O'Brien J.

Rating 1506 7–7 (50%) Recent form LLWWW

Record by level

Challenger 1–0 100%
Other 6–7 46%

Best wins

2025-05-29 Jones S. 1608 2-1 ATP Singles: UTR Pro Tennis Series
2025-07-28 Staley J. 1526 2-1 ATP Singles: UTR Pro Tennis Series
2025-05-29 Staley J. 1526 2-1 ATP Singles: UTR Pro Tennis Series
2025-05-28 Ishikawa H. 1462 3-2 ATP Singles: UTR Pro Tennis Series

Most frequent opponents

Cham E. H2H0–3 Errey C. H2H2–0 Staley J. H2H2–0 Ishikawa H. H2H1–1

Match history (14)

2025-08-10 W Navin P. 2-1 ATP Singles: Grodzisk Mazowiecki challenger
2025-08-03 W Errey C. 2-1 ATP Singles: UTR Pro Tennis Series
2025-08-02 W Errey C. 2-1 ATP Singles: UTR Pro Tennis Series
2025-08-01 L Cham E. 0-2 ATP Singles: UTR Pro Tennis Series
2025-07-31 L Cham E. 0-2 ATP Singles: UTR Pro Tennis Series
2025-07-29 L Vujacic L. 1-2 ATP Singles: UTR Pro Tennis Series
2025-07-29 L Boniel N. 1-2 ATP Singles: UTR Pro Tennis Series
2025-07-29 L Cham E. 1-2 ATP Singles: UTR Pro Tennis Series
2025-07-28 W Staley J. 2-1 ATP Singles: UTR Pro Tennis Series
2025-05-29 W Jones S. 2-1 ATP Singles: UTR Pro Tennis Series
2025-05-29 W Staley J. 2-1 ATP Singles: UTR Pro Tennis Series
2025-05-28 W Ishikawa H. 3-2 ATP Singles: UTR Pro Tennis Series
2025-05-28 L Howe P. 2-3 ATP Singles: UTR Pro Tennis Series
2025-05-27 L Ishikawa H. 2-3 ATP Singles: UTR Pro Tennis Series
About this page
Everything here is derived from match results we hold — wins, losses, opponents and scores. The rating moves after every match by how surprising the result was, so beating a stronger opponent is worth more than beating a weaker one. There is no biography, no ranking points and no editorial: if it is not visible in results, it is not on this page.