The 25th BRDC International Trophy was a non-championship Formula One race held at Silverstone on 8 April 1973. The race was run in connection with a Formula 5000 event.

Classification

Note: a blue background indicates a Formula 5000 entrant.

Pos	Driver	Constructor	Laps	Time/Ret.
1	Jackie Stewart	Tyrrell-Ford	40	52:53.2
2	Ronnie Peterson	Lotus-Ford	40	+ 10.4 s
3	Clay Regazzoni	BRM	40
4	Peter Revson	McLaren-Ford	40
5	Niki Lauda	BRM	40
6	George Follmer	Shadow-Ford	39	+ 1 Lap
7	Gijs van Lennep	Lola-Chevrolet	38	+ 2 Laps
8	Tom Belsø	Lola-Chevrolet	38	+ 2 Laps
9	Vern Schuppan	BRM	38	+ 2 Laps
10	Keith Holland	Trojan-Chevrolet	38	+ 2 laps
11	Tony Dean	Chevron-Chevrolet	38	+ 2 laps
12	Clive Santo	Surtees-Chevrolet	37	+ 3 Laps
13	Bobby Brown	Chevron-Chevrolet	37	+ 3 Laps
Ret	Brett Lunger	Lola-Chevrolet	33	+ 7 laps
Ret	David Oxton	Begg-Ford	27	Differential
Ret	Mike Hailwood	Surtees-Ford	27	Differential
Ret	Howden Ganley	Iso-Marlboro-Ford	24	Oil pressure
Ret	Denny Hulme	McLaren-Ford	24	Oil pressure
Ret	David Hobbs	Lola-Chevrolet	23	Engine
Ret	Bob Evans	Trojan-Chevrolet	21	Engine
Ret	Jock Russell	McRae-Chevrolet	17	Engine
Ret	Steve Thompson	Chevron-Chevrolet	17	Engine
Ret	Carlos Pace	Surtees-Ford	16	Wheel nut
Ret	Teddy Pilette	Chevron-Chevrolet	10	Engine
Ret	Ray Allen	Surtees-Chevrolet	6	Fuel pressure
Ret	Graham McRae	McRae-Chevrolet	5	Engine
Ret	Ian Ashley	Lola-Chevrolet	4	Accident
Ret	Jackie Oliver	Shadow-Ford	1	Clutch
Ret	Emerson Fittipaldi	Lotus-Ford	1	Clutch
Sources:[1][2][3]