The outdoor world best is 30.85 by Michael Johnson.
The indoor world best is 31.88 by Wallace Spearmon Jr. The National High School Record for the 300m is 32.27 set in 1974 by Scott Ruvolo from Saddleback High School in Santa Ana California at the Los Angeles Indoor Times. The women's record is 35.30 seconds, set by Ana Guevara in Mexico City.
The world record for mens 100m sprint is 9.58s by Usain Bolt (JAM) in 2009 in Berlin.
Wilson Kipketer of Denmark holds seven of the ten fastest 800m times in history, including his world record of 1.41.11 from 1997.
Michael Johnson: 43.18 seconds.