Aug 23 (Reuters) - A second rider has died after a crash in qualifying for the centenary edition of the Manx Grand Prix motorcycle races on the Isle of Man, organisers said on Wednesday. Ian Bainbridge, a 69-year-old Briton who had been a regular competitor in the event since 2005, died on Tuesday evening at the exit of Kirk Michael village during the second qualifying session. Gary Vines, a 33-year-old British rider who competed in this year's TT races as well as being a Manx regular, died in Sunday's first qualifying session after an accident at Ballagarey. The Manx Grand Prix was first run in 1923 as the Manx Amateur Road Races and features mainly amateur riders competing over the island's TT course. Like the TT races the Manx ranks among the deadliest events in motorsport.

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Persons: Ian Bainbridge, Kirk Michael, Gary Vines, Sunday's, Raul Torras Martinez, Alan Baldwin, Ed Osmond Organizations: Manx, Prix, Briton, Thomson Locations: Isle of, Manx, London