# Manx Grand Prix fatal qualifying accidents

> Live situation record from CLSTR: https://clstr.news/situations/manx-grand-prix-fatal-qualifying-accidents
> Updated: 2026-08-22T06:03:22.000Z. Sources: 18. Developments: 2.

Two motorcycle riders died during qualifying sessions at the 2026 Manx Grand Prix on the Isle of Man.

The first fatality occurred on a Tuesday when 29-year-old Swiss rider Mauro Poncini died following a collision at Cruickshanks in Ramsey while competing in the Supertwin and Supersport categories. A second rider involved in that incident sustained minor injuries.

The second fatality occurred on Wednesday when 37-year-old British rider Sam Naughton died following a crash at Doran’s Bend during the third qualifying session. 

Organizers have initiated multi-agency investigations into the accidents. The event takes place on the Snaefell Mountain Course, a circuit noted for its high speeds and lack of significant barriers, which has seen 269 fatalities since 1907.

## Timeline

### 2026-08-22: Manx Grand Prix: Two racers killed in separate qualifying accidents

Two racers, Mauro Poncini and Sam Naughton, have died in separate qualifying accidents during the Manx Grand Prix on the Isle of Man.

2 sources. https://clstr.news/cluster/manx-grand-prix-two-racers-killed-in-separate-qualifying-accidents

### 2026-08-19: Manx Grand Prix: Two riders killed in qualifying accidents

Two riders, Mauro Poncini and Sam Naughton, have died during qualifying sessions for the 2026 Manx Grand Prix on the Isle of Man.

16 sources. https://clstr.news/cluster/manx-grand-prix-rider-dies-in-qualifying-crash

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Cite as: Manx Grand Prix fatal qualifying accidents. CLSTR, https://clstr.news/situations/manx-grand-prix-fatal-qualifying-accidents