Champion Raceway in So San Francisco was an 1/8th mile track. I worked there with Steve Evans as my boss. We did both Champion & Fremont tracks. As I recall, keeping in mind this was a while back, it ran during the later part of the '60s and wasn't open very long. Perhaps not more than 2 years, if that. Fun races though and the 'brothers' did some heavy betting on the cars.
One time, we had a match race between Chi-Town & Jungle Jim. Jungle did a fire burnout and caught the wheel wells on fire. To put them out, he went on down to the end of the track, made a u-turn and was coming up in the same lane Pat Minnick was in. Austin Coil is backing Pat up and Pat is frantically trying to signal him that Jungle was coming up behind him. Jungle calmly pasted next to Chi-Town, made another u-turn and staged. The crown went wild!