Stefan Rzadzinski is a racing driver from Canada who last raced in GT Winter Series for Laptime Performance. Rzadzinski has recorded 0 wins and 3 podiums from 34 starts.[1]
A Racer Rating of 3,009 ranks Rzadzinski 8482th of 40,349 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, decayed for time since their last race.
| 2024-05-05 | Sebring International Raceway Pro-Am | P6 | +23 |
| 2024-05-04 | Sebring International Raceway Pro-Am | P5 | +19 |
| 2024-04-06 | Sonoma Raceway Pro-Am | P9 | −66 |
| 2024-01-21 | Autodromo Internacional Algarve CUP 2 | P4 | −25 |
| 2024-01-20 | Autodromo Internacional Algarve CUP 2 | P4 | −16 |
| Rating won | Race | Series | Finish |
|---|---|---|---|
| +72 | Edmonton International Raceway 2012 | Star Mazda Championship | P6 |
| +52 | Road Atlanta 2021 | IMSA WeatherTech | P5 |
| +35 | St. Petersburg 2012 | Star Mazda Championship | P8 |
| +31 | Trois-Rivieres Street Circuit 2017 | IMSA Prototype Challenge | P3 |
| +30 | Estoril 2024 | GT Winter Series | P2 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | ▸GT Winter Series | Laptime Performance | 4 | 0 | 2 | 0 | 0 | 0 | P11 | −107 | 3,009 |
| ▸GT4 America | Flying Lizard Motorsports | 3 | 0 | 0 | 0 | 0 | 0 | P20 | −25 | ||
| 2023 | ▸Porsche Carrera Cup NA | MDK Motorsports | 12 | 0 | 0 | 0 | 0 | 0 | P20 | −683 | 3,140 |
| 2021 | ▸IMSA WeatherTech | Forty7 Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P23 | +52 | 3,823 |
| 2019 | ▸IMSA Pilot Challenge | BGB Motorsports | 1 | 0 | 0 | 0 | 0 | 0 | P31 | +22 | 3,771 |
| 2017 | ▸IMSA Prototype Challenge | P1 Motorsports | 1 | 0 | 1 | 0 | 0 | 0 | P17 | +31 | 3,750 |
| 2013 | ▸Pro Mazda Championship | Team Pelfrey | 2 | 0 | 0 | 0 | 0 | 0 | P16 | −144 | 3,719 |
| 2012 | ▸Star Mazda Championship | JDC Motorsports | 10 | 0 | 0 | 0 | 0 | 0 | P14 | +2,512 | 3,862 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🇦🇺 Tom SargentFIA Silver | 4,707 | 12 | 1 | 11 | 8% |
| 🇬🇧 Dan ClarkeFIA Silver | 4,409 | 12 | 1 | 11 | 8% |
| 🇨🇴 Juan PiedrahitaFIA Silver | 4,316 | 12 | 2 | 10 | 17% |
| 🇻🇪 Diego Ferreira | 4,262 | 12 | 2 | 10 | 17% |
| 🇺🇸 Riley DickinsonFIA Silver | 4,162 | 12 | 1 | 11 | 8% |
| 🇳🇿 Ryan YardleyFIA Silver | 4,056 | 12 | 3 | 9 | 25% |
| 🇬🇧 Alex SedgwickFIA Silver | 3,994 | 12 | 0 | 12 | 0% |
| 🇬🇧 Will MartinFIA Silver | 3,977 | 12 | 2 | 10 | 17% |
| 🇺🇸 Varun ChokseyFIA Silver | 3,634 | 12 | 3 | 9 | 25% |
| 🇺🇸 Jason HartFIA Silver | 3,582 | 12 | 2 | 10 | 17% |
| 🇺🇸 George KurtzFIA Bronze, 3× champion | 5,617 | 1 | 1 | 0 | 100% |
| 🇺🇸 Ryan TveterHigher-rated | 5,582 | 8 | 7 | 1 | 88% |
| 🇩🇰 Malthe JakobsenFIA Gold, 3× champion | 5,474 | 1 | 1 | 0 | 100% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 8,472 | 🇮🇹 Cristian Corsini | Formula Renault Eurocup | 3,010 |
| 8,473 | 🇺🇸 Dave Zavelson | SCCA Majors | 3,010 |
| 8,474 | 🇺🇸 Gary Gibson | IMSA Prototype Challenge | 3,010 |
| 8,475 | 🇺🇸 Jackson McLerran | ARCA Menards East | 3,010 |
| 8,476 | 🏳️ John Baker | NASCAR Whelen Modified Tour | 3,010 |
| 8,477 | 🇪🇸 Pablo Montilla | Formula Renault Eurocup | 3,010 |
| 8,478 | 🇮🇹 Stefano Colombo | Formula Renault Eurocup | 3,010 |
| 8,479 | 🇺🇸 Tyler Carpenter | NASCAR Truck | 3,010 |
| 8,480 | 🇺🇸 Brad Perez | NASCAR Xfinity | 3,009 |
| 8,481 | 🇩🇪 Marko Pejic | Racing Prodigy | 3,009 |
| 8,482 | 🇨🇦 Stefan Rzadzinski | GT Winter Series | 3,009 |
| 8,483 | 🇺🇸 Dan Tomlin Jr. | Star Mazda Championship | 3,008 |
| 8,484 | 🇯🇵 Kizuku Hirota | Super GT | 3,008 |
| 8,485 | 🇫🇷 Anthony Abbasse | SKUSA SuperNationals | 3,007 |
| 8,486 | 🇳🇿 C.J. McLaughlin | ARCA Menards Series | 3,007 |
| 8,487 | 🇺🇸 Dominick Casola | ARCA Menards Series | 3,007 |
| 8,488 | 🇻🇪 Francisco Amado | Formula Renault Eurocup | 3,007 |
| 8,489 | 🇨🇦 Louka St-Jean | USF Pro 2000 | 3,007 |
| 8,490 | 🇺🇸 Nick Darinzo | Star Mazda Championship | 3,007 |
| 8,491 | 🇺🇸 Rob Pellosie | Zenith Racing Series | 3,007 |
| 8,492 | 🇳🇴 Vegard Klemetsen | British F4 | 3,007 |
Stefan Rzadzinski is a Canadian entry-level professional racing driver from Edmonton, Alberta. Graded FIA Silver within GT and endurance racing, he competes in multiclass sprint and endurance championships featuring Porsche 911 GT3 Cup cars, GT4 machinery, and prototypes. His most recent indexed activity came with MDK Motorsports in Porsche Carrera Cup NA during 2023, where he made 12 starts.[1]
Across seven seasons from 2012 to 2024, Rzadzinski accumulated 34 starts and three podiums. His record spans single-seater racing in the early 2010s, with ten starts in Star Mazda Championship in 2012 and two in Pro Mazda Championship in 2013, before moving into sportscar and endurance racing from 2017 onward. His best result came in IMSA Prototype Challenge in 2017, where he took a podium finish in an LMP3 prototype. In 2024, he competed in GT Winter Series multiclass racing, securing two podiums across four starts for Laptime Performance, and made three appearances in GT4 America's Pro-Am endurance class with Flying Lizard Motorsports.[2]
Rzadzinski typically finishes behind his regular opponents in Porsche Carrera Cup. Tom Sargent and Dan Clarke, both FIA Silver professionals with substantial careers in Porsche racing and international competition, are the drivers he meets most consistently, and both regularly outpace him. He has finished ahead of established professionals including George Kurtz, the 2023 GT World Challenge America Pro-Am and 2024 Asian Le Mans Series champion, once across their meetings, and surpassed Ryan Tveter, a Formula 3 and GP3 Series driver, seven times during their overlap in Star Mazda Championship.