Use an Age Grade calculator to figure it out. Taking a little survey to see which distances have best performances.
Mine rank like this:
1. 1500
2. 3000
3. 5K
followed by HalfM, 10miles, and 10K.
too lazy to use that calculator
1) 1500
2) 400
3) 3k
in order of most impressive:
5k, 3k, 1500
i havent really raced other distances much though..
lol that calculator is retarded. it says a 16:00 5k is national class for a 19 yr old.
Marathon
Half Marathon
1500m
The 3000m and 5000m for some reason, just never worked out for me.
i feel like this is pretty bullshit. especially if youre young. fake aged africans skewing the data