WERA West at Auto Club Speedway: The 2017 Season Begins, Part 4

More from WERA West at Auto Club Speedway, the 2017 season opener:

David Henderson won the A Superbike Novice race

Keir Leonhardt (above) won the Grom Cup race after a battle with Greg Clouse (below).

Rocco Landers, Mini 80 winner.