Weekend long runs are back!

Well, long-ish. 13km, which is just under 8 miles, done in glorious drizzle with Lizzie. Perfect running weather! 1h16, 9:24/mile, which is great and makes me even more doubtful about the supposed 10 min miling from last Monday. Today felt leisurely and less effort than that, but was allegedly significantly faster. What's going on here?