I have all of my old logs where I logged mileage, how it felt, workout, etc. including my weight every day, so actually pretty easy for me to find exact weight.
6'0"
400- 47.8 split 155 lbs
800- 1:50.1 with a negative split 152 lbs, 1:49.8 with normal positive splits 156 lbs
1000: 2:23 153 lbs
1500: 3:44 153 lbs
5k road: 14:43 149 lbs
8k XC: 24:41 149 lbs