Grant Reynolds who is 8 or younger, ran 2:28.59 for 800. Brandon Leacock (Rolesville, North Carolina) ran 2:18.51 in the boys 9-10 division.
http://www.usatf.org/News/Five-national-age-group-records-set-on-Day-6-of-US.aspxUSATF wrote:
In the 8 & Under race, Grant Reynolds (Conyers, Georgia; USATF Georgia) went out hard and never looked back after passing through 400m three seconds ahead of the field. Reynolds eclipsed the previous record of 2:29.55, running 2:28.59 for a new JO and national record.