give someone or something a run for their money

give (one) a run for (one's) money

To challenge one's ability, fortitude, or patience. Don't underestimate our opponents today—I think they'll give us a run for our money. Having an infant and a toddler sure is giving me a run for my money.
See also: for, give, money, run
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

give someone or something a (good) run for their money

provide someone or something with challenging competition or opposition.
1997 Rugby World Beaten Welsh Cup finalists Swansea gave them a good run for their money for much of the campaign before fading away.
Farlex Partner Idioms Dictionary © Farlex 2017
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