Sentence:  George Kerr , the swift striding Jamaican , set a meet <WSD>record</WSD> in the 600 - yard run in the Knights of Columbus track meet tonight , beating Purdue 's Dave Mills in a hot duel in 1.10.1 . 
Meaning of the word marked with <WSD> tags:  an extreme attainment; the best (or worst) performance ever attested (as in a sport)