Evolution of Katsumi Yamamoto (Race comparison with teammates)
- Results are based on when Katsumi Yamamoto and teammate finish the race. (Ordered by date)
- +1 point for Katsumi Yamamoto for winning, -1 point for losses against teammate.
Evolution of Katsumi Yamamoto (Qualifying comparison with teammates)
- Results are based on when Katsumi Yamamoto and teammate have no technical problems in qualifying. (Ordered by date)
- +1 point for Katsumi Yamamoto for winning, -1 point for losses against teammate.