Marko Ostoja has found the Tour difficult, recording 88–141 across 229 matches (38.4%). The numbers point to a player still building their Tour presence — a key area of opportunity going forward. Claimed 1 title: Brussels-2.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Marko Ostoja is 8–11 (42.1%) across 19 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
One final reached, converted into a title — a perfect finals record so far. 4 semifinals. 7 quarterfinals.
vs. Top 10: 2–19 (9.5%, 21 matches). Top 10 opponents have represented a clear ceiling; addressing that deficit is the single biggest lever for improving the overall record.
By format — best-of-five: 15–17 (46.9%); best-of-three: 73–124 (37.1%). Significantly better in five-set matches — a strong physical profile that tends to tell as matches and tournaments progress.
Best season: 1982 — 16–22 (42.1%) from 38 matches. The best single-season display to date — a useful reference point as the career continues to develop.