Massie Street Intervals

5X200 & 4X200, with one minute between 200s and four minutes between sets, (with the odds uphill and evens down, as will always be the case on Massie St.) in 58.2, 54.6, 56.8, 50.1, 51.7, and 52.3, 46.2, 47.6, 44.4, or an average of 51.4.