Jeff Klaparda
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Mike Brown | 0 | 1 | 1 | Aug 11, 1989 | — |
| John Ross | 1 | 0 | 1 | Aug 10, 1989 | — |
| Javier Sanchez | 0 | 1 | 1 | Aug 27, 1987 | H2H |
| Wolfgang Popp | 0 | 1 | 1 | Jun 17, 1987 | H2H |
| Sergio Casal | 0 | 1 | 1 | Nov 5, 1986 | H2H |
H2H data updated: 2026-09-03 00:00 UTC
Jeff Klaparda vs Michael Mortensen H2H: 0-1
Michael Mortensen holds a 1–0 lead over Jeff Klaparda in their ATP head-to-head. Across 1 main-draw meeting, Michael Mortensen leads 1–0 on hard courts. Most recently, Michael Mortensen won the 1984 Columbus round of 32 7-6 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
0
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1
1 main draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Michael Mortensen | 7-6 6-3 | Jeff Klaparda | Match data | Aug 16, 1984* | R32 | Columbus | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jeff Klaparda | #975 | #153 | 20 | 1,564 | 5 | 9 | 35.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Michael Mortensen | #992 | #301 | 0 | 1,536 | 2 | 2 | 50.0% | 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.
| Age | Jeff Klaparda | Michael Mortensen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | 1984 | 4–4 | 50.0% | #223 | 1,538 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1985 | 0–1 | 0.0% | #463 | 1,521 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1986 | 0–1 | 0.0% | #253 | 1,514 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1987 | 0–2 | 0.0% | #292 | 1,483 | 0 | 0 | 1984 | 2–2 | 50.0% | #311 | 1,531 | 0 | 0 |
| 25 | 1989 | 1–1 | 50.0% | #510 | 1,485 | 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 | Jeff Klaparda | Michael Mortensen | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 20 | 1984 | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1985 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1986 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1987 | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1984 | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 25 | 1989 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 5 | 8 | 13 | 38.5% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
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 | Jeff Klaparda | Michael Mortensen | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | 1984 | 1538 | 110.8 | — | — | — | — | +29 | — | — | 47.6% | +0.05 | 1–0 | 1–3 (25%) | — | +0.77 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1985 | 1522 | 102.5 | — | — | — | — | — | — | — | 33.3% | +0.33 | 0–1 | 0–1 | — | +0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1986 | 1514 | 102.9 | — | — | — | — | — | — | — | 0.0% | -1.50 | — | 0–1 | — | -0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1987 | 1483 | 91.4 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.34 | 1984 | 1531 | 120.5 | — | — | — | — | — | — | — | 60.0% | +0.70 | 0–2 | 1–1 | — | -0.17 |
| 25 | 1989 | 1486 | 99.2 | — | — | — | — | — | — | — | 50.0% | -0.50 | — | — | — | +0.36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1565 | 104.2 | — | — | — | — | +29 | — | — | 38.2% | -0.56 | 1–1 | 1–5 (17%) | — | +11.00 | — | 1536 | 112.1 | — | — | — | — | — | — | — | 60.0% | +0.70 | 0–2 | 1–1 | — | -4.25 |
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 Mortensen
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Brian Teacher | 0 | 1 | 1 | Aug 17, 1984 | H2H |
| Jeff Klaparda | 1 | 0 | 1 | Aug 16, 1984 | H2H |
| Andres Gomez | 0 | 1 | 1 | May 10, 1984 | H2H |
| Roland Stadler | 1 | 0 | 1 | May 9, 1984 | H2H |