Bonnie Logan
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Emilie Burrer | 0 | 2 | 2 | Jul 31, 1969 | H2H |
| Mona Guerrant | 0 | 1 | 1 | Apr 20, 1973 | H2H |
| Marcie Louie | 0 | 1 | 1 | Mar 17, 1973 | H2H |
| Julie Anthony | 0 | 1 | 1 | Dec 17, 1972 | H2H |
| Susan Biscoe | 1 | 0 | 1 | Dec 16, 1972 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Bonnie Logan vs Marlene Calitz H2H: 1-0
Bonnie Logan holds a 1–0 lead over Marlene Calitz in their WTA head-to-head. Across 1 main-draw meeting, Bonnie Logan leads 1–0 on hard courts. Most recently, Bonnie Logan won the 1972 South African Open round of 128 6-1 6-1.
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 |
|---|---|---|---|---|---|---|---|---|
| Bonnie Logan | 6-1 6-1 | Marlene Calitz | Match data | Mar 28, 1972* | R128 | South African Open | WTA 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bonnie Logan | — | — | — | 1,528 | 4 | 10 | 28.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Marlene Calitz | — | — | — | 1,500 | 0 | 1 | 0.0% | 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.
| Bonnie Logan | Marlene Calitz | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1969 | 2–2 | 50.0% | — | 1,503 | 0 | 0 | 1972 | 0–1 | 0.0% | — | 1,484 | 0 | 0 |
| 1971 | 0–1 | 0.0% | — | 1,502 | 0 | 0 | — | — | — | — | — | — | — |
| 1972 | 2–5 | 28.6% | — | 1,501 | 0 | 0 | — | — | — | — | — | — | — |
| 1973 | 0–2 | 0.0% | — | 1,488 | 0 | 0 | — | — | — | — | — | — | — |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Bonnie Logan | Marlene Calitz | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1969 | 1503 | 97.6 | — | — | — | — | — | +24 | — | 44.4% | -0.44 | 1–0 | — | — | +0.39 | 1972 | 1484 | 93.3 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | +0.06 |
| 1971 | 1502 | 102.6 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | -0.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1972 | 1502 | 101.2 | — | — | — | — | +27 | — | — | 28.6% | -2.29 | — | 1–0 | — | -0.17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1973 | 1489 | 95.9 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1528 | 99.0 | — | — | — | — | +27 | +24 | — | 27.6% | -2.04 | 1–0 | 1–0 | — | -2.07 | Career | 1500 | 96.5 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | +6.00 |
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.
Marlene Calitz
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Bonnie Logan | 0 | 1 | 1 | Mar 28, 1972 | H2H |