It's the TT's blue riband event today, the six lap Senior, and Manx Radio Sports Editor Tim Glover is predicting an absolute belter of a race.
It's been an incredible week for the solos, with John McGuinness setting a new official outright lap record in the Superbikes, on his way to a 15th TT win.
Elsewhere, Ian Hutchinson grabbed two wins in one day and class lap records tumbling in every race.
Then the Supersport 2 produced the double whammy of a first victory for Michael Dunlop and a first podium finish for Ramsey's Conor Cummins.
Tim says McGuinness starts out as favourite, but there are a number of others in with a shout (play audio file):
The mountain section is due to close at 9.30am and the rest of the course half an hour later.
The one lap TTXGP, the world's first clean emissions motorcycle race, is scheduled to start at 10.45am and the Pokerstars Senior TT at 1pm.
The mountain section should be open by 6pm, and the rest of the course an hour earlier.