Preliminary information indicates that both aircraft had just competed in the T-6 Class - Gold Race at the National Championship Air Races at Reno-Stead Airport, and they were on base to final to runway 08. The Six-Cat ran into the tail of Baron’s Revenge, severing the tail, causing it to go straight for the ground. The Six-Cat flew for a bit but it eventually nosed over and crashed. Both planes crashed in a residential area west of the airport. A ground observer was able to photograph the Baron Revenge before it impacted the ground, it was missing the entire tail and had sustained substantial damage to the outer section (and trailing edge) of the left wing.
https://aviation-safety.net/wikibase/345650