H2H data updated: 2026-09-04 00:00 UTC

Mark Keil vs Andrew Sznajder H2H: 1-0

Mark Keil holds a 1–0 lead over Andrew Sznajder in their ATP head-to-head. Across 1 main-draw meeting, Mark Keil leads 1–0 on carpet. Most recently, Mark Keil won the 1991 Brasilia round of 64 5-7 7-6(6) 7-6(4).

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Mark Keil
USA Age 59 Right-Handed 185 cm / 6'1"
H2H
1 – 0
1 main draw meetings
Andrew Sznajder
CAN Age 59 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mark Keil #191 5-7 7-6(6) 7-6(4) Andrew Sznajder #209 Match data Sep 11, 1991* R64 Brasilia ATP World Series → modern equivalent ATP 250 Carpet

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
Mark Keil #1,308 #167 195 1,545 4 8 33.3% 0 0 0 0 0 0
Andrew Sznajder #758 #46 424 1,726 44 64 40.7% 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 Mark Keil Andrew Sznajder
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 1986 4–4 50.0% #144 1,547 0 0
20 — — — — — — — 1987 2–3 40.0% #246 1,551 0 0
21 1988 0–1 0.0% #885 1,495 0 0 1988 1–1 50.0% #118 1,557 0 0
22 — — — — — — — 1989 14–9 60.9% #56 1,689 0 0
23 — — — — — — — 1990 17–17 50.0% #104 1,699 0 0
24 1991 3–3 50.0% #200 1,517 0 0 1991 4–14 22.2% #195 1,522 0 0
25 1992 0–1 0.0% #742 1,510 0 0 1992 1–3 25.0% #134 1,509 0 0
26 1993 1–2 33.3% #537 1,490 0 0 1993 1–6 14.3% #290 1,503 0 0
27 1994 0–1 0.0% #878 1,488 0 0 1994 0–2 0.0% #485 1,483 0 0
28 — — — — — — — 1995 0–5 0.0% #219 1,445 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 Mark Keil Andrew Sznajder
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 %
19 — — — — — — — — — — — — — — — — — 1986 2 2 4 50.0% 1 1 2 50.0% — — — — 1 1 2 50.0%
20 — — — — — — — — — — — — — — — — — 1987 2 3 5 40.0% — — — — — — — — — — — —
21 1988 0 1 1 0.0% — — — — — — — — — — — — 1988 1 1 2 50.0% — — — — — — — — — — — —
22 — — — — — — — — — — — — — — — — — 1989 12 7 19 63.2% 1 1 2 50.0% — — — — 1 1 2 50.0%
23 — — — — — — — — — — — — — — — — — 1990 10 9 19 52.6% 1 4 5 20.0% — — — — 6 4 10 60.0%
24 1991 — — — — — — — — 2 2 4 50.0% 1 1 2 50.0% 1991 4 9 13 30.8% 0 3 3 0.0% — — — — 0 2 2 0.0%
25 1992 0 1 1 0.0% — — — — — — — — — — — — 1992 0 2 2 0.0% 1 1 2 50.0% — — — — — — — —
26 1993 1 1 2 50.0% — — — — 0 1 1 0.0% — — — — 1993 1 4 5 20.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
27 1994 0 1 1 0.0% — — — — — — — — — — — — 1994 0 2 2 0.0% — — — — — — — — — — — —
28 — — — — — — — — — — — — — — — — — 1995 0 3 3 0.0% 0 2 2 0.0% — — — — — — — —
Career — 1 4 5 20.0% — — — — 2 3 5 40.0% 1 1 2 50.0% — 32 42 74 43.2% 4 13 17 23.5% 0 1 1 0.0% 8 8 16 50.0%

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 10/11 of Mark Keil's and 29/36 of Andrew Sznajder'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 Mark Keil Andrew Sznajder
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%
24 1991 5/6 5.6 5.8 60.2% 68.5% 48.3% 67.6% 35.1% 60.1% 39.2% 1991 15/18 3.4 3.6 58.1% 64.9% 43.5% 53.5% 28.8% 56.2% 35.8%
25 1992 1/1 2.0 5.0 62.2% 72.5% 41.9% 66.7% 20.0% 61.0% 32.5% 1992 2/4 5.5 5.0 56.6% 64.0% 47.1% 57.8% 29.2% 57.6% 31.4%
26 1993 3/3 7.0 7.7 64.2% 73.8% 34.0% 58.9% 31.5% 59.3% 34.9% 1993 6/7 3.2 2.8 56.3% 64.2% 53.4% 46.2% 29.9% 58.9% 33.1%
27 1994 1/1 0.0 5.0 46.9% 56.5% 34.6% 33.3% — 44.9% 22.0% 1994 2/2 4.5 5.0 51.9% 65.2% 44.9% 68.3% 37.5% 56.2% 26.8%
28 — —/— — — — — — — — — — 1995 4/5 6.0 4.5 59.4% 67.2% 43.8% 45.2% 29.0% 57.6% 31.9%
Career — 10/12 5.1 6.2 60.3% 69.3% 42.0% 61.5% 29.0% 58.4% 35.5% — 29/108 3.9 3.8 57.4% 65.0% 45.9% 52.2% 29.7% 57.1% 33.8%

Advanced Statistics Comparison by Age

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 Mark Keil Andrew Sznajder
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
19 — — — — — — — — — — — — — — — — 1986 1547 115.4 — — — — +23 — — 44.4% -0.22 2–0 1–0 — +0.38
20 — — — — — — — — — — — — — — — — 1987 1552 108.6 — — — — +16 — — 33.3% -2.67 1–0 4–0 (100%) — +0.22
21 1988 1495 105.0 — — — — — — — 0.0% -3.00 — — — -0.21 1988 1557 101.7 — — — — — — — 50.0% -1.00 — — — +0.28
22 — — — — — — — — — — — — — — — — 1989 1689 126.8 — — — — +1 — — 55.1% -0.04 7–4 (64%) 5–3 (63%) — +0.09
23 — — — — — — — — — — — — — — — — 1990 1700 132.3 — — — — +30 -137 — 47.7% -0.65 7–2 (78%) 7–3 (70%) — +0.33
24 1991 1517 101.3 -0.67 +1.80 0.983 49.6% — — +60 43.8% -0.75 2–1 (67%) 4–0 (100%) — -0.08 1991 1523 109.4 -3.57 -2.39 0.819 45.9% +73 -14 — 27.9% -1.53 1–4 (20%) 1–2 (33%) — +0.26
25 1992 1510 104.3 -1.82 +3.30 0.833 46.9% — — — 0.0% -1.50 — 0–1 — -0.12 1992 1510 108.9 -1.74 -0.05 0.741 44.3% — — — 38.5% -0.69 1–0 1–2 (33%) — +0.36
26 1993 1490 100.1 -2.99 -0.92 0.858 47.2% — — — 41.7% -0.92 — 2–1 (67%) — +0.61 1993 1504 129.4 -0.79 +0.46 0.807 46.1% +67 — — 25.0% -1.63 0–2 — — -0.76
27 1994 1488 104.9 +2.99 +2.01 0.398 34.4% — — — 0.0% -4.50 — — — -0.20 1994 1484 102.7 -1.89 -0.60 0.611 42.7% — — — 0.0% -2.00 — — — -0.01
28 — — — — — — — — — — — — — — — — 1995 1446 102.6 -1.56 -0.27 0.752 44.7% +64 — — 16.7% -1.84 0–2 1–2 (33%) — -0.13
Career — 1546 105.6 -1.12 +1.16 0.855 47.1% — — +60 35.3% -1.21 2–1 (67%) 6–2 (75%) 104.6 0.00 — 1726 128.7 -2.48 -1.22 0.787 45.5% +33 -91 — 41.9% -0.83 19–14 (58%) 20–12 (63%) 108.6 +0.94

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.