3,400 Comments The intervals on the main set were for lane one. Adjust them for the intermediate and beginner lanes. Workout WARM UP: 6 x 150 broken 100 free/50 kick on :15 rest interval MAIN SET: Twice through the following entire set - 50 on :40 / 50 on :35 100 on 1:20 / 100 on 1:10 300 on 4:00 / 300 on 3:30 100 easy on 2:00 KICK: Twice through - 2 x 50 on 1:00 1 x 50 swim on 1:00 WARM DOWN: 200 easy