Mark Cox holds a solid clay court record of 94–67 across 161 matches (58.4%). A winning majority across 161 matches shows consistent ability to get results on clay. Claimed 2 titles on clay: Charlotte, Bournemouth.

At Grand Slam level (Roland Garros): Mark Cox is 6–5 (54.5%) across 11 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

4 finals reached on clay — won 2, lost 2 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 13 semifinals. 22 quarterfinals.

vs. Top 10 on clay: 0–3 (0.0%, 3 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 30–17 (63.8%); best-of-three: 64–50 (56.1%). Slightly better in five-set matches on clay — a positive sign for the Slams specifically.

Best season: 1969 — 14–5 (73.7%) from 19 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.