Met with Curtis, Christian and Colin in Tung Chung. They could have warned me they were going to go at a clip, but I guess I should expect no less when running with fast guys. I was supposed to do 23-26k with last 3k at HM pace. After a couple of k slow (5:13/k), then 10 more k moderate (4:37k), I was left in the dust as we circled the airport. I didn't want to get too far left behind, and could mostly see them ahead, and did 5k in 4:23 pace (7:03/mi pace), which was really me going 4:16 for 4k then slowing down, then did another 5k in 4:40 pace, and had to go to the bathroom so bad I felt sick and couldn't even think in that 5k. Hadn't had any fuel to this point. Enjoyed a toilet break and ate a third of a power bar, then went on. Went 4:40 for another 2.5k, then needed to do my final HM push. Felt like I had already spent what I had in the fast 5k, many k's ago. I have also been a bit sick and got horrible sleep last night so was feeling like if I skipped this HM bit I was covered in the excuse arena :D I decided to attempt it, and goal was 3:50 pace. We had 1.5 k on a nice trail, and was 3:47 pace for that it, but then we were in the city, and had to cross many roads, decide where to turn, did a u turn, so the overall pace of the 3k slowed to 4:00/k. I'll need to plan this out a bit better next time. Overall a solid run. 4:38 ave pace overall. Left leg was sore in the afternoon/evening. Felt like a deep ache in my calf, was actually limpy :( | 