Did 5 X 500m.

1:46.2 / 29
1:46.3 / 28
1:46.5 / 29
1:45.7 / 31
1:46.0 / 30

1:46.1 Avg / 29

Went "balls to the wall" on the last one and held around a 1:37 or so for the first 250m but died the last 250m and ended up really with a slower time.