Lots of speed, not enough endurance

I finished the Tervuren 16k, a hilly run in the forest, in just under 1:30 (my target was 1:32). Average per kilometer is 5:38, against 5:57 during the Paris half marathon two weeks ago. So that's a major jump.

It could have been even majorer. After 10k I was at 52:15. That speed would have taken me to a time of about 1:23:30. But I could not keep going. A steep climb, followed by a steeper climb, killed my pace and after 11k I had to walk bits.

So what do I learn from this? That I am not back yet to the shape I was in three years ago, in my marathon year. That I need to train for mileage, before looking at speed again. And that I started too optimistically, maybe.

But then, the weather was great (my first short-sleeves run of the season!), the forest was magnificent, the roads and paths, mostly unpaved, were grand, and the crowd was superb (race volunteers, runners and spectators). I should be forgiven for getting carried away - before dropping like a brick.

Next up: the 12k in Kortenberg on Easter Monday. Aim: under one hour.