H2H data updated: 2026-09-02 00:00 UTC

Jaime Oncins vs Dan Cassidy H2H: 0-1

Dan Cassidy holds a 1–0 lead over Jaime Oncins in their ATP head-to-head. Across 1 main-draw meeting, Dan Cassidy leads 1–0 on hard courts. Most recently, Dan Cassidy won the 1988 Sao Paulo round of 16 6-4 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.

Jaime Oncins
BRA Age 56 Right-Handed 196 cm / 6'5"
H2H
0 – 1
1 main draw meetings
Dan Cassidy
USA Right-Handed 178 cm / 5'10"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Dan Cassidy #197 6-4 6-3 Jaime Oncins #326 Match data Nov 4, 1988* R16 Sao Paulo ATP 250 Hard

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.

Career Comparison

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
Jaime Oncins #1,034 #34 773 1,810 64 87 42.4% 0 0 0 0 2 2
Dan Cassidy #753 #74 187 1,629 35 75 31.8% 0 0 0 0 1 1

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.

Jaime Oncins Dan Cassidy
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1988 1–2 33.3% #314 1,493 0 0 1969 0–1 0.0% — 1,485 0 0
1989 0–2 0.0% #263 1,470 0 0 1984 12–8 60.0% #126 1,629 0 1
1990 0–4 0.0% #113 1,442 0 0 1985 7–19 26.9% #219 1,509 0 1
1991 22–17 56.4% #64 1,677 0 0 1986 2–6 25.0% #274 1,511 0 1
1992 27–19 58.7% #48 1,778 0 2 1987 4–3 57.1% #106 1,565 0 1
1993 11–23 32.4% #133 1,584 0 2 1988 7–21 25.0% #227 1,515 0 1
1994 1–7 12.5% #230 1,505 0 2 1989 3–10 23.1% #140 1,456 0 1
1995 1–2 33.3% #222 1,508 0 2 1990 0–7 0.0% #381 1,401 0 1
1996 0–2 0.0% #160 1,491 0 2 — — — — — — —
1997 0–6 0.0% #166 1,439 0 2 — — — — — — —
1998 1–2 33.3% #223 1,451 0 2 — — — — — — —
2001 0–1 0.0% #1031 1,438 0 2 — — — — — — —

Surface Results by Career Season

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.

Jaime Oncins Dan Cassidy
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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 %
1988 1 2 3 33.3% — — — — — — — — — — — — 1969 — — — — — — — — 0 1 1 0.0% — — — —
1989 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% 1984 6 4 10 60.0% 0 1 1 0.0% 6 3 9 66.7% — — — —
1990 0 2 2 0.0% — — — — — — — — 0 2 2 0.0% 1985 5 8 13 38.5% 1 3 4 25.0% 1 5 6 16.7% 0 3 3 0.0%
1991 13 10 23 56.5% 7 5 12 58.3% 2 2 4 50.0% — — — — 1986 0 4 4 0.0% 2 2 4 50.0% — — — — — — — —
1992 12 11 23 52.2% 15 8 23 65.2% — — — — — — — — 1987 3 1 4 75.0% 1 2 3 33.3% — — — — — — — —
1993 4 7 11 36.4% 7 15 22 31.8% — — — — 0 1 1 0.0% 1988 7 13 20 35.0% 0 4 4 0.0% 0 1 1 0.0% 0 3 3 0.0%
1994 1 2 3 33.3% 0 5 5 0.0% — — — — — — — — 1989 2 8 10 20.0% — — — — — — — — 1 2 3 33.3%
1995 — — — — 1 2 3 33.3% — — — — — — — — 1990 0 3 3 0.0% 0 1 1 0.0% — — — — 0 3 3 0.0%
1996 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1997 0 3 3 0.0% 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1998 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
2001 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 32 42 74 43.2% 30 39 69 43.5% 2 2 4 50.0% 0 4 4 0.0% Career 23 41 64 35.9% 4 13 17 23.5% 7 10 17 41.2% 1 11 12 8.3%

Advanced Statistics Comparison by Career Season

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.

Jaime Oncins Dan Cassidy
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
1988 1493 95.3 — — — — +23 — — 42.9% -1.86 0–1 3–0 (100%) — +0.30 1969 1486 102.3 — — — — — — — 25.0% -1.00 — — — -0.08
1989 1471 95.4 — — — — — — — 0.0% -3.50 — — — +0.19 1984 1630 119.1 — — — — -17 — +2 58.3% +0.25 3–3 (50%) 9–5 (64%) — +1.87
1990 1442 102.8 — — — — +19 — — 20.0% -2.00 0–2 — — -0.15 1985 1510 112.1 — — — — +51 -19 +47 31.4% -1.29 4–4 (50%) 4–8 (33%) — +0.61
1991 1677 121.5 +0.13 +1.64 1.068 51.1% -83 -50 -66 55.6% +0.24 5–9 (36%) 5–4 (56%) — +1.89 1986 1512 118.0 — — — — +6 +35 — 30.0% -1.20 2–2 (50%) 0–1 — -0.59
1992 1778 131.6 -1.02 +2.52 1.052 50.9% -123 +21 — 58.1% +0.28 7–7 (50%) 11–3 (79%) — +1.08 1987 1565 111.6 — — — — -9 -18 — 47.1% -0.23 3–0 (100%) 2–1 (67%) — +0.25
1993 1584 130.7 -3.35 +1.16 0.920 48.2% +18 +63 — 39.3% -0.56 5–11 (31%) 2–9 (18%) — -0.21 1988 1515 119.8 — — — — +22 -24 — 29.2% -1.37 0–3 (0%) 1–5 (17%) — -0.50
1994 1506 104.0 -2.79 -0.18 0.883 47.5% +74 +44 — 36.4% -0.86 0–6 (0%) 0–2 — +0.29 1989 1457 105.2 — — — — +10 — — 37.8% -1.13 0–6 (0%) 3–3 (50%) — +0.90
1995 1509 108.4 +0.94 -0.26 0.977 49.5% — +44 — 33.3% -0.50 — — — -0.02 1990 1402 99.8 — — — — +26 — — 12.5% -2.44 0–2 0–3 (0%) — +0.08
1996 1491 108.9 +1.07 +2.59 0.821 45.2% — — — 28.6% -2.14 0–1 1–1 — -0.08 — — — — — — — — — — — — — — — —
1997 1439 112.1 -3.40 -1.77 0.729 43.8% +88 +85 — 13.3% -1.93 0–1 0–2 — -0.45 — — — — — — — — — — — — — — — —
1998 1451 107.4 -1.60 -1.30 0.730 43.1% +85 — — 33.3% -1.17 — 1–1 — -0.07 — — — — — — — — — — — — — — — —
2001 1438 100.2 +0.01 -0.73 0.903 49.0% — — — 33.3% -0.33 0–1 0–1 — +0.18 — — — — — — — — — — — — — — — —
Career 1810 127.5 -1.35 +1.50 0.987 49.6% -49 +28 -66 47.0% -0.28 17–39 (30%) 23–23 (50%) 90.4 +1.95 Career 1630 118.6 — — — — +19 -6 +20 36.1% -1.01 12–20 (38%) 19–26 (42%) 94.0 +2.31

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.