DF 104, damper high 3. Second time doing an hour. Pretty good effort with push at the end. Overall 21spm, pace 2:03.2 with splits of 20, 20, 21, 22, 23. Pace got faster every 12 minute split, 05.0, 04.2, 03.7, 02.9, 00.2. Could go a little faster but not much.