- Born
- 1996-09-03 in Dublin, Ireland, Ireland
- Hand
- Right
- Backhand
- 2 Hands
- Height
- 193 cm
- Weight
- 82 kg
- Coach
- nan
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Osgar O'Hoisin
Osgar O'Hoisin has found the Tour difficult, recording 3–4 across 7 matches (42.9%). The numbers point to a player still building their Tour presence — a key area of opportunity going forward.
| Date | Tournament | Srf | Rd | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 2025-01-31 | Davis Cup WG2 PO: IRL vs KSA | Hard | RR | 1288 | 1698 | 6-4 6-4 | ||
| 2024-02-03 | Davis Cup WG1 PO: IRL vs AUT | Hard | RR | 40 | 1015 | 6-4 6-4 | ||
| 2023-09-16 | Davis Cup WG2 R1: ESA vs IRL | Clay | RR | - | 859 | 7-6(5) 6-1 | ||
| 2023-09-16 | Davis Cup WG2 R1: ESA vs IRL | Clay | RR | 859 | - | 6-3 6-2 | ||
| 2023-02-03 | Davis Cup WG1 PO: PER vs IRL | - | RR | - | 771 | 6-2 6-3 | ||
| 2022-09-16 | Davis Cup WG2 R1: BAR vs IRL | Hard | RR | 868 | 811 | 7-6(7) 6-3 | ||
| 2022-09-16 | Davis Cup WG2 R1: BAR vs IRL | Hard | RR | 811 | - | 6-0 6-3 |