Running long (Byford hills) 1:46:23 [3] 16.61 km (6:24 / km) +294m5:53 / km shoes: Hoka Stinson ATR No.1
I was going to do 20km, but it wasn't very cool by the time I started. I was really struggling heading up the hill and I started to get a headache near the top, so headed back.