Clay Court Statistics Overview
John Marks has found clay courts difficult, recording 6–27 across 33 matches (18.2%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.
At Grand Slam level (Roland Garros): John Marks has struggled at Grand Slam level on clay: 1–3 (25.0%) in 4 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.
By format on clay — best-of-five: 1–2 (33.3%); best-of-three: 5–25 (16.7%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.
Best season: 1976 — 2–6 (25.0%) from 8 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.
John Marks Clay Court Record by Year
| Year | W | L | Win% | Titles | Finals | SF | QF |
|---|---|---|---|---|---|---|---|
| 1979 | 1 | 9 | 10.0% | 0 | 0 | 0 | 0 |
| 1978 | 2 | 7 | 22.2% | 0 | 0 | 0 | 0 |
| 1977 | 1 | 5 | 16.7% | 0 | 0 | 0 | 0 |
| 1976 | 2 | 6 | 25.0% | 0 | 0 | 0 | 0 |
Recent Clay Court Matches
| Date | Result | Opponent | Tournament | Round | Score |
|---|---|---|---|---|---|
| 1979-10-22 | Loss | (197) Cliff Drysdale | Tokyo-1 | R64 | 6-3 7-6 |
| 1979-08-20 | Loss | (25) Balazs Taroczy | Boston | R64 | 6-4 7-5 |
| 1979-08-06 | Loss | (194) Warren Maher | Indianapolis | R64 | 6-2 6-2 |
| 1979-07-30 | Loss | (17) Manuel Orantes | North Conway | R64 | 6-2 3-6 6-1 |
| 1979-07-16 | Loss | (224) Per Hjertquist | Bastad | R32 | 7-6 3-6 6-4 |
| 1979-07-09 | Win | (80) Ferdi Taygan | Gstaad | R32 | 6-3 3-6 10-8 |
| 1979-07-09 | Loss | (56) Peter McNamara | Gstaad | R16 | 6-0 6-2 |
| 1979-05-28 | Loss | (124) Pavel Slozil | Roland Garros | R128 | 6-2 6-1 7-6 |
| 1979-05-21 | Loss | (124) Gianni Ocleppo | Rome | R64 | 6-4 6-0 |
| 1979-05-14 | Loss | (49) Tomas Smid | Hamburg | R64 | 6-0 6-1 |
John Marks
Matches — Clay