1951 Individual Speedway World Championship

The 1951 championship retained the multi-round qualification system introduced in earlier years, with riders progressing through national and continental qualifying rounds to reach the final. The system comprised preliminary rounds, a Scandinavian round, a Continental round, and a British round, with the top finishers from each earning places in the 16-rider final at Wembley. The final was contested over 20 heats, with each rider meeting every other rider once, and points awarded on a 3-2-1-0 basis for first, second, third, and fourth places respectively. The rider accumulating the most points was declared world champion, with a run-off to break ties for first place if necessary.

The final was held on a wet track at Wembley, which favored riders skilled in slippery conditions. Jack Young, riding for the Australian team, won four of his five rides and finished with 14 points, one ahead of Sweden's Olle Nygren and England's Split Waterman, who tied on 13 points. Young's victory was notable as he was the first rider from outside the British Isles to win the title, and he did so on a track where local riders had traditionally dominated. The meeting attracted a crowd of over 80,000, reflecting the sport's immense popularity in post-war Britain. Young's win was also significant because he was a relatively late bloomer, having only begun riding in Britain in 1949 after emigrating from Australia.

The 1951 championship marked a turning point in speedway's internationalization, as it broke the British and New Zealand stranglehold on the title (previous winners had been from England or New Zealand). Young's success inspired a wave of Australian and Scandinavian riders to compete in the British leagues, which were the sport's premier competition at the time. The event also saw the debut of future world champions, including Sweden's Olle Nygren, who would go on to win the title in 1954. The 1951 final was the last to be held at Wembley until 1953, as the stadium was used for the Festival of Britain events in 1951, and it was the first final to be broadcast on television, with the BBC providing live coverage.

One of the lesser-known stories of the 1951 championship is the role of the 'second half' of the meeting, which featured a junior race that was used to test new riders. The final also saw the first use of a 'tactical substitute' rule in a world championship, allowing teams to replace a rider in a heat, though it was rarely used. The 1951 event was notable for the absence of any New Zealand riders, a first since the championship began in 1936, due to a dispute between the New Zealand governing body and the FIM over rider eligibility. Additionally, the trophy presented to Young was a new design, the 'Speedway World Cup', which had been commissioned specifically for the 1951 event and was later used for the World Team Cup. The final was also the first to be attended by the Duke of Edinburgh, who presented the trophy to Young.

Heat

A single race in speedway, typically involving four riders over four laps.

Run-off

A deciding race held to break a tie for first place.

Tactical substitute

A rule allowing a team to replace a rider in a heat, introduced experimentally in 1951.