Round 3 was longer than 13 weeks. You have the round ending on the 02/04 but that was the date of the battle at Sid's according to Scouse's site, it went on another 2 weeks after that I think. Also Round 2 didn't start that early, Round 1 didn't end until early July but from what I remember they rolled into one another pretty much.
Scouse's site is cool