About Gianni Leoni
Lived 1915 – 1951 (aged 36). Gianni Leoni was an Italian motorcycle racer.
Gianni Leoni (1 March 1915 - 15 August 1951) was an Italian Grand Prix motorcycle road racer from Como. His best years were in 1950 when he finished second to Bruno Ruffo in the 125cc world championship and in the 1951 season, when he again finished in second place, this time to Carlo Ubbiali. Leoni was the winner of the first Nations Grand Prix in the inaugural 1949 Grand Prix motorcycle racing season. He was killed while competing in the 1951 Ulster Grand Prix after colliding with his team-mate Sante Geminiani, who also died in this incident.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Gianni Leoni's life
Named in this biography and alive at the same time
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped Gianni Leoni's
Frequently asked questions
Who was Gianni Leoni?
Italian motorcycle racer (1915–1951)
When was Gianni Leoni born?
Gianni Leoni was born on 1 March 1915 in Como.
When did Gianni Leoni die?
Gianni Leoni died on 15 August 1951 in Belfast.
What was Gianni Leoni's occupation?
Gianni Leoni was a motorcycle racer.
What nationality was Gianni Leoni?
Gianni Leoni was Italian.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Gianni Leoni. https://biography.guide/gianni-leoni/
MLA: "Gianni Leoni." Biography.guide, https://biography.guide/gianni-leoni/.
Chicago: "Gianni Leoni." Biography.guide. https://biography.guide/gianni-leoni/.
Data last updated: 2026-09-27 · Spot an error? Report a correction.
Page generated 2026-09-27 05:16 UTC