Gauging Speed(400m)

[John]

@QUIKAZHELL

I know this thread isn’t about me but just to update on my “workout correlations” last week I ran 200/200 off of 90" Rest 12’ repeat and I hit 49.0 and 50.7 which averages out to 49.9.
In Boston this past Saturday I PR’d in the 400 running 49.93 running FAT splits of 23.73 and 26.20 for a 2.46 second differential. My 200 was run 2 hours after the 400 and was also a PR at 22.37.

good work, interesting about the 200. Let me guess, no lactate compared to normal?