H2H data updated: 2026-09-09 00:00 UTC
Gustavo Guerrero holds a 1–0 lead over Helmar Stiegler in their ATP head-to-head. Across 1 main-draw meeting, Gustavo Guerrero leads 1–0 on clay. Most recently, Gustavo Guerrero won the 1980 Brussels round of 32 6-3 6-4.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Gustavo Guerrero | 6-3 6-4 | Helmar Stiegler | Match data | Jun 12, 1980* | R32 | Brussels | ATP 250 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gustavo Guerrero | #1,235 | #78 | 9 | 1,521 | 6 | 20 | 23.1% | 0 | 0 | 0 | 0 | 0 | 0 |
| Helmar Stiegler | #620 | #224 | 0 | 1,500 | 1 | 11 | 8.3% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Gustavo Guerrero | Helmar Stiegler | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1971 | 0–1 | 0.0% | — | 1,479 | 0 | 0 | 1977 | 0–1 | 0.0% | — | 1,489 | 0 | 0 |
| 1979 | 0–1 | 0.0% | #347 | 1,466 | 0 | 0 | 1980 | 1–7 | 12.5% | #224 | 1,435 | 0 | 0 |
| 1980 | 3–4 | 42.9% | #84 | 1,493 | 0 | 0 | 1981 | 0–2 | 0.0% | — | 1,412 | 0 | 0 |
| 1981 | 1–9 | 10.0% | #100 | 1,450 | 0 | 0 | 1983 | 0–1 | 0.0% | #358 | 1,401 | 0 | 0 |
| 1983 | 0–1 | 0.0% | #337 | 1,444 | 0 | 0 | — | — | — | — | — | — | — |
| 1984 | 0–1 | 0.0% | #320 | 1,439 | 0 | 0 | — | — | — | — | — | — | — |
| 1985 | 1–1 | 50.0% | #201 | 1,451 | 0 | 0 | — | — | — | — | — | — | — |
| 1986 | 0–1 | 0.0% | #312 | 1,437 | 0 | 0 | — | — | — | — | — | — | — |
| 1987 | 1–1 | 50.0% | #266 | 1,452 | 0 | 0 | — | — | — | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Gustavo Guerrero | Helmar Stiegler | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Carpet | Yr | Hard | Clay | Carpet | ||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1971 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1977 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1979 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1980 | 0 | 1 | 1 | 0.0% | 1 | 4 | 5 | 20.0% | 0 | 2 | 2 | 0.0% |
| 1980 | — | — | — | — | 3 | 4 | 7 | 42.9% | — | — | — | — | 1981 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1981 | — | — | — | — | 1 | 9 | 10 | 10.0% | — | — | — | — | 1983 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1983 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | — | — | — | 6 | 20 | 26 | 23.1% | — | — | — | — | Career | 0 | 3 | 3 | 0.0% | 1 | 6 | 7 | 14.3% | 0 | 2 | 2 | 0.0% |
Rows are aligned in career order because complete birth data is unavailable. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Gustavo Guerrero | Helmar Stiegler | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
| 1971 | 1479 | 94.9 | — | — | — | — | — | — | — | 0.0% | -4.67 | — | — | — | +0.15 | 1977 | 1489 | 95.1 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.10 |
| 1979 | 1466 | 95.5 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.14 | 1980 | 1435 | 96.3 | — | — | — | — | +59 | +56 | — | 21.1% | -1.90 | 1–2 (33%) | 0–3 (0%) | 95.9 | +0.86 |
| 1980 | 1494 | 114.5 | — | — | — | — | — | +31 | — | 47.1% | -0.88 | 1–2 (33%) | 2–1 (67%) | 101.0 | +0.54 | 1981 | 1413 | 99.3 | — | — | — | — | — | — | — | 20.0% | -1.40 | 0–1 | — | — | +0.28 |
| 1981 | 1450 | 102.4 | — | — | — | — | — | +10 | — | 15.8% | -2.32 | 1–0 | — | — | +0.11 | 1983 | 1401 | 97.0 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.12 |
| 1983 | 1445 | 98.3 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | 0–1 | — | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 1439 | 102.6 | — | — | — | — | — | — | — | 0.0% | -3.33 | — | — | — | -0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | 1451 | 102.4 | — | — | — | — | — | — | — | 40.0% | -0.60 | 1–0 | — | — | +0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | 1438 | 98.2 | — | — | — | — | — | — | — | 33.3% | -2.00 | 0–1 | — | — | +0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | 1453 | 106.6 | — | — | — | — | — | — | — | 50.0% | -0.75 | — | 1–0 | — | +0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1522 | 106.4 | — | — | — | — | — | +19 | — | 27.6% | -1.85 | 3–3 (50%) | 3–2 (60%) | 103.3 | +5.00 | Career | 1500 | 95.0 | — | — | — | — | +59 | +56 | — | 17.9% | -2.08 | 1–3 (25%) | 0–3 (0%) | 94.6 | +11.33 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ricardo Cano | 0 | 2 | 2 | May 21, 1981 | H2H |
| Cassio Motta | 0 | 1 | 1 | Nov 20, 1987 | H2H |
| Ricki Osterthun | 1 | 0 | 1 | Nov 19, 1987 | H2H |
| Gerardo Vacarezza | 0 | 1 | 1 | Nov 13, 1986 | H2H |
| Martin Jaite | 0 | 1 | 1 | Mar 1, 1985 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Gustavo Tiberti | 0 | 1 | 1 | Jul 20, 1983 | H2H |
| Klaus Eberhard | 0 | 1 | 1 | Jul 16, 1981 | H2H |
| Claudio Panatta | 0 | 1 | 1 | Apr 2, 1981 | H2H |
| Tom Okker | 0 | 1 | 1 | Nov 20, 1980 | H2H |
| Bruce Manson | 0 | 1 | 1 | Oct 22, 1980 | H2H |