Topzle Updated: Wikipedia source
Alex T. Michelsen (born August 25, 2004) is an American professional tennis player. He has a career-high ATP singles ranking of world No. 30, achieved on 14 July 2025, and a best doubles ranking of No. 67, achieved on 30 June 2025. He is currently the No. 7 American singles player.
| W | F | SF | QF | | RR | Q# | DNQ | A | NH |
| Tournament | 2023 | 2024 | 2025 | SR | W–L | Win % |
| Grand Slam tournaments | ||||||
| Australian Open | A | 3R | 4R | 0 / 2 | 5–2 | 71% |
| French Open | A | 1R | 1R | 0 / 2 | 0–2 | 0% |
| Wimbledon | A | 1R | 1R | 0 / 2 | 0–2 | 0% |
| US Open | 2R | 2R | 1R | 0 / 3 | 2–3 | 40% |
| Win–loss | 1–1 | 3–4 | 3–4 | 0 / 9 | 7–9 | 44% |
| ATP 1000 | ||||||
| Indian Wells Open | Q1 | 2R | 3R | 0 / 2 | 2–2 | 50% |
| Miami Open | A | 2R | 2R | 0 / 2 | 1–2 | 33% |
| Monte-Carlo Masters | A | Q1 | A | 0 / 0 | 0–0 | – |
| Madrid Open | A | 1R | 1R | 0 / 2 | 0–2 | 0% |
| Italian Open | A | 1R | 2R | 0 / 2 | 0–2 | 0% |
| Canadian Open | A | 1R | QF | 0 / 2 | 3–2 | 60% |
| Cincinnati Open | A | 2R | 3R | 0 / 2 | 2–2 | 50% |
| Shanghai Masters | A | 2R | 2R | 0 / 2 | 1–2 | 33% |
| Paris Masters | A | 2R | 1R | 0 / 2 | 1–2 | 33% |
| Win–loss | 0–0 | 5–8 | 5–8 | 0 / 16 | 10–16 | 38% |
| Career statistics | ||||||
| Tournaments | 5 | 29 | 26 | Career total: 60 | ||
| Titles | 0 | 0 | 0 | Career total: 0 | ||
| Finals | 1 | 2 | 0 | Career total: 3 | ||
| Overall win–loss | 7–8 | 34–30 | 25–27 | 0 / 60 | 66–65 | 50% |
| Year-end ranking | 97 | 42 | ||||
| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2024 | Cincinnati Open | Hard | Mackenzie McDonald | Marcelo Arévalo Mate Pavić | 2–6, 4–6 |
| Loss | 2025 | Shanghai Masters | Hard | André Göransson | Kevin Krawietz Tim Pütz | 4–6, 4–6 |
| Legend |
| Grand Slam (0–0) |
| ATP 1000 (0–0) |
| ATP 500 (0–0) |
| ATP 250 (0–3) |
| Finals by surface |
| Hard (0–1) |
| Clay (0–0) |
| Grass (0–2) |
| Finals by setting |
| Outdoor (0–3) |
| Indoor (0–0) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jul 2023 | Hall of Fame Open, US | ATP 250 | Grass | Adrian Mannarino | 2–6, 4–6 |
| Loss | 0–2 | Jul 2024 | Hall of Fame Open, US | ATP 250 | Grass | Marcos Giron | 7–6(7–4), 3–6, 5–7 |
| Loss | 0–3 | Aug 2024 | Winston-Salem Open, US | ATP 250 | Hard | Lorenzo Sonego | 0–6, 3–6 |
| Legend |
| Grand Slam (0–0) |
| ATP 1000 (0–2) |
| ATP 500 (0–0) |
| ATP 250 (0–1) |
| Finals by surface |
| Hard (0–2) |
| Clay (0–0) |
| Grass (0–1) |
| Finals by setting |
| Outdoor (0–3) |
| Indoor (0–0) |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Aug 2024 | Cincinnati Open, US | ATP 1000 | Hard | Mackenzie McDonald | Marcelo Arévalo Mate Pavić | 2–6, 4–6 |
| Loss | 0–2 | Jun 2025 | Stuttgart Open, Germany | ATP 250 | Grass | Rajeev Ram | Santiago González Austin Krajicek | 4–6, 4–6 |
| Loss | 0–3 | Sep 2025 | Shanghai Masters, China | ATP 1000 | Hard | André Göransson | Kevin Krawietz Tim Pütz | 4–6, 4–6 |
| Legend |
| ATP Challenger Tour (3–2) |
| ITF WTT (2–3) |
| Finals by surface |
| Hard (4–5) |
| Clay (1–0) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Feb 2023 | Georgia's Rome Challenger, US | Challenger | Hard (i) | Jordan Thompson | 4–6, 2–6 |
| Win | 1–1 | Jul 2023 | Chicago Men's Challenger, US | Challenger | Hard | Yuta Shimizu | 7–5, 6–2 |
| Win | 2–1 | Nov 2023 | Knoxville Challenger, US | Challenger | Hard (i) | Denis Kudla | 7–5, 4–6, 6–2 |
| Loss | 2–2 | Nov 2023 | Champaign Challenger, US | Challenger | Hard (i) | Patrick Kypson | 4–6, 3–6 |
| Win | 3–2 | Apr 2025 | Estoril Open, Portugal | Challenger | Clay | Andrea Pellegrino | 6–4, 6–4 |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Oct 2022 | M15 Winston-Salem, US | WTT | Hard (i) | Toby Samuel | 1–6, 5–7 |
| Win | 1–1 | Nov 2022 | M15 East Lansing, US | WTT | Hard (i) | Alexander Kotzen | 7–6(7–2), 6–1 |
| Loss | 1–2 | Jan 2023 | M25 Malibu, US | WTT | Hard | Arthur Fery | 4–6, 6–2, 4–6 |
| Win | 2–2 | Jan 2023 | M15 Edmond, US | WTT | Hard (i) | Lucas Renard | 6–7(5–7), 7–6(7–4), 6–1 |
| Loss | 2–3 | Mar 2023 | M25 Calabasas, US | WTT | Hard | Nathan Ponwith | 3–6, 7–6(7–5), 5–7 |
| Legend |
| ATP Challenger Tour (0–0) |
| ITF WTT (1–1) |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Aug 2022 | M15 Memphis, US | WTT | Hard | Cooper Williams | Millen Hurrion Finn Reynolds | 0–6, 1–6 |
| Win | 1–1 | Nov 2022 | M15 East Lansing, US | WTT | Hard (i) | Learner Tien | Joshua Goodger Emile Hudd | 6–4, 6–3 |
| Season | 2024 | 2025 | Total |
| Wins | 1 | 1 | 2 |
| # | Player | Rk | Event | Surface | Rd | Score | Rk | Ref | |
| 2024 | |||||||||
| 1. | Alex de Minaur | 9 | Los Cabos Open, Mexico | Hard | 2R | 6–4, 6–1 | 74 | ||
| 2025 | |||||||||
| 2. | Lorenzo Musetti | 10 | Canadian Open, Canada | Hard | 3R | 3–6, 7–6(7–4), 6–4 | 34 | ||
| Result | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | Aug 2025 | Stars of the Open, US Open Fan Week, New York, US | Hard | Andy Roddick | Juan Martín del Potro João Fonseca | 9–11 |
| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2022 | Australian Open | Hard | Daniel Vallejo | Bruno Kuzuhara Coleman Wong | 3–6, 6–7(3–7) |
| Win | 2022 | Wimbledon | Grass | Sebastian Gorzny | Gabriel Debru Paul Inchauspé | 7–6(7–5), 6–3 |