The third race in the series happens on Oct. 30. Watch for ghosts, goblins and any number of strange characters. The 6-mile course loops through Ute Valley Park, covering some of the most technical terrain in the series. 

The series ends on Oct. 30, with a 7-miler set for Nov. 13 in Palmer Park.

Registration for the series is $45 for Pikes Peak Road Runners members and military personnel, $60 for non members. Single race registration is $12 and $16.

Click here to register online.

Runners can download entry forms at  http://pprrun.org/events/FallSeries/main_adult.htm.

Walk-in entry is available at the Boulder Running Company, 3659 Austin Bluffs Parkway; the Colorado Running Company, 833 N. Tejon; and Runners Rost, 121 N. Tejon.