H2H data updated: 2026-07-18 13:17 UTC
Learner Tien vs Adolfo Daniel Vallejo H2H: 0-1
Adolfo Daniel Vallejo holds a 1–0 lead over Learner Tien in their ATP head-to-head. Across 1 main-draw meeting, Adolfo Daniel Vallejo leads 1–0 on clay. Most recently, Adolfo Daniel Vallejo won the 2026 Mutua Madrid Open second round 6-4 6-3.
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United States
Age 20
Left-Handed
180 cm / 5'11"
H2H
0
–
1
1 main draw meetings
Paraguay
Age 22
Right-Handed
185 cm / 6'1"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Apr 25, 2026 | Mutua Madrid Open | Masters 1000 | R64 | Clay | Adolfo Daniel Vallejo | 6-4 6-3 | Learner Tien | Match data |
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Learner Tien | #15 | #15 | 2,290 | 1,949 | 51 | 40 | 56.0% | 0 | 0 | 0 | 0 | 1 | 1 |
| Adolfo Daniel Vallejo | #71 | #70 | 830 | 1,647 | 8 | 6 | 57.1% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Learner Tien | Adolfo Daniel Vallejo | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 2022 | 0–1 | 0.0% | #860 | 1,495 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 2023 | 0–1 | 0.0% | #452 | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2024 | 3–2 | 60.0% | #122 | 1,568 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2025 | 27–24 | 52.9% | #28 | 1,860 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2026 | 21–12 | 63.6% | #15 | 1,883 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | 2026 | 8–6 | 57.1% | #71 | 1,608 | 0 | 0 |