Thiago Monteiro defeated Dusan Lajovic 6-4 6-3 in the Madrid Masters round of 128 on clay. The upset overturned the form book — Dusan Lajovic came in ranked #146, defending last year's round of 32. Thiago Monteiro extended the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-02-16 | Rio de Janeiro | Q2 | clay | Thiago Monteiro | 2-6 6-3 6-3 |
| 2022-10-24 | Vienna | Q1 | hard | Thiago Monteiro | 6-4 6-2 |
| 2022-10-22 | Vienna | Q16 | hard | Thiago Monteiro | 6-4 6-2 |
| 2019-05-27 | Roland Garros | R128 | clay | Dusan Lajovic | 6-3 6-4 6-4 |
| 2017-07-17 | Bastad | R32 | clay | Thiago Monteiro | 6-3 0-0 |
| 2016-08-08 | Los Cabos | R32 | hard | Dusan Lajovic | 6-3 6-4 |
| 2014-02-24 | Sao Paulo | Q2 | clay | Dusan Lajovic | 6-3 7-5 |
Averages over each player's completed matches in the selected window (133 vs 130). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Monteiro T.: 16 days rest · Lajovic D.: 2 days rest · 4 matches, 94 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About