Birkett 2025 LIVE | 750 Motor Club | Silverstone GP | Saturday 25th October 2025

Birkett 2025 LIVE | 750 Motor Club | Silverstone GP | Saturday 25th October 2025

Dating back to 1951, the race was the brainchild of one of the 750 Motor Club’s founder members – Holland ‘Holly’ Birkett – and following his death the event was subsequently renamed. The 2025 event will represent the 74th anniversary of the six-hour race event and, just to confuse things, the 75th Birkett event – the 50th anniversary was celebrated with an extra one–off 12-Hour Birkett race.

The race is held today on the full Silverstone Grand Prix circuit layout and as a result can accommodate up to 70 teams of between three and six drivers and between three and six cars competing in a unique relay race format – there are usually around 300 taking part in one race. Each team has to lap the circuit as many times as they can within the six hours, with only one of their team cars running at any one time. As one car comes into the pit lane, the next can be dispatched out onto the circuit.

Entry is restricted to any closed wheel car (exc. historics) subject to usual Motorsport UK safety modifications. This means an eclectic mix of competition vehicles can be on track; typically everything from MG Midgets to BMW M3s, Smart cars, TCR cars, Austin A30s, various Caterham derivatives and modern sports racing cars such as Radicals and Spires.

The event is really two events in one. Whist some of the teams comprising faster machinery will be vying for outright ‘Scratch Victory’ by recording the highest number of laps, the bulk of entries are aiming for the hotly-contested ‘Handicap ‘Victory’, which in theory could be won by any of the teams.

Each team is credited with a certain number of credit laps (calculated from the car and driver details specified when entering), presumed to have been run before the race started. The results are then calculated from the credit laps and the actual laps covered by each team in the six hours to see who has beaten the rest (and the handicapper).

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