Running 21:34  5.0 km (4:19 / km)
Was worried it might have been flooded out, but was all good. Luckily, as I'd probably not left myself enough time to get to Parkville. Already a fair bit of water in the Merri.
Saw at the turnaround that the 2nd female was just cruising so tried to push on the way back in case she was going to sneak past at the last minute. Pushed the last k fairly hard.