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Trying to hit 5km pace...for me that would be about 3minutes, 55seconds per kilometre

For endurance purposes that seems the right way to go to me. But I wuld do 1000's with this purpose.
600's I'd do for a 3000m or 5000m max. and I'd try to do them at a 3000m pace. Just my opinion ;-) !LOL

Yesterday a clown held a door open for me.
I thought it was a nice jester.

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