Rundown

etymonline

ref

rundown (n.)

by 1908 in baseball, "the action of defenders attempting to tag out a runner caught between bases," from the verbal phrase; see run (v.) + down (adv.). To run down in hunting as "to chase until caught or killed" is by 1660s.

The meaning "list of entries in a horse race and the odds" is from 1935; hence the generalized slang sense of "summary, account, list of information or facts," attested from 1945. Compare run-down (adj.).