- Born
- 2004-04-28 in Asuncion, Paraguay
- Hand
- Right
- Backhand
- 2 Hands
- Height
- 183 cm
- Weight
- 75 kg
- Turned Pro
- 2023
- Coach
- Francisco Paco Cabello
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Adolfo Daniel Vallejo
Adolfo Daniel Vallejo has an impressive career record of 10–5 across 15 matches (66.7% — strong). A win rate of that calibre over 15 matches is a reliable indicator of genuine quality.
Best season: 2026 — 4–2 (66.7%) from 6 matches. The best single-season display to date — a useful reference point as the career continues to develop.
Recent Form 2026: 4–2 (66.7%). Last 6: W W W L W L — positive form, wins outweighing losses in the latest stretch.
| Date | Tournament | Srf | Rd | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 2026-04-02 | Houston | Clay | R16 | 21 | 101 | 3-6 6-4 6-4 | ||
| 2026-03-31 | Houston | Clay | R32 | 101 | 82 | 6-1 6-4 | ||
| 2026-02-26 | Santiago | Clay | R16 | 79 | 106 | 7-5 6-3 | ||
| 2026-02-25 | Santiago | Clay | R32 | 106 | 144 | 6-3 3-3 RET | ||
| 2026-02-06 | Davis Cup WG1 PO: PAR vs ROU | Clay | RR | 104 | 714 | 6-1 6-4 | ||
| 2026-02-06 | Davis Cup WG1 PO: PAR vs ROU | Clay | RR | 104 | 445 | 6-1 6-2 | ||
| 2025-09-12 | Davis Cup WG2 R1: PAR vs PAK | Clay | RR | 256 | - | 6-0 6-2 | ||
| 2024-02-03 | Davis Cup WG2 PO: PAR vs MON | Clay | RR | - | - | 6-2 6-4 | ||
| 2024-02-03 | Davis Cup WG2 PO: PAR vs MON | Clay | RR | 171 | - | 6-7(0) 6-4 6-4 | ||
| 2023-02-03 | Davis Cup WG2 PO: EGY vs PAR | - | RR | - | 666 | 6-1 0-6 6-4 |