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Arthur Cazaux (French pronunciation: [aʁtyʁ kazo]; born 23 August 2002) is a French professional tennis player. He has a career-high ATP singles ranking of world No. 58, achieved on 13 October 2025 and a doubles ranking of No. 430, achieved on 1 November 2021. Cazaux has won four Challenger singles titles.
| W | F | SF | QF | | RR | Q# | DNQ | A | NH |
| Tournament | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win % |
| Grand Slam tournaments | |||||||||
| Australian Open | A | A | A | A | 4R | 2R | 0 / 2 | 4–2 | 67% |
| French Open | Q1 | 1R | Q1 | 1R | 1R | 1R | 0 / 4 | 0–4 | 0% |
| Wimbledon | NH | A | A | Q1 | 2R | 2R | 0 / 2 | 2–2 | 50% |
| US Open | A | A | A | 1R | 2R | Q3 | 0 / 2 | 1–2 | 33% |
| Win–loss | 0–0 | 0–1 | 0–0 | 0–2 | 5–4 | 2–3 | 0 / 10 | 7–10 | 41% |
| ATP Tour Masters 1000 | |||||||||
| Indian Wells Masters | NH | A | A | A | Q1 | Q1 | 0 / 0 | 0–0 | – |
| Miami Open | NH | A | A | A | Q1 | A | 0 / 0 | 0–0 | – |
| Monte-Carlo Masters | NH | A | A | A | A | A | 0 / 0 | 0–0 | – |
| Madrid Open | NH | Q2 | A | Q2 | A | A | 0 / 0 | 0–0 | – |
| Italian Open | A | A | A | A | A | A | 0 / 0 | 0–0 | – |
| Canadian Open | NH | A | A | A | Q2 | A | 0 / 0 | 0–0 | – |
| Cincinnati Open | A | A | A | A | Q2 | 2R | 0 / 1 | 0–1 | 0% |
| Shanghai Masters | NH | A | 2R | 2R | 0 / 2 | 2–2 | 50% | ||
| Paris Masters | Q1 | A | A | Q1 | 3R | 0 / 1 | 1–1 | 50% | |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 2–2 | 1–2 | 0 / 4 | 3–4 | 43% |
| Tournament | 2020 | 2021 | 2022 | 2023 | SR | W–L | Win % |
| Grand Slam tournaments | |||||||
| Australian Open | A | A | A | A | 0 / 0 | 0–0 | – |
| French Open | 1R | 2R | A | A | 0 / 2 | 1–2 | 33% |
| Wimbledon | NH | A | A | A | 0 / 0 | 0–0 | – |
| US Open | A | A | A | A | 0 / 0 | 0–0 | – |
| Win–loss | 0–1 | 1–2 | 0–0 | 0–0 | 0 / 2 | 1–2 | 33% |
| Legend |
| Grand Slam (0–0) |
| ATP 1000 (0–0) |
| ATP 500 (0–0) |
| ATP 250 (0–1) |
| Finals by surface |
| Hard (0–0) |
| Clay (0–1) |
| Grass (0–0) |
| Finals by setting |
| Outdoor (0–1) |
| Indoor (0–0) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jul 2025 | Austrian Open Kitzbühel, Austria | ATP 250 | Clay | Alexander Bublik | 4–6, 3–6 |
| Legend |
| ATP Challenger Tour (4–5) |
| Finals by surface |
| Hard (4–4) |
| Grass (0–1) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Sep 2022 | Nonthaburi Challenger II, Thailand | Challenger | Hard | Omar Jasika | 7–6(8–6), 6–4 |
| Loss | 1–1 | Sep 2022 | Nonthaburi Challenger III, Thailand | Challenger | Hard | Stuart Parker | 4–6, 1–4 ret. |
| Win | 2–1 | Jan 2023 | Nonthaburi Challenger II, Thailand | Challenger | Hard | Lloyd Harris | 7–6(7–5), 6–2 |
| Loss | 2–2 | Jan 2023 | Nonthaburi Challenger III, Thailand | Challenger | Hard | Sho Shimabukuro | 2–6, 5–7 |
| Loss | 2–3 | Jun 2023 | Nottingham Open, United Kingdom | Challenger | Grass | Andy Murray | 4–6, 4–6 |
| Loss | 2–4 | Jul 2023 | Lexington Challenger, US | Challenger | Hard | Steve Johnson | 6–7(5–7), 4–6 |
| Win | 3–4 | Jan 2024 | Open Nouvelle-Calédonie, New Caledonia (France) | Challenger | Hard | Enzo Couacaud | 6–1, 6–1 |
| Loss | 3–5 | Oct 2024 | Shenzhen Longhua Open, China | Challenger | Hard | Mackenzie McDonald | 4–6, 6–7(4–7) |
| Win | 4–5 | Oct 2025 | Jinan Open, China | Challenger | Hard | Mackenzie McDonald | 6–3, 6–2 |
| Legend |
| ITF WTT (3–3) |
| Finals by surface |
| Hard (3–1) |
| Clay (0–2) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Oct 2019 | M15 Pretoria, South Africa | WTT | Hard | Alexander Donski | 6–7(3–7), 7–6(7–5), 6–7(6–8) |
| Win | 1–1 | Dec 2020 | M15 Torelló, Spain | WTT | Hard | Quentin Robert | 4–6, 7–6(7–3), 6–2 |
| Loss | 1–2 | Apr 2021 | M25 Meerbusch, Germany | WTT | Clay | Alexander Erler | 2–6, 6–4, 5–7 |
| Loss | 1–3 | Aug 2021 | M25+H Bacău, Romania | WTT | Clay | Yshai Oliel | 4–6, 6–4, 4–6 |
| Win | 2–3 | Oct 2021 | M25 Setúbal, Portugal | WTT | Hard | Rinky Hijikata | 7–5, 6–0 |
| Win | 3–3 | Oct 2021 | M25 Quinta do Lago, Portugal | WTT | Hard | Naoki Nakagawa | 6–3, 6–4 |
| Legend |
| ITF WTT (0–2) |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Dec 2020 | M15 Torelló, Spain | WTT | Hard | Leandro Riedi | Gerard Granollers Pujol Oriol Roca Batalla | 6–7(7–9), 6–3, [9–11] |
| Loss | 0–2 | Apr 2021 | M25 Angers, France | WTT | Clay | Titouan Droguet | Manuel Guinard Corentin Denolly | walkover |
| Result | Year | Tournament | Surface | Opponent | Score |
| Loss | 2020 | Australian Open | Hard | Harold Mayot | 4–6, 1–6 |
| Season | 2024 | 2025 | Total |
| Wins | 1 | 0 | 1 |
| # | Player | Rank | Event | Surface | Rd | Score | ACR |
| 2024 | |||||||
| 1. | Holger Rune | 8 | Australian Open, Australia | Hard | 2R | 7–6(7–4), 6–4, 4–6, 6–3 | 122 |