[1][2] Westpark Mustard was entered for the 1973 English Greyhound Derby but the race distance was too short for her.

[4] The run was extended to five wins after she won the Longcross Cup at White City Stadium in February.

Trained by Tom Johnston Jr., the bitch won another ten races, including winning the GRA Stakes and setting a track record at Brough Park over 725 yards.

[4] After seasonal rest, her connections entered her for several one-off open races, deciding to avoid the Gold Collar and Cesarewitch.

His trainer, Tom Johnston, had reservations about changing the greyhound routine, which proved true when Westpark Mustard failed to win her next race.