Supersport, Superstock & Supertwin races taking place now.
Update 20:22 BST
The next race day is on Saturday with five races taking place throughout the day. Check back here on Motofire.com for all of the updates.
You can watch the races live online through the BBC, or follow the action here on Motofire via the live Facebook video feed below.
Thursday (Roads closed 5pm-9pm)
- Race 1 – HEL Performance Supersport Race
- Race 2 – Bayview Hotel Superstock Race
- Race 3 – Vauxhall Supertwin Race
Saturday (Roads closed 9.15am-9pm)
- Race 1 – Bet McLean.com Supersport Race
- Race 2 – Anchor Bar Superbike Race
- Race 3 – JM Paterson Supertwin Race
- Race 4 – Vauxhall NW200 Superbike Race
- Race 5 – CP Hire Superstock Race