John McGuinness will have to wait for his 20th Isle of Man TT victory after admitting he 'just wasn't fast enough' to win the second Supersport race on Wednesday.
The Morecambe rider has underlined his status as the king of the Mountain course this week, winning the Superbike and Superstock races to boost his tally of wins to 19.
Given his current form, the 40-year-old looked poised to close in on Ulster icon Joey Dunlop's record even further on Wednesday, when he lined up in the Supersport and TT Zero races.
However, McGuinness finished as the runner-up to Michael Rutter in the clean emissions race before taking fifth on the Padgetts Honda CBR600RR.
He is now preparing for Friday's prestigious Senior TT on the Isle of Man, where he starts as the favourite on his Honda TT Legends Fireblade.
“The TT Zero race was certainly something different for me and to break the 100mph barrier at out first attempt was really special,” he said.
“The guys at Mugen have built a really good bike, they've come here and completed two laps so there'll have gathered plenty of data now and will certainly come back stronger next year.
“There's plenty more to come from the bike and I was only using 50% of the energy available as the main priority was to finish the race,” he added.
“When I got to the Bungalow, I was able to increase it to 60% and I was whizzing along so perhaps if I'd have pushed the button a little bit sooner maybe we would have been closer.”