https://trackandfieldnews.com/johnnie-blockburger-emerges-as-400-find-of-the-year/johnnie-blockburger-05-21/
Johnnie Blockburger 05 21 - Track & Field News
Apr 23, 2021 - Just a 48.02 performer as an 11th-grader 2 years ago, Johnnie Blockburger is now a 44.71 guy. (SIMON ASHER/ARIZONA ATHLETICS)
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