1 X 1000m @ 1:44-1:46 pace, felt hard and didn't feel like I could hold that for 2km. 4 X 500m @ 1:39 - 1:41 pace. Finished up with holding steady 2:10-2:12ish at 18-20 s/m, with an couple of random accelerations, including a 1000m finish at 1:55 accelerating to 1:40 by the finish.