| Challenger Tenerife Qual | 02/08 12:15 | 14 |
Gijs Brouwer
v
Giovanni Fonio |
6-1,6-0 | |
| Challenger Cesenatico | 02/03 09:00 | 25 | [454] Giovanni Fonio v Svyatoslav Gulin [443] | 4-6,4-6 | |
| Challenger Soma Bay | 01/19 09:00 | 19 |
[432] Radu Albot
v
Giovanni Fonio [458] |
4-6,6-1,6-4 | |
| Challenger Soma Bay | 01/18 11:30 | 14 | Marko Miladinovic v Giovanni Fonio | 2-6,2-6 | |
| M15 Hurghada | 01/14 09:30 | - | Giovanni Fonio v Mert Naci Turker | 2-6,6-7 | |
| Challenger Biella | 09/11 11:45 | 26 |
[416] Giovanni Fonio v
Zdenek Kolar
[276]
|
6-4,6-7,1-6 | |
| Challenger Biella | 09/09 08:00 | 25 | [192] Apolonia/Geraldo v Giovanni Fonio [416] | 6-7,4-6 | |
| Challenger Genoa | 09/02 08:00 | 25 | [243] Alvaro Guillen Meza v Giovanni Fonio [407] | 6-3,3-6,6-4 | |
| Challenger Genoa | 09/01 09:45 | 19 | [407] Giovanni Fonio v Gabriele Pennaforti [472] | 0-6,6-4,4-6 | |
| Challenger Genoa | 08/31 14:05 | 14 | Giovanni Fonio v Parikshit Somani | 6-3,6-2 | |
| Challenger Genoa | 08/31 12:00 | 14 | Giovanni Fonio v Jacopo Vasami | CANC | |
| Challenger Como | 08/29 10:20 | 26 | [158] Nicolai Budkov Kjaer v Giovanni Fonio [407] | 6-4,7-6 |
Giovanni Fonio (born 7 May 1998) is an Italian tennis player.
Fonio has a career high ATP singles ranking of world No. 269 achieved on 29 January 2024. He also has a career high doubles ranking of No. 406 achieved on 15 January 2024.
Fonio has won 2 ATP Challenger doubles title: at the 2021 Antalya Challenger III with Riccardo Bonadio and at the 2023 Internazionali di Tennis del Friuli Venezia Giulia with Francesco Forti.
In May 2022, at the qualifiers at the Internazionali d’Italia he lost to Emil Ruusuvuori.
On 30 November 2023, at the Yokkaichi Challenger in Japan, he defeated the then top 100 player Yosuke Watanuki in 3 sets.