1929 Grand Prix des Frontières
19 May - Chimay: 20 laps x 10.870 km = 217.400 km

Pole position: N/A
Fastest lap: N/A

Results:

1 Willy Longueville   Bugatti 37A   1:58.54
2 Ernest André        Bugatti 37    2:08.07
3 Freddy Charlier     Bugatti 37A   2:08.28
4 Alphonse Evrard     Bugatti 40    2:19.34