Cycling 37:00 [3] 14.0 km (2:39 / km)
Coming back, via a slightly different route (trying to avoid as much of Plenty Road as I could after the earlier experience, although there are parts which are difficult to avoid without a long detour as Bundoora has no other reasonably continuous north-south streets). Net downhill but also net headwind, which roughly seemed to cancel out.
The Garmin obviously didn't think I was trying because it thinks my recovery time is 0 hours. Calf gave no trouble either on the ride or afterwards.