An estimated 300 to 400 persons marched in the third annual John’s March Against Stomach Cancer at Sonoma Raceway on Saturday.

The march is held in honor of John Cardinale, the track’s longtime vice president of Media and Community Relations, who passed away last year after a two-year battle with stomach cancer. The march has raised nearly $29,000 in its first two years. This year’s totals weren’t available as of presstime on Monday.