Notes
This run started out rough. I was breathing heavily for most of the run, due to the humidity and possibly the air quality. I felt better after about 3.5 km; this has been the norm lately.
Splits: out, 20:55; back, 21:13 (includes 18 sec of stopped time).
Temp 29C, dew point 21C.
Pulse/resp at finish: 150/28.