4 x 1.11 miles, 2 min rest in:
5:47 (5:13/mile)
5:43 (5:09)
5:43 (5:09)
5:52 (5:17)
Done on a relatively flat road loop. Could have pushed a bit harder on the final one but didn't want to race the workout too much. This was in the middle of an 11 hour training week, but I've been at this volume for a while so I'm used to it.