Federico Gaio
Federico Gaio is an Italian tennis coach and a former professional player. He reached his career high ATP singles ranking of World No. 124 in February 2020. He reached a career high in doubles of No. 163 on 2 November 2020, following his maiden ATP doubles final at the 2020 Rio Open partnering Salvatore Caruso.
He competed mainly on the ATP Challenger Tour and the ITF circuit.
He won four Challenger and nine ITF futures singles and three Challenger and four ITF futures doubles titles.
Coaching
In July 2025 he began coaching top 10 player Jasmine Paolini; they parted ways in November 2025.Professional career
2015: ATP debut
He played his first ATP main draw match in the 2015 Rome Open after gaining entry as a wildcard.2018: Grand Slam singles debut
He made his Grand Slam debut at the 2018 US Open as a qualifier where he lost to tenth seed David Goffin.2020: Maiden doubles ATP final
He reached his first doubles final at the ATP 500 2020 Rio Open partnering Salvatore Caruso where they lost to Horacio Zeballos/Marcel Granollers.2023: First Challenger final since 2021
At the 2023 Piemonte Open Challenger 175 he reached his first final since July 2021 as a qualifier with a win over top seed and world No. 40 Sebastian Baez. As a result, he moved more than 100 positions up into the top 250 on 22 May 2023.ATP Tour career finals
Doubles: 1 (1 runner-up)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | |||||||||||||||||||||||||||||
| Loss | 0–1 | [2020 Rio Open – Doubles|] | Rio Open, Brazil | ATP 500 | Clay |  ATP Challenger and ITF Futures/World Tennis Tour finalsSingles: 28 (13 titles, 15 runner-ups)
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dts|May 2011