CREATE TABLE table_22648285_1 (race_time VARCHAR2, driver VARCHAR2, average_speed__mph_ VARCHAR2)

How many races did Cale Yarborough win at an average speed of 88.924 mph?
SELECT COUNT(race_time) FROM table_22648285_1 WHERE driver = "Cale Yarborough" AND average_speed__mph_ = "88.924"
SELECT COUNT("race_time") FROM "table_22648285_1" WHERE "88.924" = "average_speed__mph_" AND "Cale Yarborough" = "driver"