Alfonso Diaz is a racing driver from Puerto Rico who competes in SCCA Regionals. Diaz has recorded 3 wins and 10 podiums from 26 starts.[1]
A Racer Rating of 2,875 ranks Diaz 9055th of 38,983 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.
| 2026-06-28 | Daytona International Speedway ITS | P4 | โ71 |
| Rating won | Race | Series | Finish |
|---|---|---|---|
| +145 | Road America 2025 | Mustang Challenge | P1 |
| +145 | Circuit of the Americas (MC) 2025 | Mustang Challenge | P1 |
| +143 | Indianapolis Motor Speedway RC 2024 | Mustang Challenge | P1 |
| +126 | Sebring International Raceway 2025 | Mustang Challenge | P2 |
| +125 | Indianapolis Motor Speedway RC 2024 | Mustang Challenge | P2 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | โธSCCA Regionals | 1 | 0 | 0 | 0 | 0 | 0 | P16 | โ71 | 2,875 | |
| 2025 | โธMustang Challenge | TechSport | 12 | 2 | 8 | 0 | 0 | 0 | P3 | +555 | 2,946 |
| 2024 | โธTGRNA GR Cup North America | TechSport Racing | 11 | 0 | 0 | 0 | 0 | 0 | P21 | +1,040 | 2,390 |
| โธMustang Challenge | TechSport Racing | 2 | 1 | 2 | 0 | 0 | 0 | P7 | +268 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| ๐บ๐ธ Alex BachouraFIA Bronze | 3,171 | 14 | 6 | 8 | 43% |
| ๐บ๐ธ Thomas TaitFIA Bronze | 2,873 | 14 | 10 | 4 | 71% |
| ๐บ๐ธ Stephen VajdaFIA Bronze | 2,354 | 14 | 10 | 4 | 71% |
| ๐บ๐ธ Zachry LeeFIA Bronze | 3,278 | 12 | 7 | 5 | 58% |
| ๐บ๐ธ Paolo Salvatore | 2,292 | 12 | 8 | 4 | 67% |
| ๐บ๐ธ Joseph Dederichs | 2,162 | 12 | 10 | 2 | 83% |
| ๐บ๐ธ Westin WorkmanFIA Silver | 4,318 | 11 | 0 | 11 | 0% |
| ๐บ๐ธ Spike Kohlbecker | 4,069 | 11 | 0 | 11 | 0% |
| ๐บ๐ธ Gresham WagnerFIA Silver | 3,919 | 11 | 0 | 11 | 0% |
| ๐บ๐ธ Jaxon Bell | 3,749 | 11 | 1 | 10 | 9% |
| ๐บ๐ธ Ford KochHigher-rated | 3,780 | 9 | 1 | 8 | 11% |
| ๐จ๐ฆ Braydon ArthurFIA Silver | 3,686 | 7 | 2 | 5 | 29% |
| ๐บ๐ธ Devin AndersonHigher-rated | 3,595 | 9 | 1 | 8 | 11% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 9,045 | ๐ซ๐ฎ Toni Teittinen | Formula 3 Macau | 2,878 |
| 9,046 | ๐ณ๏ธ Richard Altman | ARCA Menards Series | 2,877 |
| 9,047 | ๐ฏ๐ต Shigeki Matsui | Formula 3 Macau | 2,877 |
| 9,048 | ๐ช๐ธ Zach Fourie | US F4 | 2,877 |
| 9,049 | ๐บ๐ธ Corbin Collins | Mustang Challenge | 2,876 |
| 9,050 | ๐ณ๏ธ Darin Matthews | ARCA Menards Series | 2,876 |
| 9,051 | ๐ฆ๐ท Lucas Carabajal | Turismo Carretera | 2,876 |
| 9,052 | ๐ณ๏ธ Pechito Lopez | Stock Car Pro Series | 2,876 |
| 9,053 | ๐ฒ๐ฝ Sam Urus | Spanish F4 | 2,876 |
| 9,054 | ๐ณ๏ธ Tommy O Leary IV | ARCA Menards Series | 2,876 |
| 9,055 | ๐ต๐ท Alfonso Diaz | SCCA Regionals | 2,875 |
| 9,056 | ๐ณ๏ธ Bob Accardo Jr | Trans-Am TA2 | 2,875 |
| 9,057 | ๐บ๐ธ Colin Garett | GT4 America | 2,875 |
| 9,058 | ๐บ๐ธ Tim Viens | ARCA Menards Series | 2,875 |
| 9,059 | ๐บ๐ธ Bacon Zelenka | Ligier JS F4 Series | 2,874 |
| 9,060 | ๐ณ๏ธ Christian Cole | Porsche Carrera Cup NA | 2,874 |
| 9,061 | ๐ฎ๐น Erwin Zanotti | GT World Challenge Europe | 2,874 |
| 9,062 | ๐ง๐ท Filippo Fiorentino | Spanish F4 | 2,874 |
| 9,063 | ๐ฌ๐ง Harry Burgoyne | GB4 | 2,874 |
| 9,064 | ๐ฏ๐ต Hiroshi Nakayama | Formula 3 Macau | 2,874 |
| 9,065 | ๐ฌ๐ง Jeff Wilson | PCA Club Racing | 2,874 |
Alfonso Diaz is a United States-based driver in his second season of racing, with 25 starts across two series in 2024 and 2025. He competes at a semi-professional level in entry-level single-seater and production-car racing, with a Racer Rating of 2,709 placing him among developing drivers in national and club-level fields. His primary home has been the Mustang Challenge, where he has recorded three wins and ten podiums from fourteen starts, demonstrating consistent competitiveness in that series. By contrast, his eleven starts in the TGRNA GR Cup North America yielded no podium finishes, suggesting greater difficulty in that field.[1]
Diaz's head-to-head record against his most frequent rivals is mixed. He has a winning record against Tom Tait, Stephen Vajda, and Joseph Dederichs, finishing ahead of each more often than behind them, which reflects competitive parity or advantage in those matchups. Against stronger drivers such as Zachry Lee and Alex Bachoura, both FIA Bronze-graded former champions, Diaz trails in the head-to-head count. However, he has demonstrated occasional capacity to finish ahead of considerably stronger drivers: he has beaten silver-graded Braydon Arthur twice and posted isolated top finishes over professionals such as Ford Koch and Devin Anderson. His average classified finish of P11.3 indicates a driver who typically finishes in the mid-field and relies on consistency for his podium accumulation.
Diaz races primarily for TechSport Racing, which has fielded a diverse roster and maintains a competitive win record across its entries. Recent activity shows continued involvement in the Mustang Challenge through mid-2025, including a race victory shared at the Le Mans Invitational and a podium finish at Road America.