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 1,080 ranks Zambra 13036th of 17,494 indexed drivers, on an Elo scale where the strongest reach the low five figures. It is built from every indexed race in the driver's file.
| 2025-02-26 | Atlanta Motorsports Park | P6 | −1 |
| 2025-02-26 | Atlanta Motorsports Park | P7 | −54 |
| 2025-02-05 | Homestead-Miami Speedway | P6 | −15 |
| 2025-02-05 | Homestead-Miami Speedway | P8 | −99 |
| 2025-01-07 | Sebring International Raceway | P5 | +24 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | ▸Racing Prodigy | Williams Esports | 8 | 0 | 0 | 0 | 0 | 17 | P22 | −420 | 1,080 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🇺🇸 Kamden Hibbitt | 3,578 | 8 | 0 | 8 | 0% |
| 🇺🇸 David Dalton, Jr. | 2,447 | 8 | 0 | 8 | 0% |
| 🇺🇸 Nathan Saxon | 2,995 | 7 | 0 | 7 | 0% |
| 🇧🇷 Gustavo ArielHIGHER-RATED | 1,381 | 2 | 1 | 1 | 50% |
| 🇫🇮 Roope KurkipääHIGHER-RATED | 1,337 | 1 | 1 | 0 | 100% |
| 🇺🇸 Alexandro VielmaHIGHER-RATED | 1,102 | 2 | 1 | 1 | 50% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 13,026 | 🏳️ Robert Hoemke | Velocity Invitational | 1,081 |
| 13,027 | 🏳️ Roger Siebenaler | SCCA Runoffs | 1,081 |
| 13,028 | 🏳️ Roldan de Guzman | SCCA Runoffs | 1,081 |
| 13,029 | 🏳️ Steven Zinger | SVRA | 1,081 |
| 13,030 | 🏳️ Trever Degioanni | SCCA Runoffs | 1,081 |
| 13,031 | 🇬🇧 Dan Rhodes | SVRA | 1,080 |
| 13,032 | 🇩🇪 Fabian Tillmann | Nürburgring 24 Hours | 1,080 |
| 13,033 | 🇩🇪 Fritz Hebig | Nürburgring 24 Hours | 1,080 |
| 13,034 | 🇩🇪 Michael Wolpertinger | Nürburgring 24 Hours | 1,080 |
| 13,035 | 🏳️ Rob Piekarczyk | SCCA Runoffs | 1,080 |
| 13,036 | 🇨🇭 Siro Zambra | Racing Prodigy | 1,080 |
| 13,037 | 🇺🇸 Tim Peterson | SVRA | 1,080 |
| 13,038 | 🏳️ James Gregorius | SCCA Runoffs | 1,079 |
| 13,039 | 🏳️ Rob Pielsticker | SCCA Runoffs | 1,079 |
| 13,040 | 🏳️ Tim Pierce | SVRA | 1,079 |
| 13,041 | 🇩🇪 Wolfgang Kaufmann | Nürburgring 24 Hours | 1,078 |
| 13,042 | 🏳️ Amy Gould | Velocity Invitational | 1,077 |
| 13,043 | 🏳️ Dean Kiriluk | SCCA Runoffs | 1,077 |
| 13,044 | 🏳️ John Puccini | SVRA | 1,077 |
| 13,045 | 🏳️ Brandon Rambo | Radical World Finals | 1,076 |
| 13,046 | 🇩🇪 Christoph Magg | Nürburgring 24 Hours | 1,076 |
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.