[racket] regexp-match* that returns clusters?

Is there some equivalent of regexp-match* that returns a list of all
the (non-overlapping) matches in a string.

I want something like:

> (regexp-match*-clusters #px"(?:^|\\s+)([A-Z])" "This gets Initial CAPS, I hope")
'(("T" "T") (" I" "I") (" C" "C") (" I" "I"))

Any luck?

Thanks!
Todd