 17/26 |
| 5 or more | 26% | 5/19 | 31% | 8/26 |
| 10 or more | 0% | 0/19 | 8% | 2/26 |
| 15 or more | 0% | 0/19 | 0% | 0/26 |
| 20 or more | 0% | 0/19 | 0% | 0/26 |
Results vs. opponents both players faced · Last 12 months
Vallejo has a higher win rate against shared opponents (70% vs Monteiro's 40%).
| Opponent | Monteiro | Vallejo |
|---|---|---|
| Henrique Rocha | L 06 76 36 | W 61 46 62 |
| Genaro Alberto Olivieri | L 63 46 57 | L 36 26 |
| Pedro Boscardin Dias | W 61 62 | W 62 64 |
| Facundo Diaz Acosta | W 64 64 | W 76 63 |
| Joao Eduardo Schiessl | W 62 62 | W 64 62 |
| Facundo Mena | L 57 67 | W 61 62 |
| Tomas Barrios Vera | L 26 57 | W 63 16 64 |
| Marco Cecchinato | W 76 76 | W 61 60 |
| Roman Andres Burruchaga | L 46 76 06 | L 16 26 |
| Duje Ajdukovic | L 36 64 46 | L 57 46 |
Serve and return comparison · Last 90 days
| Stat | Monteiro | Vallejo |
|---|---|---|
| Serve | ||
| 1st Serve In % | 63.8% | 62.1% |
| 1st Serve Pts Won % | 67.4% | 68.8% |
| 2nd Serve Pts Won % | 50.5% | 52.6% |
| Aces / Match | 3.5 | 3.7 |
| Double Faults / Match | 2.4 | 2.4 |
| Break Points Saved % | 55.4% | 45.5% |
| Return | ||
| 1st Return Pts Won % | 29% | 38.6% |
| 2nd Return Pts Won % | 48.1% | 55.4% |
| BP Converted % | 41.3% | 50.1% |
| Rally | ||
| Winners / Match | 18.4 | 22.5 |
| Unforced Errors / Match | 29.4 | 25.8 |
| Net Pts Won % | 60.2% | 73.5% |
| Total Pts Won % | 48.7% | 54% |
| Surface (Clay) | ||
| Clay Win % | 58% | 77% |
Last five matches per player
Pedro Sakamoto
LA OPEN · Round of 32
Mar 23
Genaro Alberto Olivieri
Challenger de Santiago - Dove Men Care · Semifinals
Mar 14
Adolfo Daniel Vallejo
Challenger de Santiago - Dove Men Care · Quarterfinals
Mar 13
Diego Dedura
Challenger de Santiago - Dove Men Care · Round of 16
Mar 12
Gianluca Cadenasso
Challenger de Santiago - Dove Men Care · Round of 32
Mar 10
Henrique Rocha
Mutua Madrid Open · 2nd Round Qualifying
Apr 21
Pedro Martinez
Mutua Madrid Open · 1st Round Qualifying
Apr 20
Tommy Paul
Fayez Sarofim & Co. U.S. Men's Clay Court Championship · Round of 16
Apr 1
Zachary Svajda
Fayez Sarofim & Co. U.S. Men's Clay Court Championship · Round of 32
Mar 30
Franco Roncadelli
Munich Ultra Paraguay Open · Round of 16
Mar 19
Matchup overview
Thiago Monteiro and Adolfo Daniel Vallejo face off in the 1st Round Qualifying at Rio Open presented by Claro on Clay.
Thiago Monteiro leads 2-2 over 4 previous meetings.
Thiago Monteiro is 4-1 over the last 5 matches. Latest result: W vs Pedro Sakamoto (Mar 23).
Adolfo Daniel Vallejo is 3-2 over the last 5 matches. Latest result: W vs Henrique Rocha (Apr 21).
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