Running sets at Lunken Airport

Onces or twice a week we use to run at Lunken Airport if the weather allow us to survive during winter. Perfect place to run short or long sets in a 8.5 km loop.
Last night time to play with Matt the new sets for this mesocycle 15x2 mins with incomplete recovery of 1 min at 3:30/km pace.
Good job this night! Now time to rest and recover for tomorrow!