H2H data updated: 2026-07-19 02:51 UTC
John Marks vs Terry Ryan H2H: 1-0
John Marks holds a 1–0 lead over Terry Ryan in their ATP head-to-head. Across 1 main-draw meeting, John Marks leads 1–0 on clay. Most recently, John Marks won the 1976 North Conway second round 6-2 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
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Aug 10, 1976* | North Conway | ATP 250 | R64 | Clay | John Marks | 6-2 6-4 | Terry Ryan | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| John Marks | #223 | #60 | 0 | 1,631 | 30 | 81 | 27.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Terry Ryan | — | — | — | 1,538 | — | — | — | 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 | John Marks | Terry Ryan | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1970 | 1–1 | 50.0% | — | 1,502 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 1971 | 1–2 | 33.3% | — | 1,485 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1973 | 0–1 | 0.0% | — | 1,467 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1974 | 1–3 | 25.0% | — | 1,446 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1975 | 5–1 | 83.3% | #330 | 1,563 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1976 | 3–15 | 16.7% | #165 | 1,442 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1977 | 4–13 | 23.5% | #183 | 1,434 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1978 | 9–16 | 36.0% | #63 | 1,628 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1979 | 4–26 | 13.3% | #115 | 1,456 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1980 | 2–3 | 40.0% | #223 | 1,459 | 0 | 0 | — | — | — | — | — | — | — |