H2H data updated: 2026-09-02 00:00 UTC
Donald Watt holds a 1–0 lead over Steve Guy in their ATP head-to-head. Across 1 main-draw meeting, Donald Watt leads 1–0 on grass. Most recently, Donald Watt won the 1980 Eastbourne Open round of 64 6-3 2-6 6-3.
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 |
|---|---|---|---|---|---|---|---|---|
| Donald Watt | 6-3 2-6 6-3 | Steve Guy | Match data | Jun 4, 1980* | R64 | Eastbourne Open | ATP 250 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steve Guy | #789 | #109 | 154 | 1,529 | 16 | 35 | 31.4% | 0 | 0 | 0 | 0 | 0 | 0 |
| Donald Watt | #662 | #662 | 0 | 1,531 | 2 | 1 | 66.7% | 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.
| Steve Guy | Donald Watt | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1980 | 0–1 | 0.0% | — | 1,484 | 0 | 0 | 1980 | 2–1 | 66.7% | — | 1,521 | 0 | 0 |
| 1984 | 2–4 | 33.3% | #270 | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 1985 | 0–2 | 0.0% | #300 | 1,461 | 0 | 0 | — | — | — | — | — | — | — |
| 1986 | 2–3 | 40.0% | #162 | 1,466 | 0 | 0 | — | — | — | — | — | — | — |
| 1987 | 0–5 | 0.0% | #231 | 1,417 | 0 | 0 | — | — | — | — | — | — | — |
| 1988 | 4–7 | 36.4% | #173 | 1,444 | 0 | 0 | — | — | — | — | — | — | — |
| 1989 | 4–8 | 33.3% | #241 | 1,464 | 0 | 0 | — | — | — | — | — | — | — |
| 1990 | 4–4 | 50.0% | #220 | 1,516 | 0 | 0 | — | — | — | — | — | — | — |
| 1991 | 0–1 | 0.0% | #448 | 1,503 | 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.
| Steve Guy | Donald Watt | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | 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 % | W | L | M | Win % | W | L | M | Win % | ||
| 1980 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1980 | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — |
| 1984 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | 2 | 2 | 4 | 50.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1988 | 1 | 4 | 5 | 20.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1989 | 3 | 7 | 10 | 30.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1990 | 4 | 3 | 7 | 57.1% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1991 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 12 | 22 | 34 | 35.3% | 2 | 4 | 6 | 33.3% | 0 | 4 | 4 | 0.0% | 2 | 5 | 7 | 28.6% | Career | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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.
| Steve Guy | Donald Watt | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1980 | 1484 | 99.3 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.16 | 1980 | 1521 | 101.7 | — | — | — | — | — | — | +63 | 50.0% | -0.37 | 2–0 | 1–0 | — | +0.47 |
| 1984 | 1481 | 106.4 | — | — | — | — | +47 | — | — | 38.5% | -0.46 | 0–1 | 2–2 (50%) | — | +0.70 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | 1462 | 97.7 | — | — | — | — | — | — | — | 0.0% | -3.25 | — | — | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1986 | 1467 | 99.6 | — | — | — | — | +41 | — | — | 38.5% | -0.38 | 2–1 (67%) | 1–1 | — | +0.59 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1987 | 1418 | 96.5 | — | — | — | — | +52 | — | — | 15.4% | -1.85 | 0–1 | 0–3 (0%) | — | +0.26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1988 | 1445 | 105.0 | — | — | — | — | +33 | +75 | — | 38.5% | -0.85 | 1–2 (33%) | 2–3 (40%) | — | +0.94 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1989 | 1464 | 119.9 | — | — | — | — | +13 | — | — | 43.3% | -0.43 | 0–4 (0%) | 1–3 (25%) | — | +0.37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1990 | 1517 | 116.6 | — | — | — | — | +28 | — | — | 50.0% | -0.05 | 2–2 (50%) | 0–3 (0%) | — | +0.12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1991 | 1503 | 97.3 | -0.76 | +2.69 | 0.679 | 42.0% | — | — | — | 0.0% | -3.50 | — | — | — | +0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1530 | 111.6 | -0.76 | +2.69 | 0.679 | 42.0% | +31 | +75 | — | 37.1% | -0.75 | 5–12 (29%) | 6–15 (29%) | 92.0 | +6.47 | Career | 1531 | 101.0 | — | — | — | — | — | — | +63 | 50.0% | -0.37 | 2–0 | 1–0 | — | +15.67 |
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 |
|---|---|---|---|---|---|
| Alexander Mronz | 1 | 1 | 2 | Oct 19, 1989 | H2H |
| Jason Stoltenberg | 0 | 2 | 2 | Apr 19, 1989 | H2H |
| Johan Carlsson | 1 | 1 | 2 | Apr 13, 1989 | H2H |
| Bud Schultz | 0 | 2 | 2 | Jan 14, 1987 | H2H |
| MaliVai Washington | 0 | 1 | 1 | Jan 10, 1991 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tim Wilkison | 0 | 1 | 1 | Jun 6, 1980 | H2H |
| Rand Evett | 1 | 0 | 1 | Jun 5, 1980 | H2H |
| Steve Guy | 1 | 0 | 1 | Jun 4, 1980 | H2H |