Harrison Dessoy emerged quickest overall after free practice as he clocked a hot lap of 1min 31.708s as lap times tumbled this afternoon.
The PHR Performance Triumph rider ended the day 0.272s clear of Belgium’s Ferre Fleerackers as fastest rider this morning, points leader Kas Beekmans, was third.
Asher Durham, who had led early on in the session, finished the opening day fourth quickest, just ahead of Rhys Stephenson.
Pirelli National Sportbike Championship, Combined practice:
1. Harrison Dessoy (PHR Performance Triumph) 1min 31.708s
2. Ferre Fleerackers (B.art Racing Team) +0.272s
3. Kas Beekmans (VLR/NIWA Racing) +0.467s
4. Asher Durham (Powerslide Suzuki) +0.548s
5. Rhys Stephenson (Rocket Racing) +0.902s