CREATE TABLE table_23465864_4 (sat_29_aug VARCHAR2, tues_25_aug VARCHAR2)

What time was achieved on Saturday 29th August by the rider who recorded 23' 18.82 97.102mph on Tuesday 25th August?
SELECT sat_29_aug FROM table_23465864_4 WHERE tues_25_aug = "23' 18.82 97.102mph"
SELECT "sat_29_aug" FROM "table_23465864_4" WHERE "23' 18.82 97.102mph" = "tues_25_aug"