Collin Altamirano
American tennis player
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 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.
Gear
Altamirano currently plays with the Wilson Blade racquet and Solinco Tour Bite strings, wearing Babolat Propulse 4 shoes.
Tournaments
2013 USTA Boys' 18 Champion - Kalamazoo, MI - USTA Nationals: Collin Altamirano becomes first unseeded player to win singles title
2013 US Open – Boys' singles – Lost in quarterfinals to #1 seeded Alexander Zverev of Germany. Collin was the only American in the Junior Boys' Quarterfinals.
This brief starts where responsible research should: with the source description of “Collin Altamirano” as american tennis player. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the people & ideas register because the source frames it as american tennis player. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Oct 11, 2025. The linked authority identifier is Q14653878. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1995 and 2013.
Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Collin Altamirano” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.