Siro Zambra is a racing driver from Switzerland who competes in Racing Prodigy for Williams Esports. Zambra has recorded 0 wins and 0 podiums from 8 starts.[1]
A Racer Rating of 2,448 ranks Zambra 13856th of 40,200 indexed drivers, on an Elo scale where the strongest reach the high 8,000s. It is built from every indexed race in the driver's file.
| 2025-02-26 | Atlanta | P6 | −4 |
| 2025-02-26 | Atlanta | P7 | −54 |
| 2025-02-05 | Homestead-Miami Speedway | P6 | −28 |
| 2025-02-05 | Homestead-Miami Speedway | P8 | −107 |
| 2025-01-07 | Sebring International Raceway | P5 | — |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | ▸Racing Prodigy | Williams Esports | 8 | 0 | 0 | 0 | 0 | 17 | P21 | +1,098 | 2,448 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🇺🇸 Kamden Hibbitt | 3,599 | 8 | 0 | 8 | 0% |
| 🇺🇸 Nathan Saxon | 3,287 | 8 | 1 | 7 | 13% |
| 🇺🇸 David Dalton, Jr. | 2,985 | 8 | 0 | 8 | 0% |
| 🇮🇹 Edoardo LeoHigher-rated | 3,046 | 2 | 1 | 1 | 50% |
| 🇵🇱 Kamil PawlowskiHigher-rated | 2,877 | 1 | 1 | 0 | 100% |
| 🇧🇷 Gustavo ArielHigher-rated | 2,815 | 2 | 1 | 1 | 50% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 13,846 | 🇬🇧 Ben Short | British GT Championship | 2,449 |
| 13,847 | 🇩🇪 Desirée Müller | 24H Series | 2,449 |
| 13,848 | 🇱🇹 Jocius Deividas | 24H Series | 2,449 |
| 13,849 | 🇦🇷 Jorge Trebbiani | TC Mouras | 2,449 |
| 13,850 | 🇦🇹 Pepi Strobl | Nürburgring Langstrecken-Serie | 2,449 |
| 13,851 | 🏳️ Chad Brassfield | SKUSA SuperNationals | 2,448 |
| 13,852 | 🇺🇸 Ian CAMPBELL | Ferrari Challenge | 2,448 |
| 13,853 | 🏳️ Olivier Mrak | USF Juniors | 2,448 |
| 13,854 | 🏳️ Rob Crocker | Trans-Am | 2,448 |
| 13,855 | 🇺🇸 Ryan Persing | Mustang Challenge | 2,448 |
| 13,856 | 🇨🇭 Siro Zambra | Racing Prodigy | 2,448 |
| 13,857 | 🇩🇪 Thomas Heinrich | Nürburgring Langstrecken-Serie | 2,448 |
| 13,858 | 🇳🇱 Alex van t'Hoff | 24H Series | 2,447 |
| 13,859 | 🇩🇪 Alexander Kolb | Nürburgring Langstrecken-Serie | 2,447 |
| 13,860 | 🏳️ Anthony Snow | SKUSA SuperNationals | 2,447 |
| 13,861 | 🇺🇸 Blake Rosser | Ferrari Challenge | 2,447 |
| 13,862 | 🇺🇸 Brett Kowalski | SCCA Majors | 2,447 |
| 13,863 | 🏳️ Enrico Prosperi | SKUSA SuperNationals | 2,447 |
| 13,864 | 🇫🇷 Guillaume Roman | 24H Series | 2,447 |
| 13,865 | 🇦🇹 Gunther Ofenmacher | Nürburgring Langstrecken-Serie | 2,447 |
| 13,866 | 🇮🇹 Tiziano Cappelletti | Nürburgring Langstrecken-Serie | 2,447 |
Siro Zambra is a developing driver competing at club level, with a Racer Rating of 1,080. The driver has completed one season of racing on record, contesting eight rounds of Racing Prodigy in 2025 with Williams Esports. Zambra has yet to score a podium finish and averages sixth place across classified starts, though the field appears competitive; the team has fielded stronger drivers including Kamden Hibbitt, who carries a professional-level rating of 3,578.[1]
Zambra has raced consistently against established opposition but has not yet beaten them at scale. In head-to-head competition with three rivals who appear across multiple meetings, the driver finished behind all of them in every shared race: zero wins against Hibbitt in eight races, zero against David Dalton Jr. in eight races, and zero against Nathan Saxon in seven races. Isolated results show Zambra has occasionally finished ahead of drivers at a similar developmental level, including single victories over Gustavo Ariel, Roope Kurkipää, Alexandro Vielma and Brenna Schubert, but these do not constitute a pattern of competitive superiority. The driver finished twenty-second in the final standings for the season.