Michael Rutter rode into the history books as he became the first rider to complete a 100mph lap on an electric-powered motorcycle at the Isle of Man TT races.
Rutter, riding the American MotoCzysz machine, achieved the milestone with a lap at 104.056mph.
The British Superbike rider pocketed a cheque for £10,000, which was up for grabs to the first competitor to complete the feat.
Rutter beat John McGuinness on the Japanese Mugen Shinden machine, with his team-mate and 2010 winner Mark Miller finishing third.
Only four bikes finished the one-lap race, with Rob Barber taking fourth – some six minutes behind McGuinness.
Rutter narrowly missed out on the chance to collect the £10,000 prize a year ago after he lapped at 99.64mph, but made amends with his third victory on the Mountain Course.
“It's absolutely awesome and it's fantastic to do it,” he said.
“You want it to be dry around here and the problem is you don't know where the damp patches are until you get there.
“If you're peeling into a corner and there's a wet patch, then it's too late.
“But we got away with it and it's brilliant. I might give John [McGuinness] ten quid from the cheque!”
McGuinness, who was competing in the TT Zero race for the first time in its four-year history, said he was delighted to put the Mugen machine on the rostrum at the first attempt.
“This bike had never turned a wheel around here and we'd only had one lap in practice, so we've got so much more data now to bring back for the future,” he said.
“The main priority for us was to finish and we did. The team has done a fantastic job and I thoroughly enjoyed it."
Miller was the fastest rider through the speed trap at Sulby on his MotoCzysz machine at 132mph.
All three riders broke the 100mph barrier, with McGuinness lapping at 102.215mph and Miller at 101.065mph.