Every km in 5:30 more or less. That’s pretty good.
The 2 or 3 marathons I’ve done always ended with negative splits.
Edit: How did I miss this thread?
I haven’t been tracking anything but I will probably next year, might even do another half/marathon.
My mileage is low this year as I’ve been following a very different protocol.
Look for a book called Unbreakable Runner, by some crossfit guys.
It’s about cross fit endurance, and the theory/practice is time in the gym and then some very structured running.
A typical run workout, like what I did last night, is thus:
Cadence = beats per minute. Every beep your left foot hits the ground.
4 (1 minute run at 100 cadence)
4 minutes at 95 cadence.
Repeat one more time.
Then 10 repetitions of 100m barefoot walking and 100 metres barefoot running.
That’s week 5 of a 6 week rotation, so the initial stuff is much easier.
There’s 2 of those runs in a week, and 3 days of strengthening and conditioning. As I’m not a fan of gyms I’ve been sticking to the calisthenics, and today I am due to do as many rounds as possible of the following in 15 minutes:
5 pullups, 10 pushups, 15 squats, 20 situps/leg raises.
These can be as easy or hard as you like.
The focus of the program is to teach you foot strike, foot turnover, optimal running positions etc, and to build you body strength.
And it works.
I have to do fitness tests for my army reserve work, and one of them is a 2km run. I did that in exactly 10 minutes, after taking time out to tie my shoe laces. I’m 39 fwiw.
As you can see, the total mileage is very low.
As your limit is 3 - 5 km I think this might help you.