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

Willem Prinsloo vs John Whitlinger H2H: 0-1

John Whitlinger holds a 1–0 lead over Willem Prinsloo in their ATP head-to-head. Across 1 main-draw meeting, John Whitlinger leads 1–0 on clay. Most recently, John Whitlinger won the 1977 Louisville round of 64 6-2 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Willem Prinsloo
RSA Left-Handed
H2H
0 – 1
1 main draw meetings
John Whitlinger
USA Age 72 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Whitlinger 6-2 6-4 Willem Prinsloo #87 Match data Jul 27, 1977* R64 Louisville ATP 250 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.

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
Willem Prinsloo #332 #81 0 1,549 13 33 28.3% 0 0 0 0 0 0
John Whitlinger #264 #75 0 1,630 45 77 36.9% 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 Willem Prinsloo John Whitlinger
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1971 1–1 50.0% — 1,516 0 0 — — — — — — —
18 1972 0–1 0.0% — 1,488 0 0 — — — — — — —
19 — — — — — — — 1973 1–1 50.0% #143 1,506 0 0
20 — — — — — — — 1974 11–9 55.0% #85 1,579 0 0
21 1975 1–1 50.0% #282 1,491 0 0 1975 6–15 28.6% #98 1,567 0 0
22 1976 3–1 75.0% #154 1,547 0 0 1976 17–29 37.0% #130 1,541 0 0
23 1977 4–15 21.1% #97 1,502 0 0 1977 7–17 29.2% #127 1,512 0 0
24 1978 3–5 37.5% #122 1,501 0 0 1978 0–1 0.0% #374 1,497 0 0
25 1979 1–9 10.0% #265 1,428 0 0 — — — — — — —
26 — — — — — — — 1980 3–5 37.5% #264 1,495 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 Willem Prinsloo John Whitlinger
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 1971 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 1972 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 — — — — — — — — — — — — — — — — — 1973 — — — — 1 1 2 50.0% — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1974 2 2 4 50.0% 2 3 5 40.0% 5 2 7 71.4% 2 2 4 50.0%
21 1975 — — — — 1 1 2 50.0% — — — — — — — — 1975 2 3 5 40.0% 4 9 13 30.8% — — — — 0 3 3 0.0%
22 1976 3 1 4 75.0% — — — — — — — — — — — — 1976 8 8 16 50.0% 4 11 15 26.7% 0 2 2 0.0% 5 8 13 38.5%
23 1977 1 1 2 50.0% 3 12 15 20.0% 0 2 2 0.0% — — — — 1977 2 7 9 22.2% 3 6 9 33.3% 0 1 1 0.0% 2 3 5 40.0%
24 1978 2 3 5 40.0% — — — — — — — — 1 2 3 33.3% 1978 0 1 1 0.0% — — — — — — — — — — — —
25 1979 1 5 6 16.7% 0 3 3 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
26 — — — — — — — — — — — — — — — — — 1980 1 3 4 25.0% 0 1 1 0.0% — — — — 2 1 3 66.7%
Career — 8 12 20 40.0% 4 16 20 20.0% 0 2 2 0.0% 1 3 4 25.0% — 15 24 39 38.5% 14 31 45 31.1% 5 5 10 50.0% 11 17 28 39.3%

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 Willem Prinsloo John Whitlinger
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 1971 1517 101.3 — — — — — — — 42.9% -0.71 — 0–1 — -0.26 — — — — — — — — — — — — — — — —
18 1972 1488 98.1 — — — — — — — 25.0% -0.75 — — — +0.04 — — — — — — — — — — — — — — — —
19 — — — — — — — — — — — — — — — — 1973 1506 97.9 — — — — — — — 50.0% -1.00 — — — +0.16
20 — — — — — — — — — — — — — — — — 1974 1580 113.1 — — — — +13 -57 +11 52.9% +0.08 4–3 (57%) 4–3 (57%) — +2.32
21 1975 1491 103.1 — — — — — — — 60.0% +0.60 0–1 1–0 — +0.33 1975 1568 124.8 — — — — -12 -22 — 30.4% -1.39 2–2 (50%) 1–6 (14%) — 0.00
22 1976 1547 115.5 — — — — +58 — — 66.7% +1.00 1–0 — — +0.34 1976 1541 118.0 — — — — +58 -38 — 38.0% -0.94 8–8 (50%) 8–5 (62%) — +5.18
23 1977 1503 110.5 — — — — — +2 — 23.3% -2.23 1–2 (33%) 2–1 (67%) — +0.24 1977 1513 107.6 — — — — +38 -25 — 34.5% -1.43 3–6 (33%) 4–2 (67%) — +1.62
24 1978 1501 102.5 — — — — +87 — — 36.8% -1.26 2–1 (67%) 2–0 — +1.33 1978 1498 92.7 — — — — — — — 0.0% -5.00 — — — +0.19
25 1979 1428 101.7 — — — — +79 +29 — 26.9% -1.69 0–5 (0%) — — +0.82 — — — — — — — — — — — — — — — —
26 — — — — — — — — — — — — — — — — 1980 1495 101.6 — — — — +31 — — 38.9% -0.95 1–1 1–0 — +1.16
Career — 1550 109.6 — — — — +78 +7 — 32.7% -1.41 4–9 (31%) 5–2 (71%) 97.4 +6.17 — 1630 116.6 — — — — +37 -33 +11 38.7% -0.96 18–20 (47%) 18–16 (53%) 104.2 +8.71

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.