Student butterfly

10 mins 2 secs

5 mins 27 secs

12 mins 18 secs

1 min 58 secs

1 min 59 secs

5 mins 4 secs

1 min

21 mins 34 secs

5 mins 40 secs

11 mins 51 secs

8 mins 34 secs

29 secs

4 mins 25 secs

10 mins 14 secs

17 mins 34 secs

1 min 1 sec

3 mins 31 secs

6 mins 49 secs

7 mins 17 secs

30 secs

1 min

24 secs

58 secs

1 min 23 secs

1 min 43 secs

3 mins 31 secs

48 secs

9 mins 22 secs

1 min 1 sec

3 mins 1 sec

1 min 18 secs

18 mins 28 secs

4 mins 50 secs

5 mins

55 secs

37 secs

7 mins 16 secs

5 mins

11 mins 16 secs

10 mins 4 secs