start out fast. about the same start for the 400.
then after about the 150 mark. get into a good pace.
just keep movin your arms & legs fast.
when you get to the 300 mark, go a little faster.
just a little. now when you have done your first 400,
& you are about to start your next one
you have to go faster.
about the speed of a 400 meter start.
now when you get your 500 mark,
get into that same pace.
fast arms and legs, going forward.
when you get to the 600 mark,
start to excelerate & by the
time that you are at the last 100
you should be going full speed.