| Collin Altamirano | |
| Residence: | Sacramento, California, USA |
| Birth Date: | 7 December 1995 |
| Height: | 6 ft 2 in |
| College: | University of Virginia |
| Turnedpro: | 2017 |
| Plays: | Right-handed (two-handed backhand) |
| Careerprizemoney: | $192,227 |
| Singlesrecord: | 0–2 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Singlestitles: | 0 |
| Highestsinglesranking: | No. 267 (24 June 2019) |
| Currentsinglesranking: | No. 844 (24 October 2024) |
| Usopenresult: | 1R (2013, 2018) |
| Doublesrecord: | 0–0 |
| Doublestitles: | 0 |
| Highestdoublesranking: | No. 458 (30 November 2020) |
| Currentdoublesranking: | No. 988 (24 October 2024) |
| Updated: | 24 Oct 2024 |
Collin Altamirano (born December 7, 1995) is an American professional tennis player.
Altamirano won the 2013 USTA Boys 18 National Championship as an unseeded player, the first ever to do so, defeating Jared Donaldson 6–1, 6–2, 6–4[1] in the final. This earned him a wild card entry into the 2013 U.S. Open where he lost to 22-seed Philipp Kohlschreiber of Germany in the first round. Prior to the 2013 U.S. Open, Altamirano had only played in six professional-level matches, all at the ITF Men's Circuit level (commonly referred to as Futures), and had lost all six.[2]
Altamirano currently plays with the Wilson Blade racquet and Solinco Tour Bite strings, wearing Babolat Propulse 4 shoes.[3]
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | USA F2, Long Beach | Futures | Hard |  Marcos Giron | 6–7(3–7), 1–6 | ||
| Win | 1–1 | USA F2, Long Beach | Futures | Hard |  Emilio Gómez | 6–1, 7–5 | ||
| Win | 2–1 | Singapore F2, Singapore | Futures | Hard |  Takuto Niki | 7–6(7–5), 6–3 | ||
| Win | 3–1 | M15 Austin, US | World Tennis Tour | Hard |  Jacob Fearnley | 4–6, 6–4, 6–4 |