CFI 20/30's - Naptown Roller Derby -- Saturday, May 18, 5:00 pm - Indiana Convention Center, Exhibit Hall H, Indianapolis. - Bout #6: – Indiana Convention Center Sirens and Belles vs Arch Rival Roller Girls. This appears to be the last bout of the Season, which is always a big to-do, so come join us for some bone crushing derby action and maybe the after-party too! Tickets sold at the door beginning at 5pm on bout day: General: $17, Kids 2 and under: Free, Kids 3-12: $10, Military: $8 (limit 2 per ID), Students w/ ID: $12 (limit 1 per ID). All bouts are general admission. Seats are on a first come first serve basis. Serra Head is the contact for this event. 20/30's events are open to all age groups.