H2H data updated: 2026-09-07 00:00 UTC

Grant Stafford vs Marcos Ondruska H2H: 0-3

Marcos Ondruska holds a 3–0 lead over Grant Stafford in their ATP head-to-head. Across 3 main-draw meetings, Marcos Ondruska leads 3–0 on hard courts. Most recently, Marcos Ondruska won the 1997 Canadian Open round of 64 4-6 7-5 6-2.

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Grant Stafford
RSA Age 55 Right-Handed 188 cm / 6'2"
H2H
0 – 3
3 main-draw meetings
Marcos Ondruska
RSA Age 53 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marcos Ondruska #107 4-6 7-5 6-2 Grant Stafford #80 Match data Jul 30, 1997* R64 Canadian Open Masters 1000 Hard
Marcos Ondruska #107 5-7 7-6(7) 6-2 Grant Stafford #92 Match data Jul 17, 1996* R64 Washington Open Championship Series → modern equivalent ATP 500 Hard
Marcos Ondruska #100 6-3 4-6 6-2 Grant Stafford #301 Match data Aug 16, 1995* R64 Indianapolis ATP Championship Series → modern equivalent ATP 500 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
Grant Stafford #1,161 #53 750 1,807 83 111 42.8% 0 0 0 0 0 0
Marcos Ondruska #1,352 #27 1,007 1,786 106 138 43.4% 0 0 0 0 0 0

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.

Age Grant Stafford Marcos Ondruska
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1990 3–3 50.0% #256 1,537 0 0
18 — — — — — — — 1991 3–5 37.5% #137 1,589 0 0
19 1990 0–1 0.0% #264 1,492 0 0 1992 11–10 52.4% #67 1,640 0 0
20 1991 5–6 45.5% #172 1,552 0 0 1993 26–29 47.3% #47 1,568 0 0
21 1992 4–4 50.0% #191 1,635 0 0 1994 15–17 46.9% #98 1,686 0 0
22 1993 17–14 54.8% #86 1,717 0 0 1995 16–19 45.7% #114 1,665 0 0
23 1994 11–21 34.4% #168 1,558 0 0 1996 17–20 45.9% #102 1,675 0 0
24 1995 2–7 22.2% #288 1,530 0 0 1997 12–16 42.9% #113 1,656 0 0
25 1996 10–13 43.5% #83 1,563 0 0 1998 2–10 16.7% #142 1,541 0 0
26 1997 21–20 51.2% #74 1,657 0 0 1999 0–2 0.0% #159 1,520 0 0
27 1998 12–21 36.4% #163 1,564 0 0 2000 0–5 0.0% #204 1,477 0 0
28 1999 0–3 0.0% #475 1,535 0 0 2001 1–2 33.3% #263 1,569 0 0
29 2000 1–1 50.0% #435 1,592 0 0 — — — — — — —

Surface Results by Age

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 Grant Stafford Marcos Ondruska
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 %
17 — — — — — — — — — — — — — — — — — 1990 3 3 6 50.0% — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1991 1 3 4 25.0% 2 1 3 66.7% — — — — 0 1 1 0.0%
19 1990 0 1 1 0.0% — — — — — — — — — — — — 1992 7 7 14 50.0% 4 1 5 80.0% 0 2 2 0.0% — — — —
20 1991 5 4 9 55.6% — — — — — — — — 0 2 2 0.0% 1993 12 11 23 52.2% 10 11 21 47.6% 4 3 7 57.1% 0 4 4 0.0%
21 1992 2 3 5 40.0% — — — — 2 1 3 66.7% — — — — 1994 11 9 20 55.0% 3 5 8 37.5% 1 2 3 33.3% 0 1 1 0.0%
22 1993 13 11 24 54.2% — — — — 4 3 7 57.1% — — — — 1995 11 12 23 47.8% 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0%
23 1994 9 12 21 42.9% 2 5 7 28.6% 0 3 3 0.0% 0 1 1 0.0% 1996 13 13 26 50.0% 0 3 3 0.0% 2 3 5 40.0% 2 1 3 66.7%
24 1995 2 5 7 28.6% 0 1 1 0.0% 0 1 1 0.0% — — — — 1997 6 10 16 37.5% 4 3 7 57.1% 1 2 3 33.3% 1 1 2 50.0%
25 1996 3 8 11 27.3% — — — — 5 2 7 71.4% 2 3 5 40.0% 1998 2 7 9 22.2% 0 1 1 0.0% — — — — 0 2 2 0.0%
26 1997 10 11 21 47.6% 4 3 7 57.1% 6 4 10 60.0% 1 2 3 33.3% 1999 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
27 1998 8 12 20 40.0% 1 5 6 16.7% 3 4 7 42.9% — — — — 2000 0 4 4 0.0% — — — — 0 1 1 0.0% — — — —
28 1999 0 2 2 0.0% — — — — 0 1 1 0.0% — — — — 2001 0 1 1 0.0% 1 1 2 50.0% — — — — — — — —
29 2000 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 53 70 123 43.1% 7 14 21 33.3% 20 19 39 51.3% 3 8 11 27.3% — 66 81 147 44.9% 25 30 55 45.5% 11 16 27 40.7% 4 11 15 26.7%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 168/193 of Grant Stafford's and 206/238 of Marcos Ondruska'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 Grant Stafford Marcos Ondruska
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%
18 — —/— — — — — — — — — — 1991 6/8 0.8 1.2 60.4% 61.6% 45.5% 53.7% 54.4% 53.8% 38.1%
19 — —/— — — — — — — — — — 1992 18/21 1.6 2.1 63.0% 62.9% 49.3% 50.1% 45.0% 57.6% 45.0%
20 1991 10/11 1.6 2.9 66.6% 61.7% 43.9% 53.1% 40.6% 55.5% 39.0% 1993 52/55 2.1 3.6 58.9% 64.5% 48.0% 56.6% 45.3% 57.6% 41.2%
21 1992 8/8 3.6 5.8 60.4% 64.4% 34.5% 42.1% 40.5% 53.0% 42.7% 1994 28/32 2.9 3.9 55.5% 68.3% 46.4% 53.4% 52.7% 58.4% 41.4%
22 1993 25/31 2.3 3.2 61.9% 66.5% 46.6% 53.3% 50.5% 59.1% 44.0% 1995 35/35 3.6 3.8 55.6% 69.3% 45.9% 59.4% 50.1% 59.1% 39.7%
23 1994 26/32 2.3 4.2 60.8% 64.3% 43.2% 48.3% 39.9% 56.0% 39.8% 1996 28/37 3.4 2.9 60.1% 67.6% 48.4% 47.7% 41.6% 59.6% 39.7%
24 1995 7/9 3.7 4.7 61.7% 64.6% 44.0% 53.7% 40.4% 56.3% 39.2% 1997 24/28 3.5 4.5 56.5% 66.3% 44.2% 53.2% 41.3% 56.8% 36.8%
25 1996 22/23 4.9 2.7 60.2% 70.3% 49.0% 61.2% 37.6% 61.8% 38.5% 1998 8/12 3.0 3.4 59.1% 63.2% 40.3% 66.6% 47.6% 53.8% 34.1%
26 1997 36/41 4.8 3.5 55.4% 71.7% 51.0% 53.0% 53.2% 62.4% 41.1% 1999 2/2 1.5 6.5 59.5% 59.5% 38.3% 55.0% 21.4% 51.9% 34.5%
27 1998 30/33 3.9 4.3 56.9% 67.1% 44.0% 49.0% 33.6% 57.0% 38.4% 2000 3/5 4.0 5.7 59.6% 66.5% 39.8% 49.2% 20.0% 56.0% 31.2%
28 1999 2/3 1.5 6.5 61.6% 70.0% 34.4% 45.2% 13.3% 56.4% 35.6% 2001 2/3 4.0 8.0 58.1% 67.0% 49.1% 53.5% 35.8% 59.5% 36.8%
29 2000 2/2 8.0 7.5 61.9% 79.4% 48.2% 59.2% 34.2% 68.1% 39.9% — —/— — — — — — — — — —
Career — 168/194 3.6 3.8 59.4% 67.6% 45.9% 52.2% 42.6% 58.8% 40.3% — 206/244 2.8 3.6 58.2% 66.2% 46.6% 54.6% 45.8% 57.8% 40.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Grant Stafford Marcos Ondruska
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
17 — — — — — — — — — — — — — — — — 1990 1537 111.9 — — — — +45 — — 41.7% -1.25 1–1 1–0 — +0.20
18 — — — — — — — — — — — — — — — — 1991 1589 127.8 -3.07 +0.45 0.825 46.5% -15 +24 — 40.0% -0.60 1–1 0–1 — -0.46
19 1990 1493 101.2 — — — — — — — 0.0% -3.50 — 0–1 — -0.11 1992 1641 118.5 -2.04 +3.41 1.062 51.0% -37 +25 — 50.0% +0.14 4–2 (67%) 2–3 (40%) 102.8 +1.64
20 1991 1553 120.2 -2.74 +0.10 0.877 47.4% +35 — — 37.9% -0.86 4–0 (100%) 1–3 (25%) 105.2 +0.35 1993 1568 136.6 -2.53 +2.02 0.972 49.6% +55 +92 +20 49.3% -0.07 7–11 (39%) 5–5 (50%) 96.4 +1.65
21 1992 1636 116.0 -2.73 +2.89 0.909 47.9% -35 — +9 52.4% -0.43 1–1 3–0 (100%) — -0.68 1994 1687 133.1 -1.29 +1.94 0.994 50.0% -8 -54 -101 51.1% +0.02 6–10 (38%) 6–5 (55%) 97.5 -0.64
22 1993 1718 129.9 -1.48 +4.18 1.076 51.6% -17 — -65 55.2% +0.18 4–2 (67%) 6–3 (67%) 105.8 +0.11 1995 1666 131.0 -2.18 +1.47 0.970 49.6% +20 -47 -65 46.9% -0.02 8–7 (53%) 4–9 (31%) 98.1 -0.51
23 1994 1558 130.9 -3.88 +1.31 0.904 47.9% +81 -50 +43 40.5% -0.46 3–10 (23%) 4–4 (50%) 94.4 -0.87 1996 1675 135.7 -1.48 +1.63 0.982 49.3% +38 -128 -51 45.8% -0.15 5–5 (50%) 7–8 (47%) 97.4 -1.02
24 1995 1530 116.1 -1.20 +0.97 0.895 47.6% +80 — — 32.0% -0.92 2–4 (33%) 1–4 (20%) 95.9 -0.12 1997 1656 124.4 -3.01 -0.51 0.853 47.2% +1 -41 -28 38.0% -0.69 7–2 (78%) 4–7 (36%) 106.2 -0.01
25 1996 1563 122.3 -0.43 -0.01 1.008 50.1% +9 — +95 48.3% +0.05 2–6 (25%) 4–4 (50%) 96.5 +1.72 1998 1541 113.3 -3.51 -1.85 0.737 44.6% +23 — — 23.3% -1.53 1–2 (33%) 1–4 (20%) 96.2 +0.28
26 1997 1658 134.1 +0.10 +3.52 1.093 51.4% -32 -111 +67 50.0% +0.05 7–8 (47%) 4–5 (44%) 102.5 -0.14 1999 1520 102.7 -1.06 +2.09 0.716 43.6% — — — 0.0% -2.80 — — — -0.12
27 1998 1565 127.0 -3.40 +0.46 0.893 47.5% +59 -78 +128 39.2% -0.82 3–6 (33%) 3–3 (50%) 96.7 -0.07 2000 1477 113.2 -2.58 +2.02 0.709 43.5% +31 — — 16.7% -2.50 0–2 2–1 (67%) — -0.49
28 1999 1535 103.1 +1.15 -0.33 0.817 44.9% — — — 0.0% -2.86 — — — -0.39 2001 1569 114.2 -1.90 +4.79 0.909 48.2% — — — 33.3% -1.83 1–0 1–1 — -0.37
29 2000 1592 112.5 +0.96 +1.20 1.250 53.0% — — — 62.5% +0.63 0–1 1–0 — -0.05 — — — — — — — — — — — — — — — —
Career — 1808 133.9 -1.78 +1.85 0.977 49.4% +21 -80 +52 44.8% -0.34 26–38 (41%) 27–27 (50%) 100.0 -0.13 — 1786 135.2 -2.21 +1.52 0.947 49.0% +19 +16 -37 44.4% -0.33 41–43 (49%) 33–44 (43%) 97.0 +0.06

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.