Watson was competing at the relatively low-key Section 5 vs. Section 6 Invite in Houghton, New York. She won her race by nine seconds.

. Her New York rival Kamryn McIntosh had the old prep standard at 1:28.78, set two years ago.

I'm pretty sure I just witnessed the fastest High School Girls 600 EVER by Sammy Watson @milesplit @MileSplitNY @Sam_wats17 pic.twitter.com/IRWznEvaVu

It was announced earlier this month that Watson and McIntosh are

in the 600 meters in two weeks at the Armory Track Invitational.