Eric Thomason and Morgan Aldridge won the first race of the Chainwreck Cyclocross Series on Thursday at Tsalteshi Trails just outside of Soldotna.

In this cyclocross series, racers compete on a 1.5- to 2-mile course that includes obstacles, forcing riders to dismount and mount the bike. The leader does as many laps as possible in 30 minutes, and nobody starts another lap after the leader finishes.

Thomason finished five laps in 33 minutes, 8 seconds, to take the victory, while Brian Beeson was runner-up by doing five laps in 33:46. Aldridge was the first woman, and third overall, by doing five laps in 33:49. The second woman was Melissa Smith, with four laps in 34:11.

The Chainwreck Cyclocross Series continues Thursday at the trailhead for Slikok Trails. Registration starts at 5:45 p.m., while racing begins at 6:15 p.m.

Chainwreck Cyclocross Series 1

Thursday at Tsalteshi Trails

1. Eric Thomason, 5 laps, 33 minutes, 8 seconds; 2. Brian Beeson, 5, 33:46; 3. Morgan Aldridge, 5, 33:49; 4. Tom Kobylarz, 5, 37:22; 5. Jeff Helminiak, 5, 38:45; 6. Jamie Nelson, 5, 39:07; 7. Mark Beeson, 5, 39:48; 8. C.O. Rudstrom, 5, 40:24; 9. Tor Dahl, 5, 40:31; 10. Shane Lopez, 5, 41:01; 11. Nels Dahl, 5, 41:48; 12. Will Morrow, 5, 42:05; 13. Melissa Smith, 4, 34:11; 14. Dan Balmer, 4, 36:21; 15. Cassie Collins, 4, 37:03; 16. Stephanie Lambe, 4, 37:35; 17. Cindy Miller, 4, 40:16; 18. Amy Anderson, 3, 36:11; 19. Jane Adkins, 3, 38:29.