Adolfo Daniel Vallejo and Emilio Nava will clash against each other in the semifinal of the Asuncion Challenger for the 2nd time in their career. They are scheduled to play on Saturday at 6:00 pm on CANCHA CENTRAL. In this post, we analyze their head to head performance and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Emilio Nava who should win in 3 sets.
As per the initial odds, Emilio Nava is the pick to win this match.
Emilio Nava -> 1.51
Adolfo Daniel Vallejo -> 2.42
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Prediction and head to head Adolfo Daniel Vallejo vs. Emilio Nava
This will be the 2nd time that Adolfo Daniel Vallejo and Emilio Nava clash against each other. The head to head is 1-0 for Nava (see full H2H stats), 1-0 on clay.
The last time that they fought against each other, Nava won 3-6 6-3 6-2 in the 1st round in the Punta Del Este Challenger back in January 2025.
Adolfo Daniel Vallejo
15 - 10win/loss
187
187
LWWWLLWLWW | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 15-10 | 1-2 | 14-8 | 0-0 | 0-0 | 0-0 |
| 2024 | 33-27 | 7-4 | 26-23 | 0-0 | 0-0 | 0-0 |
| 2023 | 30-25 | 6-8 | 24-17 | 0-0 | 0-0 | 0-0 |
| 2022 | 23-17 | 17-8 | 4-6 | 2-3 | 0-0 | 0-0 |
| 2021 | 1-2 | 0-0 | 1-2 | 0-0 | 0-0 | 0-0 |
Ranked no. 187 (career-high), Daniel Vallejo reached the semifinal after defeating Santiago Rodriguez Taverna 6-3 7-6(5), Franco Roncadelli 6-2 6-3 and Daniel Elahi Galan 6-2 6-2.
In the quarter, Daniel Vallejo had a good straight sets win against Elahi Galan Riveros (6-2 6-2). During the match, Daniel Vallejo scored 61 points vs Elahi Galan Riveros’s 37. The Paraguayan was pretty aggressive to blast 19 winners.
Talking about the service games, Daniel Vallejo scored just 1 ace throughout the encounter and he committed only 2 double faults. Overall, Adolfo Daniel Vallejo was exceptionally efficient on serve to win 76% (19/25) of his 1st serve and 79% (11/14) on the second serve. However, this didn’t prevent his to concede the serve once. Adolfo broke Elahi Galan Riveros 5 times after converting 50% of his break points (5/10).
Overall Performance in this tournament
The Paraguayan hasn’t conceded yet a set in this competition to win 57% of the points he played.
Daniel Vallejo has a winning win-loss record in the last 6 years having won 57% of his matches (104-80). 14-7 on clay in 2025. Talking about his performance on the same surface of this tournament, Daniel Vallejo has an aggregate71-55 record in the last 6 years on clay.
The Paraguayan’s best result of the current year was getting to the final in the Buenos Aires Challenger and M25 Punta del Este.
Daniel Vallejo has a composed 15-9 win-loss record in 2025, 14-7 on clay (See FULL STATS).
Previously in the Asuncion Challenger
Emilio Nava
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 17-9 | 0-2 | 17-7 | 0-0 | 0-0 | 0-0 |
| 2024 | 34-34 | 16-15 | 8-9 | 8-5 | 2-5 | 0-0 |
| 2023 | 40-31 | 24-14 | 12-8 | 4-9 | 0-0 | 0-0 |
| 2022 | 41-27 | 15-15 | 14-6 | 12-6 | 0-0 | 0-0 |
| 2021 | 40-16 | 9-6 | 27-7 | 4-3 | 0-0 | 0-0 |
Ranked no. 235, the American reached the semifinal after beating Lorenzo Joaquin Rodriguez 6-4 6-2, Juan Pablo Varillas 6-7(4) 6-2 6-2 and Tomas Barrios Vera 2-6 6-3 7-5.
In the quarter against Tomas Barrios Vera, The American recovered from a 1-set down deficit before winning (2-6 6-3 7-5). During the match Nava scored 94 points vs Tomas Barrios Vera’s 93. Nava was quite aggressive to blast 41 winners.
Talking about serving, Nava managed to score 10 aces and he committed only 1 double fault for the entire match. Emilio Nava lost the serve 3 times and he saved 3 break points. Furthermore, Nava put 65% of his first serves in, winning 66% (41/62) of the points behind his 1st serve and 52% (17/33) on the 2nd serve. Emilio broke Tomas Barrios Vera 4 times after converting 57% of his break points (4/7).
Overall Performance in this tournament
Emilio has conceded 2 set in the tournament to win 53% of the points he played.
Nava’s best result of the year was reaching the semifinal in the Punta Del Este Challenger and the Santiago Challenger.
The American has an aggregate 15-9 win-loss record in 2025, 15-7 on clay (See FULL STATS).
Previously in the Asuncion Challenger
Nava has never competed in this tournament before.
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Daniel Vallejo | Nava |
|---|---|---|
| Match played | 3 | 3 |
| Tot Set | 6 | 8 |
| Tot Games | 55 | 76 |
| Pts | 204-157 | 256-224 |
| Total Points | 361 | 480 |
| Winners | 79 | 115 |
| %Winners | 39% | 45% |
Both Daniel Vallejo and Nava played 3 matches. At the moment, Emilio Nava conceded 2 sets while Adolfo Daniel Vallejo hasn’t conceded a set so far. Daniel Vallejo has played 2 set(s) less than Nava (6 vs 8). Therefore, Daniel Vallejo played 21 games less than Nava. Adolfo scored 79 winners (39% of the total points). On the other side, Emilio managed to score 115 winners (45%).
Serve Performance
| Serve | Daniel Vallejo | Nava |
|---|---|---|
| Aces | 4 | 24 |
| Avg per match | 1.3 | 8 |
| 1st in | 103/161 | 158/247 |
| %1st in | 64% | 64% |
| 1st pts | 79/103 | 115/158 |
| %1st pts | 77% | 73% |
| 2nd pts | 29/58 | 43/89 |
| %2nd pts | 50% | 48% |
Daniel Vallejo blasted 4 aces (1.3 per match). Nava bagged 24 aces (8 per match). Daniel Vallejo won 77% points on his first serve. He extremely effective on his second serve to win 50% of the points. On the other side, Nava won 73% of the points behind his first serve. He had a solid display on his second serve to win 48% of the points.
How they played the important points
| Breaks | Daniel Vallejo | Nava |
|---|---|---|
| Won | 14 | 13 |
| Converted | 14/30 | 13/23 |
| % Converted | 47% | 57% |
| Conceded | 11 | 14 |
| Saved | 7 | 9 |
| % Saved | 64% | 64% |
| Times Broken | 4 | 5 |
Adolfo broke his opponents 14 times with a 47% conversion rate. Adolfo lost his serve 4 times and he saved 64% of the break points that he conceded. The American broke his opponents 13 times with a 57% conversion rate. Nava conceded his serve 5 times and he saved 64% of the break points that he conceded.
| Daniel Vallejo | |||||
| R1 Rodriguez Taverna |
R2 Roncadelli |
1/4 Elahi Galan Riveros |
Total | ||
|---|---|---|---|---|---|
| Score | 6-3 7-65 | 6-2 6-3 | 6-2 6-2 | ||
| Tot Set | 2 | 2 | 2 | 6 | |
| Tot Games | 22 | 17 | 16 | 55 | |
| pts | 75-66 | 68-54 | 61-37 | 204-157 | |
| Total points | 141 | 122 | 98 | 361 | |
| Winners | 34 | 26 | 19 | 79 | |
| %Winners | 45% | 38% | 31% | 39% | |
| SERVE | |||||
| Aces | 2 | 1 | 1 | 4 | |
| Double Faults | 2 | 6 | 2 | 10 | |
| 1st in | 45/66 | 33/56 | 25/39 | 103/161 | |
| % 1st in | 68% | 59% | 64% | 64% | |
| 1st pts | 34/45 | 26/33 | 19/25 | 79/103 | |
| % 1st pts | 76% | 79% | 76% | 77% | |
| 2nd pts | 9/21 | 9/23 | 11/14 | 29/58 | |
| % 2nd pts | 43% | 39% | 79% | 50% | |
| Breaks | |||||
| Won | 4 | 5 | 5 | 14 | |
| Converted | 4/7 | 5/13 | 5/10 | 14/30 | |
| Converted % | 57% | 38% | 50% | 47% | |
| Conceded | 4 | 6 | 1 | 11 | |
| Saved | 2/4 | 5/6 | 0/1 | 7 | |
| Saved % | 50% | 83% | 0% | 44% | |
| Times Broken | 2 | 1 | 1 | 4 | |
| Nava | |||||
| R1 Joaquin |
R2 Pablo Patino-Samudio |
1/4 Tomas Barrios Vera |
Total | ||
|---|---|---|---|---|---|
| Score | 6-4 6-2 | 6-74 6-2 6-2 | 2-6 6-3 7-5 | ||
| Tot Set | 2 | 3 | 3 | 8 | |
| Tot Games | 18 | 29 | 29 | 76 | |
| pts | 64-51 | 98-80 | 94-93 | 256-224 | |
| Total points | 115 | 178 | 187 | 480 | |
| Winners | 33 | 41 | 41 | 115 | |
| %Winners | 52% | 42% | 44% | 45% | |
| SERVE | |||||
| Aces | 5 | 9 | 10 | 24 | |
| Double Faults | 5 | 1 | 1 | 7 | |
| 1st in | 39/60 | 57/92 | 62/95 | 158/247 | |
| % 1st in | 65% | 62% | 65% | 64% | |
| 1st pts | 33/39 | 41/57 | 41/62 | 115/158 | |
| % 1st pts | 85% | 72% | 66% | 73% | |
| 2nd pts | 8/21 | 18/35 | 17/33 | 43/89 | |
| % 2nd pts | 38% | 51% | 52% | 48% | |
| Breaks | |||||
| Won | 3 | 6 | 4 | 13 | |
| Converted | 3/4 | 6/12 | 4/7 | 13/23 | |
| Converted % | 75% | 50% | 57% | 57% | |
| Conceded | 2 | 6 | 6 | 14 | |
| Saved | 2/2 | 4/6 | 3/6 | 9 | |
| Saved % | 100% | 67% | 50% | 72% | |
| Times Broken | 0 | 2 | 3 | 5 | |
Head 2 Head
LWWWLLWLWW
WWWWWLWWWL Tennis Scores in Asuncion Challenger
- Adolfo Daniel VallejoDaniel Vallejo – Daniel Elahi GalanElahi Galan (6-2 6-2) – See score progression
- Thiago Moura MonteiroMoura Monteiro – Alvaro Guillen MezaGuillen Meza (6-4 6-4) – See score progression
- Emilio NavaNava – Tomas Barrios VeraBarrios Vera (2-6 6-3 7-5) – See score progression
- Matheus Pucinelli De AlmeidaPucinelli De Almeida – Roman Andres BurruchagaAndres Burruchaga (6-3 6-4) – See score progression
- Arklon Huertas Del Pino/Conner Huertas Del PinoHuertas Del Pino/Conner Huertas Del Pino – Cristian Rodriguez/Marcelo ZormannRodriguez/Marcelo Zormann (6-4 6-2) – See score progression
- Guillermo Duran/Mariano KestelboimDuran/Mariano Kestelboim – Hernan Casanova/Santiago Rodriguez TavernaCasanova/Santiago Rodriguez Taverna (6-3 7-5) – See score progression
- Emilio NavaNava – Tomas Barrios VeraBarrios Vera (2-6 6-3 7-5) – See score progression
Upcoming matches in the draw
- Thiago Moura MonteiroMoura Monteiro – Matheus Pucinelle De AlmeidaPucinelle De Almeida (0-0) – H2H and prediction
- Emilio NavaNava – (1-0) – H2H and prediction
