William Lambros

William J. Lambros is an American professional stock car racing driver. He last competed part-time in the NASCAR Craftsman Truck Series, driving the No. 2 Ford F-150 for Reaume Brothers Racing.

Racing career

Lambros has previously competed in series such as the SMART Modified Tour, the Monaco Modified Tri-Track Series, the Formula 4 United States Championship, the TC America Series, and the Michelin Pilot Challenge.
Lambros first raced at the age of five, competing in go-karts. He then won his first karting championship at the age of thirteen before earning his racing license after completing the Skip Barber 3-Day Racing School and 2-Day Advanced Racing School. He then joined the Skip Barber Driver Development program in 2018.
In 2025, it was revealed that Lambros would make his debut in the NASCAR Craftsman Truck Series at Lime Rock Park, driving the No. 2 Ford for Reaume Brothers Racing. He made his second Truck Series start in the same truck later in the summer at Watkins Glen International.

Lambros is the older brother of fellow racing driver Dean Lambros.

Year	Entrant	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	DC	Points
2018	Momentum Motorsports w/ Skip Barber Momentum F4	VIR 1	VIR 2	VIR 3	ROA 1	ROA 2	ROA 3	MOH 1	MOH 2	MOH 3	PIT 1	PIT 2	PIT 3	NJMP 1 22	NJMP 2 17	NJMP 3 18	COTA 1	COTA 2	42nd	0

Season still in progress
Ineligible for series points