Career
In July 2023, playing alongside compatriot Isaac Becroft, he won the men's doubles title at the Caloundra International (M15) event on the Sunshine Coast in Queensland.[5]
In September 2024, he lost in the final of the singles at the Darwin Tennis International in Darwin, Australia going three sets against Omar Jasika, a player ranked over 1100 places higher than him in the rankings.[6] In October 2024, he won the doubles $25,000 ITF tournament in Cairns, Australia alongside Matt Hulme.[7][8]
In January 2025, he was awarded a wildcard into the main draw of the men's doubles at the 2025 ASB Classic in Auckland, alongside Marcus Daniell where they were drawn against Roberto Carballes Baena and Luciano Darderi in the first round.[9]
In June, playing alongside Finn Reynolds, he won his first doubles Challenger title in Tyler, Texas, defeating Alex Martinez and Adrià Soriano Barrera in the final in straight sets.[10] Alongside Reynolds, Watt made his Grand Slam debut in the men's doubles at the 2026 French Open.[11]
ATP Tour finals
Doubles: 1 (1 runner-up)
| Legend |
| Grand Slam (0–0) |
| ATP 1000 (0–0) |
| ATP 500 (0–0) |
| ATP 250 (0–1) |
|
| Finals by surface |
| Hard (0–1) |
| Clay (0–0) |
| Grass (0–0) |
|
ATP Challenger and ITF Futures finals
Doubles: 17 (10 titles, 7 runners-up)
| Legend |
| ATP Challenger Tour (7–7) |
| ITF Futures (3–0) |
|
| Finals by surface |
| Hard (9–7) |
| Clay (0–0) |
| Grass (1–0) |
| Carpet (0–0) |
|
| Result |
W–L |
Date |
Tournament |
Tier |
Surface |
Partner |
Opponents |
Score |
| Win |
1–0 |
Sep 2024 |
M25 Cairns, Australia |
World Tennis Tour |
Hard |
Matt Hulme |
Joshua Charlton Blake Ellis |
6–3, 6–7(5–7), [10–7] |
| Loss |
1–1 |
Feb 2025 |
Brisbane, Australia |
Challenger |
Hard |
Matt Hulme |
Joshua Charlton
Patrick Harper |
6–4, 6–7(5–7), [10–12] |
| Win |
2–1 |
Feb 2025 |
M25 Burnie, Australia |
World Tennis Tour |
Hard |
Matt Hulme |
Hsu Yu-hsiou Huang Tsung-hao |
6–2, 6–4 |
| Win |
3–1 |
Mar 2025 |
M25 Mildura, Australia |
World Tennis Tour |
Hard |
Matt Hulme |
Joshua Charlton Ajeet Rai |
6–7(7–9), 7–6(7–1), [13–11] |
| Loss |
3–2 |
Mar 2025 |
Cuernavaca, Mexico |
Challenger |
Hard |
Finn Reynolds |
Jody Maginley
Alfredo Perez |
5–7, 7–6(7–5), [8–10] |
| Loss |
3–3 |
Apr 2025 |
Ostrava, Czech Republic |
Challenger |
Hard |
Finn Reynolds |
Jan Jermář
Stefan Latinović |
5–7, 3–6 |
| Win |
4–3 |
Jun 2025 |
Tyler, United States |
Challenger |
Hard |
Finn Reynolds |
Àlex Martínez
Adrià Soriano Barrera |
6–3, 6–1 |
| Win |
5–3 |
Jun 2025 |
Cary, United States |
Challenger |
Hard |
Finn Reynolds |
Patrick Harper
Trey Hilderbrand |
6–3, 6–7(2–7), [10–5] |
| Win |
6–3 |
Jun 2025 |
Granby, Canada |
Challenger |
Hard |
Finn Reynolds |
Kody Pearson
Yuta Shimizu |
6–3, 6–4 |
| Loss |
6–4 |
Sep 2025 |
Las Vegas, United States |
Challenger |
Hard |
Finn Reynolds |
Benjamin Kittay
Joshua Sheehy |
5–7, 6–7(2–7) |
| Win |
7–4 |
Sep 2025 |
Tiburon, United States |
Challenger |
Hard |
Finn Reynolds |
Benjamin Kittay
Joshua Sheehy |
6–2, 6–3 |
| Win |
8–4 |
Oct 2025 |
Jinan, China |
Challenger |
Hard |
Finn Reynolds |
Rithvik Choudary Bollipalli
Arjun Kadhe |
7–5, 7–6(7–1) |
| Loss |
8–5 |
Oct 2025 |
Shenzhen, China |
Challenger |
Hard |
Finn Reynolds |
Nathaniel Lammons
Jean-Julien Rojer |
7–6(7–5), 5–7, [4–10] |
| Loss |
8–6 |
Nov 2025 |
Matsuyama, Japan |
Challenger |
Hard |
Finn Reynolds |
Marc-Andrea Hüsler
Garrett Johns |
3–6, 4–6 |
| Loss |
8–7 |
Jun 2026 |
Cary, United States |
Challenger |
Hard |
Finn Reynolds |
Nam Ji-sung
Patrik Niklas-Salminen |
7–5, 5–7, [8–10] |
| Win |
9–7 |
Jul 2026 |
Newport, United States |
Challenger |
Grass |
Finn Reynolds |
Fernando Romboli
John-Patrick Smith |
6–1, 6–7(2–7), [10–6] |
| Win |
10–7 |
Jul 2026 |
Granby, Canada |
Challenger |
Hard |
Finn Reynolds |
Guillaume Dalmasso
Matt Kuhar |
6–3, 6–4 |