1931 Mountain Championship
17 October - Brooklands: 15 laps x 1.897 km = 28.45 km

Pole Position: N/A
Fastest lap: Henry Birkin  (Maserati 26M)    56.0

Results:

1 Henry Birkin         Maserati 26M (8C-2800)    14.26.0
2 Malcolm Campbell     Mercedes-Benz SS          14.50.0
3 Clifton Penn-Hughes  Bugatti T35T              15.00.0
4 Chris Staniland      Bugatti T37A              15.13.6
5 Brian Lewis          Talbot 105                15.33.0
6 Francis Howe         Delage 15SB               15.38.8