She is 'racing against the clock' to be sure the assignment is handed in on time.
Her mind was 'racing'. [=she had many thoughts going quickly through her mind]
Researchers are 'racing (against time)' to find a cure.
(..) - Would a coward have this? - What the hell is that? These are my awards, Mother, from army. The seal is for marksmanship... and the gorilla is for sand racing. - You're doing well? - I was just dropping these off. Now, if you'll excuse me, they're putting me in something called Hero Squad. (..)2004 TvShow: Arrested Development Title: Afternoon Delight Season: 2 Episode 6