H2H data updated: 2026-09-03 00:00 UTC
Eduardo Masso holds a 1–0 lead over Amos Mansdorf in their ATP head-to-head. Across 1 main-draw meeting, Eduardo Masso leads 1–0 on clay. Most recently, Eduardo Masso won the 1988 Roland Garros round of 128 6-4 4-6 6-3 1-0 RET.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Eduardo Masso | 6-4 4-6 6-3 1-0 (ret.) | Amos Mansdorf | Match data | May 25, 1988* | R128 | Roland Garros | Grand Slam | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Amos Mansdorf | #514 | #18 | 1,184 | 1,895 | 290 | 215 | 57.4% | 0 | 0 | 0 | 1 | 5 | 6 |
| Eduardo Masso | #1,177 | #56 | 568 | 1,685 | 41 | 69 | 37.3% | 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.
| Age | Amos Mansdorf | Eduardo Masso | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 15 | 1981 | 0–1 | 0.0% | — | 1,489 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 1983 | 1–1 | 50.0% | — | 1,499 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 1984 | 3–2 | 60.0% | #270 | 1,531 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1985 | 15–13 | 53.6% | #84 | 1,672 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1986 | 19–17 | 52.8% | #37 | 1,800 | 0 | 1 | — | — | — | — | — | — | — |
| 21 | 1987 | 35–21 | 62.5% | #27 | 1,805 | 0 | 2 | — | — | — | — | — | — | — |
| 22 | 1988 | 33–17 | 66.0% | #26 | 1,835 | 0 | 4 | 1986 | 0–4 | 0.0% | #208 | 1,457 | 0 | 0 |
| 23 | 1989 | 29–19 | 60.4% | #39 | 1,739 | 0 | 4 | 1987 | 1–2 | 33.3% | #185 | 1,472 | 0 | 0 |
| 24 | 1990 | 39–23 | 62.9% | #33 | 1,828 | 0 | 5 | 1988 | 13–14 | 48.1% | #87 | 1,602 | 0 | 0 |
| 25 | 1991 | 21–25 | 45.7% | #62 | 1,740 | 0 | 5 | 1989 | 4–10 | 28.6% | #305 | 1,566 | 0 | 0 |
| 26 | 1992 | 35–27 | 56.5% | #25 | 1,772 | 0 | 5 | 1990 | 5–6 | 45.5% | #125 | 1,593 | 0 | 0 |
| 27 | 1993 | 40–24 | 62.5% | #25 | 1,780 | 0 | 6 | 1991 | 15–19 | 44.1% | #99 | 1,619 | 0 | 0 |
| 28 | 1994 | 20–25 | 44.4% | #69 | 1,693 | 0 | 6 | 1992 | 3–14 | 17.6% | #219 | 1,519 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Amos Mansdorf | Eduardo Masso | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 15 | 1981 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1983 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1984 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1985 | 6 | 6 | 12 | 50.0% | 3 | 3 | 6 | 50.0% | 5 | 3 | 8 | 62.5% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1986 | 13 | 8 | 21 | 61.9% | 1 | 4 | 5 | 20.0% | 2 | 1 | 3 | 66.7% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1987 | 20 | 10 | 30 | 66.7% | 0 | 1 | 1 | 0.0% | 5 | 4 | 9 | 55.6% | 10 | 6 | 16 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1988 | 23 | 12 | 35 | 65.7% | 0 | 1 | 1 | 0.0% | 3 | 2 | 5 | 60.0% | 7 | 2 | 9 | 77.8% | 1986 | — | — | — | — | 0 | 3 | 3 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 23 | 1989 | 24 | 13 | 37 | 64.9% | 0 | 1 | 1 | 0.0% | 3 | 2 | 5 | 60.0% | 2 | 3 | 5 | 40.0% | 1987 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 24 | 1990 | 25 | 14 | 39 | 64.1% | 2 | 3 | 5 | 40.0% | 7 | 1 | 8 | 87.5% | 5 | 5 | 10 | 50.0% | 1988 | 3 | 5 | 8 | 37.5% | 4 | 4 | 8 | 50.0% | 2 | 2 | 4 | 50.0% | 4 | 3 | 7 | 57.1% |
| 25 | 1991 | 17 | 13 | 30 | 56.7% | 0 | 3 | 3 | 0.0% | 4 | 3 | 7 | 57.1% | 0 | 6 | 6 | 0.0% | 1989 | 3 | 3 | 6 | 50.0% | 0 | 3 | 3 | 0.0% | — | — | — | — | 1 | 4 | 5 | 20.0% |
| 26 | 1992 | 24 | 16 | 40 | 60.0% | 1 | 3 | 4 | 25.0% | 3 | 3 | 6 | 50.0% | 7 | 5 | 12 | 58.3% | 1990 | — | — | — | — | 4 | 4 | 8 | 50.0% | — | — | — | — | 1 | 2 | 3 | 33.3% |
| 27 | 1993 | 31 | 13 | 44 | 70.5% | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | 8 | 8 | 16 | 50.0% | 1991 | 4 | 8 | 12 | 33.3% | 10 | 8 | 18 | 55.6% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
| 28 | 1994 | 14 | 13 | 27 | 51.9% | 2 | 5 | 7 | 28.6% | 2 | 2 | 4 | 50.0% | 2 | 5 | 7 | 28.6% | 1992 | — | — | — | — | 0 | 10 | 10 | 0.0% | 1 | 1 | 2 | 50.0% | 2 | 3 | 5 | 40.0% |
| Career | — | 201 | 122 | 323 | 62.2% | 9 | 26 | 35 | 25.7% | 35 | 22 | 57 | 61.4% | 45 | 45 | 90 | 50.0% | — | 11 | 17 | 28 | 39.3% | 18 | 32 | 50 | 36.0% | 3 | 4 | 7 | 42.9% | 9 | 16 | 25 | 36.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 189/217 of Amos Mansdorf's and 44/51 of Eduardo Masso's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Amos Mansdorf | Eduardo Masso | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 25 | 1991 | 39/46 | 3.9 | 2.3 | 59.5% | 66.9% | 47.8% | 59.6% | 48.7% | 59.3% | 38.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 1992 | 56/62 | 4.0 | 1.9 | 58.3% | 70.7% | 54.4% | 57.3% | 36.5% | 64.0% | 38.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 1993 | 57/64 | 3.9 | 2.2 | 55.5% | 72.7% | 55.9% | 62.3% | 46.1% | 65.2% | 40.1% | 1991 | 28/34 | 0.6 | 2.6 | 67.3% | 58.1% | 47.4% | 48.3% | 47.5% | 54.2% | 40.4% |
| 28 | 1994 | 37/45 | 3.1 | 2.3 | 56.5% | 67.7% | 51.2% | 57.4% | 50.7% | 60.6% | 37.7% | 1992 | 16/17 | 1.1 | 1.5 | 76.6% | 56.9% | 44.8% | 47.8% | 41.6% | 54.1% | 39.4% |
| Career | — | 189/505 | 3.8 | 2.2 | 57.3% | 69.9% | 52.9% | 59.3% | 44.7% | 62.7% | 38.7% | — | 44/110 | 0.8 | 2.2 | 70.7% | 57.7% | 46.5% | 48.1% | 45.4% | 54.1% | 40.0% |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Amos Mansdorf | Eduardo Masso | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 15 | 1981 | 1489 | 96.6 | — | — | — | — | — | — | — | 33.3% | -2.33 | 0–1 | — | — | +0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1983 | 1499 | 102.6 | — | — | — | — | — | — | — | 60.0% | -0.20 | 0–1 | 1–0 | — | +0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1984 | 1531 | 104.3 | — | — | — | — | +32 | — | — | 60.0% | 0.00 | 2–0 | 1–0 | — | +0.76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1985 | 1672 | 131.3 | — | — | — | — | -36 | -131 | -32 | 52.9% | +0.47 | 5–4 (56%) | 3–7 (30%) | — | +1.17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1986 | 1800 | 142.4 | — | — | — | — | -19 | -254 | -125 | 54.7% | +0.53 | 3–6 (33%) | 3–6 (33%) | — | -0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1987 | 1805 | 142.3 | — | — | — | — | +11 | — | -124 | 59.9% | +0.89 | 10–9 (53%) | 7–13 (35%) | — | +1.76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1988 | 1836 | 146.9 | — | — | — | — | +64 | — | -174 | 63.4% | +0.67 | 9–6 (60%) | 13–5 (72%) | — | -0.60 | 1986 | 1458 | 101.2 | — | — | — | — | — | +37 | — | 11.1% | -2.67 | 0–1 | 0–1 | — | +0.24 |
| 23 | 1989 | 1740 | 140.4 | — | — | — | — | +39 | — | -19 | 59.0% | +0.75 | 8–5 (62%) | 10–8 (56%) | — | +0.68 | 1987 | 1472 | 114.7 | — | — | — | — | +65 | — | — | 28.6% | -1.29 | 1–0 | 0–1 | — | -0.13 |
| 24 | 1990 | 1829 | 146.5 | — | — | — | — | -3 | -306 | +23 | 58.9% | +0.65 | 9–6 (60%) | 15–9 (63%) | — | +0.66 | 1988 | 1603 | 127.2 | — | — | — | — | -10 | -71 | -28 | 44.1% | -0.81 | 7–5 (58%) | 6–4 (60%) | — | -0.57 |
| 25 | 1991 | 1740 | 143.1 | -0.65 | +0.28 | 0.950 | 49.1% | +19 | -227 | +79 | 46.1% | -0.10 | 9–7 (56%) | 5–13 (28%) | — | -3.32 | 1989 | 1567 | 106.0 | — | — | — | — | -3 | -69 | — | 31.4% | -1.89 | 2–2 (50%) | 4–1 (80%) | — | +0.01 |
| 26 | 1992 | 1772 | 149.8 | +2.43 | +0.52 | 1.057 | 51.0% | +35 | -280 | +32 | 54.5% | +0.20 | 10–8 (56%) | 15–9 (63%) | — | -0.40 | 1990 | 1594 | 127.8 | — | — | — | — | -26 | -11 | — | 48.0% | -0.32 | 2–1 (67%) | 2–1 (67%) | — | -0.54 |
| 27 | 1993 | 1780 | 154.3 | +3.76 | +1.90 | 1.154 | 52.7% | +32 | — | — | 57.2% | +0.79 | 11–7 (61%) | 14–15 (48%) | — | -0.75 | 1991 | 1619 | 127.8 | -3.84 | +1.27 | 0.882 | 47.4% | -71 | +55 | — | 41.3% | -0.61 | 5–5 (50%) | 3–7 (30%) | — | -0.97 |
| 28 | 1994 | 1694 | 129.3 | -0.97 | -0.68 | 0.957 | 49.3% | +26 | -226 | +133 | 44.0% | -0.35 | 6–5 (55%) | 10–9 (53%) | — | +1.54 | 1992 | 1519 | 114.2 | -3.66 | -0.40 | 0.858 | 46.8% | +31 | +9 | — | 27.3% | -1.34 | 1–3 (25%) | 1–8 (11%) | — | +0.07 |
| Career | — | 1895 | 149.2 | +1.53 | +0.65 | 1.039 | 50.8% | +23 | -232 | -23 | 55.6% | +0.46 | 82–65 (56%) | 97–94 (51%) | 101.0 | +0.33 | — | 1685 | 127.2 | -3.77 | +0.66 | 0.873 | 47.2% | -19 | +7 | -28 | 37.7% | -1.01 | 18–17 (51%) | 16–23 (41%) | 101.4 | -1.73 |
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 |
|---|---|---|---|---|---|
| Stefan Edberg | 0 | 10 | 10 | Aug 14, 1994 | H2H |
| Brad Gilbert | 5 | 5 | 10 | Feb 14, 1992 | H2H |
| Aaron Krickstein | 3 | 5 | 8 | Oct 21, 1993 | H2H |
| Richey Reneberg | 5 | 1 | 6 | Jul 30, 1994 | H2H |
| Wally Masur | 3 | 3 | 6 | Jun 16, 1994 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Francisco Clavet | 1 | 6 | 7 | Jul 30, 1992 | H2H |
| Javier Sanchez | 2 | 1 | 3 | Jun 18, 1992 | H2H |
| Jimmy Connors | 0 | 3 | 3 | Apr 30, 1992 | H2H |
| Horacio de la Pena | 0 | 3 | 3 | Mar 19, 1992 | H2H |
| Jan Gunnarsson | 1 | 2 | 3 | Sep 12, 1991 | H2H |