Angel Heredia's 38.14 300 hurdles went to the top of the 5A rankings.
Pomona's Semaye Johnson moved the top 100 hurdles mark of the season down to 14.51.
The Mullen Invitational is LIVE on MileSplit on Saturday
Will Adam Stark still be the state's leader when the final heat of the Mullen 400 is complete?
Nolan Kembel is the top returning finisher from last year's Mullen 300 meter hurdles, but he has his work cut out for him this year.
Is Denver East sophomore Arria going to have a breakthrough sophomore season outdoors?
Arria Minor is among the top expected athletes at Saturday's running of the Mullen Invitational.