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RE: Speed Endurance Intervals..again: 15x400 r75" (My first #runforsteem post )
+/- 2 seconds for all bar one split! Nice work. Do you use any function on your watch to control pace or are you just running by feel?
:-)
No, just the 100m marks on the track and the chrono...
20" at 100m
40" at 200m
60" at 300m
1'20" at 400m
There is nothing more accurate than the running track