I did a ride today with a buddy of mine. He was going to a football match so i agreed to ride there with him, wait and ride back again. So we departed mine and cycled directly there, 23 miles (in 1hr 2 mins!) which virtually killed me but still. While i was sitting waiting for him i nearly froze to death so i did a really leisurely ride of 5 miles to keep warm at about 13 or so mph, then i got back feeling warmer and sat down for 30 mins. Then rode 23 miles home at a more leisurely pace - an average of 17.8mph. So my question is, in total this is 51 miles but can i count it as a half century ride? I've never clocked up a half century in a day before so it's more of a big deal to me than someone who does distances like this regularly and wouldn't care whether or not it counted.

cheers

Jon