The 2021 OR Bric Superbike series begins this weekend at Chang International Circuit in Buri Ram.
Circuit managing director Tanaisiri Chanwittayarom said this year's championships should be more exciting because many events overseas have been cancelled due to the Covid-19 pandemic so a lot of leading Thai riders have opted to compete in domestic tournaments.
The competitors include last year's 1,000cc Superbike champion Apiwat Wongtananon and his Yamaha teammate Anuparb Samoon, and Thitipong Warokorn from Kawasaki.
In the Supersport 600cc event, there are many racers who will vie for the title, including Yamaha's Rattapong Wilairoj and Anucha Nakcharoensri, and Honda riders Muklada Sarapuech, Pasawit Thitiwararak and Sitisak Onnchawieng.
Both Yamaha and Honda have vowed to sweep titles in all categories this year.
Muklada said she was well-prepared and ready to chase glory in the 600cc category.
"It will be my first time in the 600cc class and I am ready to stand on the podium in every race," said the female rider.
There are also smaller classes like the Supersport 400cc with Worapong Malahual of Yamaha and Jirayu Saiyont of Kawasaki among title contenders.
Tanaisiri said a limited number of spectators will be allowed at the venue to be in line with the government's Covid-19 protocols.
For this weekend, the first training sessions are scheduled for today, with qualifying rounds taking place tomorrow and final races on Sunday.
TrueSport HD3 (668) will show live the event from 3pm-6pm every day.
Additionally, fans can watch it on facebook.com/changcircuitofficial and youtube.com/user/bricchannel from 9am.