Running (road/xc) 29:55  6.1 km (4:54 / km)
First 6km or so of my medium trail route. Didn't pace it very well and developed a stitch, tried to breathe it off but on a long downhill it finally got me proper. Maybe I have a new type of bottleneck now in oxygen efficiency, that would be quite cool. It makes sense, I've worked a lot on aerobic/muscle fitness and very recently some running at threshold but my anaerobic fitness, separately, is probably quite poor. A bit too late to head down to the track or do some hill sprints to make any difference for my 5km run on Wednesday!
On the positive side I did manage to run 5sec/km faster than PB pace over the first 4km so I'm definitely close to where I was. Just got to stay focused and be patient.
Running (road/xc) 31:35  4.7 km (6:43 / km)
Gave the stitch a few minutes then jogged the rest of the route.
Just realised that I have in 2017 already run more hours than in 2016. Difference.