2 0 0 6 ▁and ▁March ▁ 1 , ▁ 2 0 1 0 ▁with ▁Che ech ▁& ▁Ch ong ▁appearing ▁as ▁the ▁evening ' s ▁guest ▁hosts . ▁During ▁the ▁show ▁on ▁September ▁ 2 5 , ▁ 2 0 0 6 , ▁the ▁opening ▁of ▁the ▁show ▁suffered ▁a ▁black out , ▁but ▁lights ▁were ▁restored ▁shortly ▁after ▁the ▁night ▁began . ▁ ▁On ▁September   1 6 , ▁ 2 0 0 9 , ▁the ▁Ult imate ▁Fight ing ▁Championship ▁returned ▁to ▁Oklahoma ▁for ▁the ▁first ▁time ▁since ▁U FC ▁ 4 , ▁which ▁was ▁at ▁the ▁Ex po ▁Square ▁Pav il ion ▁in ▁Tul sa ▁on ▁December   1 6 , ▁ 1 9 9 4 . ▁A ▁mixed ▁mart ial ▁arts ▁event ▁returned ▁to ▁the ▁ar ena ▁on ▁January   1 2 , ▁ 2 0 1 3 ▁with ▁the ▁St rike force : ▁Champions ▁event . ▁ ▁Other ▁events ▁The ▁P BR ▁has ▁held ▁an ▁event ▁at ▁the ▁Ch es ape ake ▁Energy ▁Arena ▁ann ually ▁since ▁ 2 0 0 2 . ▁Its ▁premier ▁b ull ▁r iding ▁tour , ▁the ▁Bu ilt ▁Ford ▁T ough ▁Series ▁( known ▁as ▁the ▁Bud ▁Light ▁Cup ▁until ▁ 2 0 0 2 ), ▁has ▁occupied ▁the ▁Ch es ape ake ▁Energy ▁Arena ▁from ▁ 2 0 0 2 – 2 0 0 6 ▁and ▁again ▁in ▁ 2 0 0 9 ▁and ▁each ▁year ▁since . ▁In ▁ 2 0 0 7 ▁and ▁ 2 0 0 8