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It means that he was very good at something and "we" had problems matching him.
I am reading a comic book and I came across again with "run for my money". Take a look at below.
It's almost too easy! I've run out of enemies who can give me any real opposition! I'm too powerful for any foe! I almost wish for an opponent who'd give me a run for my money!
I was wondering if I may say that "run for my money"= challenge.
a run for our money 
Re: a run for our money 
Linear Mode
