That’s pretty impressive considering the M50 World Record is 22.53 !! I see that you closely followed Kitkat’s 400 program with great success!
I’m not so sure that many others would be able to negative split like you can though as i would imagine the elite ranks of 200m runners at 51yo
would be pretty small (elite according to my Australian charts for masters athletes would refer to that as around sub 25s for 200m).
For my curiosity do you have an accurate time for 60m??