Phillip Jeffrey Hyett (born August 10, 1983) is an American software developer, technology entrepreneur, racing driver, and a co-founder of GitHub, an Internet hosting service for software development and version control using Git, which he created with Tom Preston-Werner and Chris Wanstrath in 2008.
In 2022, Hyett founded an auto racing team, AO Racing in the IMSA WeatherTech SportsCar Championship. He himself also competes in the IMSA LMP2 class and is a 24 Hours of Le Mans class winner.
Early life Hyett was born on August 10, 1983, and grew up in Naperville, Illinois. He earned a bachelor's degree in computer science from North Central College.
Career After graduation, Hyett moved to San Francisco. He was a senior software engineer at CNET Networks, and then a partner at Error Free, before co-founding GitHub in 2008.
Following the acquisition of GitHub by Microsoft in June 2018, Hyett's stake in the company had an estimated value of "close to $1 billion". In 2021, his net worth was estimated at $1.6 billion.
Personal life Hyett is married to Kendra, who works in the non-profit sector, and has a bachelor's degree in English from North Central College. They have two children and live in west Chicago.
Racing career
In 2022, Hyett made his racing debut at the Watkins Glen circuit in the GT World Challenge America series, driving for Team Hardpoint alongside Gunnar Jeannette. The duo subsequently partook in the final round of the Le Mans Cup prior to moving into the LMGTE Am class of the FIA World Endurance Championship. Led by pro driver Ben Barnicoat, Hyett and Jeannette finished second on their first WEC outing at Bahrain.
Having formed AO Racing in the autumn of 2022, the Hyett and Jeannette duo partnered with WEC outfit Team Project 1 to contest the full season in 2023. As well as that, Hyett took part in the GTD class of the IMSA SportsCar Championship, driving together with Sebastian Priaulx. The campaign did not prove fruitful, as Hyett missed out on any podiums in addition to suffering a crash in qualifying which made him miss the 6 Hours of Spa-Francorchamps due to a back injury.
Hyett experienced a turnaround during the winter, where he partnered Paul-Loup Chatin and Harry Tincknell in the LMP2 class of the Asian Le Mans Series. After two top-five finishes at Sepang, Hyett scored the first pole position of his car at the Dubai Autodrome. Though he and his Proton Competition teammates finished a lowly eighth in the teams' standings, Hyett had demonstrated improved pace in the leadup to a full-time switch to the category, as he and Chatin paired up for AO Racing in the IMSA SportsCar Championship.
Hyett also took part in the 24 Hours of Le Mans in 2024, driving an AO Racing Oreca 07 run by TF Sport alongside Louis Delétraz and Alex Quinn. In 2025, he won the LMP2 Pro-Am class and finished on the overall LMP2 podium.
Racing record
Racing career summary SeasonSeriesTeamRacesWinsPolesF/LapsPodiumsPointsPosition2022FIA World Endurance Championship - LMGTE AmTeam Project 1100012718thGT World Challenge America - Pro-AmTeam Hardpoint10000417thGT America Series - SR03200110NC†Le Mans Cup - GT3Schnitzelalm Racing100000NC† 2023FIA World Endurance Championship - LMGTE AmProject 1 – AO400002417th 24 Hours of Le Mans - LMGTE Am10000N/A7th IMSA SportsCar Championship - GTD AO Racing Team90000201516th Porsche Carrera Cup North America Kelly-Moss Road and Race60000038th 2023–24 Asian Le Mans Series - LMP2 Proton Competition50100309th2024 IMSA SportsCar Championship - LMP2 AO Racing7040119426th 24 Hours of Le Mans - LMP2 AO by TF 1 0 0 0 0 N/A 6th2025 IMSA SportsCar Championship - LMP2 AO Racing 7 2 2 0 3 2254 1st European Le Mans Series - LMP2 Pro-Am AO by TF 6 1 2 0 5 100 1st 24 Hours of Le Mans - LMP2 Pro-Am 1 1 0 0 1 N/A1st2026IMSA SportsCar Championship - LMP2AO Racing 6 1 1 1 2 1842* 4th*European Le Mans Series - LMP2AO by TF 5 0 0 0 2 45* 7th* 24 Hours of Le Mans - LMP2 Pro-Am 1 0 0 0 1 N/A3rd † As Hyett was a guest driver, he was ineligible to score championship points.
Complete FIA World Endurance Championship results (key) (Races in bold indicate pole position; races in italics indicate fastest lap) Year Entrant Class Chassis Engine 1 2 3 4 5 6 7 Rank Points 2022 Team Project 1 LMGTE Am Porsche 911 RSR-19 Porsche 4.2 L Flat-6 SEB SPA LMS MON FUJ BHR 18th 27 2023 Project 1 – AO LMGTE Am Porsche 911 RSR-19 Porsche 4.2 L Flat-6 SEB PRT SPA LMS MNZ FUJ BHR 17th 24Sources:
24 Hours of Le Mans results Year Team Co-Drivers Car Class Laps 2023 Project 1 - AO Matteo Cairoli Gunnar Jeannette Porsche 911 RSR-19 GTEAm 309 35th 7th 2024 AO by TF Louis Delétraz Alex Quinn Oreca 07-Gibson LMP2 295 20th 6th LMP2 Pro-Am 2nd 2025 AO by TF Dane Cameron Louis Delétraz Oreca 07-Gibson LMP2 366 20th 3rd LMP2 Pro-Am 1st 2026 AO by TF James Allen Dane Cameron Oreca 07-Gibson LMP2 356 24th10th LMP2 Pro-Am 3rdSources:
Complete IMSA SportsCar Championship results (key) (Races in bold indicate pole position) Year Team Class Make Engine 1 2 3 4 5 6 7 8 9 10 11 Rank PointsRef 2023 AO Racing Team GTD Porsche 911 GT3 R (992) Porsche 4.2 L Flat-6 DAY SEB LBH MON WGL MOS LIM ELK VIR IMS PET 16th 20152024AO RacingLMP2Oreca 07Gibson GK428 4.2 L V8DAYSEBWGLMOSELKIMSATL 6th 1942 2025 AO Racing LMP2 Oreca 07 Gibson GK428 4.2 L V8 DAY SEB WGL MOS ELK IMS PET 1st 2254 2026 AO Racing LMP2 Oreca 07 Gibson GK428 4.2 L V8 DAY SEB WGL MOS ELK IMS PET 4th* 1842*Source:
Complete Asian Le Mans Series results (key) (Races in bold indicate pole position) (Races in italics indicate fastest lap) + Year Team Class Car Engine12345Pos.Points 2023–24 Proton Competition LMP2 Oreca 07 Gibson GK428 4.2 L V8 SEP1 SEP2 DUB ABU1 ABU2 9th 30Source:
Complete European Le Mans Series results (key) (Races in bold indicate pole position; results in italics indicate fastest lap) Year Entrant Class Chassis Engine 1 2 3 4 5 6 Rank Points 2025 AO by TF LMP2 Pro-Am Oreca 07 Gibson GK428 4.2 L V8 CAT LEC IMO SPA SIL ALG 1st 1002026 AO by TF LMP2 Pro-Am Oreca 07 Gibson GK428 4.2 L V8 CAT LEC IMO SPA SIL ALG 7th* 45* * Season still in progress.
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