Following on the coattails of the previous 30-second drills (see CR December 2012), this set of exercises uses three tunnels but eight jumps as shown in Figure 1. For those of you who are new to 30-second drills, the purpose is to finish a jump to tunnel sequence eight times in 30 seconds or less. There is a time constraint so that the handler has a sense of urgency to finish quickly rather than to slow things down to just to get the sequence correct. Rising Stars Class Challenges for By Stuart Mah 1 2 3 7 1 a 2 4 c c b 5 6 8 16 b e d a e 9 d 12 14 f 10 15 13 52 f 11 Clean Run | August 13