Back to JK's intervals session today. I felt pretty relaxed going into this, forgetting how hard it is. Got there early and did a 10 minute warm up, then a bit of stretching with Jo as we waited for the session to begin. JK had a fun one in store for us - 1200m with 1 minute rest, then 400m at a tougher pace, then a 3 minute rest, then do it all again another two times. That was a total of 4.8km and an incredibly tough session, but great to be back in the groove. I was pleased that my 1200s got a bit faster each time, though the 400m seemed to slip a bit, which is disappointing. I guess it means I'm better over distance, which is hardly surprising.