H2H data updated: 2026-07-19 14:15 UTC
Tom Okker vs Clark Graebner H2H: 2-0
Tom Okker holds a 2–0 lead over Clark Graebner in their ATP head-to-head. Across 2 main-draw meetings, Tom Okker leads 1–0 on grass and 1–0 on hard courts. Most recently, Tom Okker won the 1971 US Open quarterfinal 6-2 6-3 6-4.
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NED
Age 82
Right-Handed
177 cm / 5'10"
H2H
2
–
0
2 main draw meetings
USA
Age 82
Right-Handed
188 cm / 6'2"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 12, 1971* | US Open | Grand Slam | QF | Grass | Tom Okker | 6-2 6-3 6-4 | Clark Graebner | Match data |
| Apr 6, 1968* | Johannesburg 1 | ATP 250 | SF | Hard | Tom Okker | 4-6 6-4 6-4 5-7 6-3 | Clark Graebner | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tom Okker | #438 | #3 | 0 | 2,198 | 672 | 279 | 70.7% | 0 | 2 | 0 | 0 | 35 | 37 |
| Clark Graebner | #199 | #45 | 0 | 2,015 | 342 | 162 | 67.9% | 0 | 0 | 0 | 0 | 12 | 12 |
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 | Tom Okker | Clark Graebner | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 24 | 1968 | 89–23 | 79.5% | — | 1,796 | 0 | 7 | 1968 | 74–22 | 77.1% | — | 1,820 | 0 | 2 |
| 25 | 1969 | 86–25 | 77.5% | — | 2,009 | 0 | 15 | 1969 | 49–14 | 77.8% | — | 1,842 | 0 | 6 |
| 26 | 1970 | 59–27 | 68.6% | — | 1,948 | 0 | 20 | 1970 | 58–28 | 67.4% | — | 1,839 | 0 | 8 |
| 27 | 1971 | 74–31 | 70.5% | — | 2,007 | 0 | 22 | 1971 | 75–29 | 72.1% | — | 1,878 | 0 | 11 |
| 28 | 1972 | 69–31 | 69.0% | — | 2,041 | 0 | 23 | 1972 | 33–22 | 60.0% | — | 1,812 | 0 | 11 |
| 29 | 1973 | 91–23 | 79.8% | #4 | 2,166 | 0 | 30 | 1973 | 34–19 | 64.2% | #48 | 1,768 | 0 | 12 |
| 30 | 1974 | 65–19 | 77.4% | #6 | 2,061 | 0 | 33 | 1974 | 11–14 | 44.0% | #99 | 1,685 | 0 | 12 |
| 31 | 1975 | 39–13 | 75.0% | #11 | 2,068 | 0 | 35 | 1975 | 8–11 | 42.1% | #120 | 1,580 | 0 | 12 |
| 32 | 1976 | 33–18 | 64.7% | #23 | 1,956 | 0 | 35 | 1976 | 0–3 | 0.0% | #199 | 1,537 | 0 | 12 |
| 33 | 1977 | 15–13 | 53.6% | #31 | 1,931 | 0 | 36 | — | — | — | — | — | — | — |
| 34 | 1978 | 20–20 | 50.0% | #50 | 1,879 | 0 | 36 | — | — | — | — | — | — | — |
| 35 | 1979 | 20–18 | 52.6% | #56 | 1,772 | 0 | 37 | — | — | — | — | — | — | — |
| 36 | 1980 | 11–13 | 45.8% | #107 | 1,715 | 0 | 37 | — | — | — | — | — | — | — |
| 37 | 1981 | 1–5 | 16.7% | #107 | 1,651 | 0 | 37 | — | — | — | — | — | — | — |