Willem Prinsloo
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Bob Lutz | 0 | 2 | 2 | Aug 9, 1979 | H2H |
| Onny Parun | 1 | 1 | 2 | Sep 4, 1977 | H2H |
| Jeff Borowiak | 1 | 1 | 2 | Sep 2, 1977 | H2H |
| John Alexander | 0 | 2 | 2 | Aug 19, 1977 | H2H |
| Harold Solomon | 0 | 2 | 2 | Aug 2, 1977 | H2H |
H2H data updated: 2026-09-02 00:00 UTC
Willem Prinsloo vs Jeff Twist H2H: 1-0
Willem Prinsloo holds a 1–0 lead over Jeff Twist in their ATP head-to-head. Across 1 main-draw meeting, Willem Prinsloo leads 1–0 on hard courts. Most recently, Willem Prinsloo won the 1971 South African Open round of 128 6-7 6-2 6-4 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.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Willem Prinsloo | 6-7 6-2 6-4 6-4 | Jeff Twist | Match data | Apr 6, 1971* | R128 | South African Open | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Willem Prinsloo | #332 | #81 | 0 | 1,549 | 13 | 33 | 28.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Jeff Twist | #752 | #496 | 0 | 1,528 | 3 | 6 | 33.3% | 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.
| Willem Prinsloo | Jeff Twist | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1971 | 1–1 | 50.0% | — | 1,516 | 0 | 0 | 1969 | 1–2 | 33.3% | — | 1,495 | 0 | 0 |
| 1972 | 0–1 | 0.0% | — | 1,488 | 0 | 0 | 1971 | 2–2 | 50.0% | — | 1,486 | 0 | 0 |
| 1975 | 1–1 | 50.0% | #282 | 1,491 | 0 | 0 | 1978 | 0–1 | 0.0% | #496 | 1,471 | 0 | 0 |
| 1976 | 3–1 | 75.0% | #154 | 1,547 | 0 | 0 | 1981 | 0–1 | 0.0% | — | 1,455 | 0 | 0 |
| 1977 | 4–15 | 21.1% | #97 | 1,502 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 3–5 | 37.5% | #122 | 1,501 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 1–9 | 10.0% | #265 | 1,428 | 0 | 0 | — | — | — | — | — | — | — |
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.
| Willem Prinsloo | Jeff Twist | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1971 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 1972 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1975 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1978 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1976 | 3 | 1 | 4 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1977 | 1 | 1 | 2 | 50.0% | 3 | 12 | 15 | 20.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1 | 5 | 6 | 16.7% | 0 | 3 | 3 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 8 | 12 | 20 | 40.0% | 4 | 16 | 20 | 20.0% | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | Career | 2 | 2 | 4 | 50.0% | — | — | — | — | 1 | 4 | 5 | 20.0% | — | — | — | — |
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.
| Willem Prinsloo | Jeff Twist | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1971 | 1517 | 101.3 | — | — | — | — | — | — | — | 42.9% | -0.71 | — | 0–1 | — | -0.26 | 1969 | 1496 | 102.7 | — | — | — | — | — | — | +25 | 33.3% | -1.00 | — | — | — | -0.13 |
| 1972 | 1488 | 98.1 | — | — | — | — | — | — | — | 25.0% | -0.75 | — | — | — | +0.04 | 1971 | 1487 | 96.5 | — | — | — | — | +63 | — | — | 45.5% | -0.64 | 1–0 | 1–0 | — | +0.67 |
| 1975 | 1491 | 103.1 | — | — | — | — | — | — | — | 60.0% | +0.60 | 0–1 | 1–0 | — | +0.33 | 1978 | 1471 | 96.5 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.23 |
| 1976 | 1547 | 115.5 | — | — | — | — | +58 | — | — | 66.7% | +1.00 | 1–0 | — | — | +0.34 | 1981 | 1456 | 95.3 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.22 |
| 1977 | 1503 | 110.5 | — | — | — | — | — | +2 | — | 23.3% | -2.23 | 1–2 (33%) | 2–1 (67%) | — | +0.24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1501 | 102.5 | — | — | — | — | +87 | — | — | 36.8% | -1.26 | 2–1 (67%) | 2–0 | — | +1.33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1428 | 101.7 | — | — | — | — | +79 | +29 | — | 26.9% | -1.69 | 0–5 (0%) | — | — | +0.82 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1550 | 109.6 | — | — | — | — | +78 | +7 | — | 32.7% | -1.41 | 4–9 (31%) | 5–2 (71%) | 97.4 | +6.17 | Career | 1528 | 96.4 | — | — | — | — | +63 | — | +25 | 33.3% | -1.34 | 1–0 | 1–0 | — | +11.00 |
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.
Jeff Twist
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Craig A Miller | 0 | 1 | 1 | Oct 8, 1981 | H2H |
| David Mustard | 0 | 1 | 1 | Oct 12, 1978 | H2H |
| Willem Prinsloo | 0 | 1 | 1 | Apr 6, 1971 | H2H |
| Jackie Saul | 0 | 1 | 1 | Apr 2, 1971 | — |
| Colin Diederichs | 1 | 0 | 1 | Apr 1, 1971 | — |