George Kalovelonis
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Marcos Ondruska | 0 | 1 | 1 | Oct 6, 1994 | H2H |
| Andrei Cherkasov | 0 | 1 | 1 | Oct 7, 1993 | H2H |
| Bart Wuyts | 0 | 1 | 1 | Oct 3, 1991 | H2H |
| Jimmy Brown | 0 | 1 | 1 | Oct 4, 1990 | — |
| Ronald Agenor | 0 | 1 | 1 | Apr 13, 1989 | H2H |
H2H data updated: 2026-09-01 00:00 UTC
George Kalovelonis vs Michael Westphal H2H: 1-0
George Kalovelonis holds a 1–0 lead over Michael Westphal in their ATP head-to-head. Across 1 main-draw meeting, George Kalovelonis leads 1–0 on clay. Most recently, George Kalovelonis won the 1986 Athens round of 32 6-4 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
1
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0
1 main draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| George Kalovelonis | 6-4 6-3 | Michael Westphal | Match data | Jun 19, 1986* | R32 | Athens | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| George Kalovelonis | #1,301 | #208 | 1 | 1,541 | 3 | 11 | 21.4% | 0 | 0 | 0 | 0 | 0 | 0 |
| Michael Westphal | #1,050 | #49 | 81 | 1,755 | 73 | 97 | 42.9% | 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 | George Kalovelonis | Michael Westphal | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | — | — | — | — | — | — | — | 1982 | 4–6 | 40.0% | — | 1,556 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1983 | 7–9 | 43.8% | #96 | 1,569 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 1984 | 19–14 | 57.6% | #73 | 1,712 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1985 | 15–16 | 48.4% | #51 | 1,702 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1986 | 12–21 | 36.4% | #101 | 1,642 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 1987 | 5–15 | 25.0% | #279 | 1,566 | 0 | 0 |
| 23 | 1983 | 1–1 | 50.0% | #576 | 1,522 | 0 | 0 | 1988 | 6–9 | 40.0% | #116 | 1,554 | 0 | 0 |
| 24 | 1984 | 0–1 | 0.0% | #283 | 1,519 | 0 | 0 | 1989 | 5–7 | 41.7% | #233 | 1,566 | 0 | 0 |
| 26 | 1986 | 1–1 | 50.0% | #285 | 1,528 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1987 | 0–1 | 0.0% | #542 | 1,519 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1988 | 1–2 | 33.3% | #473 | 1,504 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1989 | 0–1 | 0.0% | #1103 | 1,496 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1990 | 0–1 | 0.0% | #1007 | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1991 | 0–1 | 0.0% | #1131 | 1,464 | 0 | 0 | — | — | — | — | — | — | — |
| 33 | 1993 | 0–1 | 0.0% | #1178 | 1,459 | 0 | 0 | — | — | — | — | — | — | — |
| 34 | 1994 | 0–1 | 0.0% | #1219 | 1,451 | 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 | George Kalovelonis | Michael Westphal | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 4 | 3 | 7 | 57.1% | 0 | 2 | 2 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1983 | 2 | 5 | 7 | 28.6% | 5 | 4 | 9 | 55.6% | — | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1984 | 10 | 7 | 17 | 58.8% | 8 | 5 | 13 | 61.5% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1985 | 3 | 5 | 8 | 37.5% | 12 | 10 | 22 | 54.5% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1986 | 7 | 7 | 14 | 50.0% | 2 | 11 | 13 | 15.4% | 1 | 1 | 2 | 50.0% | 2 | 2 | 4 | 50.0% |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1987 | 4 | 9 | 13 | 30.8% | 1 | 5 | 6 | 16.7% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 23 | 1983 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1988 | 0 | 2 | 2 | 0.0% | 5 | 6 | 11 | 45.5% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 24 | 1984 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1989 | 1 | 3 | 4 | 25.0% | 3 | 2 | 5 | 60.0% | — | — | — | — | 1 | 2 | 3 | 33.3% |
| 26 | 1986 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1987 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1988 | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1989 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1990 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1991 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1993 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | 1994 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 0 | 1 | 1 | 0.0% | 3 | 10 | 13 | 23.1% | — | — | — | — | — | — | — | — | — | 31 | 41 | 72 | 43.1% | 36 | 45 | 81 | 44.4% | 1 | 3 | 4 | 25.0% | 5 | 8 | 13 | 38.5% |
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 | George Kalovelonis | Michael Westphal | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 1557 | 126.4 | — | — | — | — | +47 | — | — | 45.8% | -0.12 | 1–3 (25%) | 1–0 | — | -0.27 |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1983 | 1570 | 120.2 | — | — | — | — | -2 | -3 | — | 48.8% | -0.12 | 3–6 (33%) | 3–4 (43%) | — | +0.83 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1984 | 1712 | 143.7 | — | — | — | — | -22 | -44 | — | 56.6% | +0.41 | 4–5 (44%) | 9–5 (64%) | — | -0.25 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1985 | 1703 | 130.1 | — | — | — | — | -43 | -9 | — | 46.8% | -0.66 | 8–6 (57%) | 9–4 (69%) | — | -1.63 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1986 | 1642 | 120.8 | — | — | — | — | +20 | -45 | — | 37.8% | -0.96 | 6–5 (55%) | 5–6 (45%) | — | -1.25 |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1987 | 1566 | 126.7 | — | — | — | — | +46 | +3 | — | 32.7% | -1.06 | 1–4 (20%) | 1–3 (25%) | — | -1.24 |
| 23 | 1983 | 1523 | 113.3 | — | — | — | — | — | — | — | 60.0% | +0.80 | 0–1 | — | — | -0.22 | 1988 | 1554 | 114.4 | — | — | — | — | +23 | +43 | — | 38.2% | -0.82 | 3–1 (75%) | 1–4 (20%) | — | +0.39 |
| 24 | 1984 | 1520 | 106.2 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | -0.22 | 1989 | 1566 | 117.9 | — | — | — | — | -15 | +56 | — | 40.6% | -0.25 | 4–2 (67%) | 2–5 (29%) | — | +0.38 |
| 26 | 1986 | 1529 | 107.7 | — | — | — | — | — | — | — | 60.0% | +1.60 | 0–1 | 0–2 | — | +0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1987 | 1519 | 99.9 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | -0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1988 | 1504 | 101.1 | — | — | — | — | — | — | — | 44.4% | -0.78 | — | 2–0 | — | +0.50 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1989 | 1497 | 104.6 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1990 | 1482 | 95.6 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1991 | 1464 | 98.7 | +1.65 | -6.96 | 0.875 | 48.1% | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1993 | 1459 | 103.2 | -1.13 | -3.34 | 0.467 | 37.0% | — | — | — | 0.0% | -4.00 | — | — | — | -0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | 1994 | 1451 | 94.8 | +0.26 | -2.86 | 0.547 | 36.3% | — | — | — | 0.0% | -5.00 | — | — | — | -0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1542 | 108.8 | +0.26 | -4.39 | 0.616 | 40.5% | — | — | — | 32.4% | -1.30 | 0–3 (0%) | 2–2 (50%) | 97.1 | +2.07 | — | 1755 | 134.6 | — | — | — | — | +6 | -8 | — | 44.3% | -0.46 | 30–32 (48%) | 31–31 (50%) | 100.8 | -1.79 |
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.
Michael Westphal
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Jan Gunnarsson | 0 | 4 | 4 | Nov 4, 1987 | H2H |
| Jimmy Arias | 2 | 2 | 4 | Aug 13, 1987 | H2H |
| Johan Kriek | 0 | 4 | 4 | Feb 7, 1986 | H2H |
| Tomas Smid | 1 | 3 | 4 | Feb 6, 1986 | H2H |
| Horst Skoff | 1 | 2 | 3 | May 13, 1989 | H2H |