Watch Semira Killebrew drop a 23.95 second 200m effort at AAU Club Nationals in Florida
Mu squeaks in ahead of Olivia Baker's 52.46 and is only behind Sydney McLaughlin's 51.87.
The final day of the AAU Club National Championships was full of records and elite performances
The sixth day of competition at the AAU Club Championships was a day full of promising semifinal performances
Check out the preliminary runs of Tyrese Cooper and Taylor Banks at AAU Club Nationals
Miami Gardens Xpress' Cha'iel Johnson ripped through a majorly fast 800m at AAU Club Nationals
By Denise Spann - MileSplit Correspondent- - - Cha'iel Johnson is continuing her middle-distance reign. Johnson added another record to her collection by qualifying for Saturday's final of the 13-year-old girls 800m. She broke Miami's own Daesha Rodgers' record of 2:12.65 by running 2:12.27.
By Denise Spann - MileSplit Correspondent - - - Destyni Devine of Olympia Track Club (FL) ran a convincing 27.85 in heat 9 to take the record. This is Devine's third club championship record in two days, and the semifinals of both the 100m and 200m are still to come.
Watch the 2018 AAU Club Nationals from Lake Buena Vista, FL LIVE on FloTrack.
Denise Spann recaps all of the highlights from day three of the AAU Club Championships.
We recap the first two days of the AAU National Club Championships.
Get ready for an epic event this week in Orlando, Florida.
We breakdown the rankings for every age group from six and under to 17-18.
See where you stack up against your peers.
Check out entries for this Monday's AAU National Club Championships, which is LIVE on FloTrack