Connor Black of Mundelien High School in suburban Chicago swam a 46.71 to become the fastest public school swimmer in high school history on Saturday. Black is a high school senior who will be headed to Stanford next year.

Thanks to Karl Ortegon, a junior swimmer at Evanston Township High School, for taking this video, and for keeping up with live Tweeting from what ended up being a really fast meet all weekend. Follow Karl Ortegon on Twitter here!

Black is obviously strong, but the smoothness of his stroke is really impressive. Also, check out Andrew Jovanovic, who is headed to Northwestern next year, in the lane below him that pushes him through the first 75 yards. Jovanovic was 2nd in 48.11 in this race.