Sonoma Raceway GT3 Cup AM

Porsche Endurance Challenge North America 2025Multi-class event, 5 classes, 19 cars

ClassesGT3 Cup P/A, 7 cars Cayman P/A, 5 carsGT3 Cup AM, 4 carsCayman AM, 2 cars Invitational, 1 cars

GT3 Cup P/A winner: Zachary VanierCayman P/A winner: Tom KopczynskiCayman AM winner: Emanuel TartaglioneInvitational winner: Luke French

Fin	Driver	Team	Rating Δ	Rating
P1	Blake McDonald	Kellymoss	+62	4,070
	Josh Conley		+175	2,600
P2	Scott Blind	Ruckus Racing	−32	3,694
P3	Charlie Hayes	CHR	−24	2,727
	Reinhold Krahn		−27	2,759
P4	Todd Parriott	Kellymoss	−55	2,141

Rating Δ is the Elo exchange from this race: taken from the cars finished behind, ceded to those ahead, net zero across the field. A shared car splits its change among co-drivers by FIA grade, so both appear at the same position.

RacerDB. Race results and driver ratings.Porsche Endurance Challenge North America 2025

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