running intervals 54:42 [5] 12.0 km (4:34 / km) +150m 4:17 / km
shoes: StreetLite Sandals
4km warm up 19:32
4 x 500m hill Boshoff tempo up fast down 60sec rest
2:04 1:59 1:59 1:58
1:49 1:48 1:46 1:46
up a touch faster, down a little slower
stopped at 4 as body not 100%,
4km back 19:57