Roads around the mountain course close at 5pm today (Saturday) for the first race and final practice session at the Manx Grand Prix.
The three-lap Newcomers race is first on the agenda and is scheduled to start at 5.30pm.
Over 50 riders entered the two classes to gain their first experience of road racing in the Isle of Man.
Arguably Wayne Hamilton and Scott Smyth go into the race as favourites.
Practice for the other classes will follow the Newcomers contest.
There will be commentary on this evening's racing on Manx Radio's AM 1368 service, with coverage starting at 5pm.
Plans for 'all-age pathway' for adult autism and ADHD diagnosis by 2029
Some trailers got 'lost' during recent backlog of freight at Heysham
Police told to reassess FOI response
Census support available from next week
Mobile classroom needed to 'alleviate' pressure at Henry Bloom Primary School