Such a ban did not operate in other countries and massed road racing continued as before. That made little difference to the British because the few international events to which they sent riders, notably the Olympic and world championship road races, had been run as individual time trials. It was as a 100-mile [162 km] time-trial, in Shropshire, that Britain organised the world championship road race in 1922. Then in 1933 the UCI decided that championships would be massed-start events. The NCU organised its 1933 world championship trial as a circuit race at Brooklands near Weybridge in Surrey. This and Donington Park in the north Midlands remained the sole venues for massed start racing on mainland Britain until 1942, along with the Snaefell Mountain Course on the neighbouring Isle of Man.