Interval Session intervals 52:46 [5]
Garscube Intervals at the Switchback. Warm up (12:56), 1 x 4 km (with a big hill at the start) in 4:35, 4:27, 4:30, 4:32, warm down (10:37) on a wet and windy evening with just the hardcore runners turning out. Session 52:46.