Yes you are correct:

It is of course the Australian rider Tom Phillis who raced a developed 500cc Domiracer in the 1961 Senior TT and scored a very creditable third place behind Mike Hailwood and Bob Mclntyre who were both on Manx Nortons after the MV Agusta of Gary Hocking had dropped out.

Bearing in mind that this was the first outing for the twin in major competition it was a very fine start and even recorded a lap of 100.3 m.p.h.

Those were the days when the TT really meant something and the 100 mph lap was no mean feat.