20th

For Time:

10 Dumbbell squats
50 Dumbbell walking lunges (50 total, 25 each leg)
20 DB squats
40 DB walking lunges
30 DB squats
30 DB walking lunges
40 DB squats
20 DB walking lunges
50 DB squats
10 DB walking lunges

Use the same dumbbells for both exercises. Rest on shoulders for squats, hanging at the sides for lunges.