Bellator 166 took place Friday, December 2nd in Thackerville, Oklahoma and aired on Spike TV. The main event featured a bantamweight title fight between Joe Warren and Eduardo Dantas.

Main Card (Live on Spike TV, 9:00 PM ET)
-Eduardo Dantas defeated Joe Warren by Majority Decision (47-47, 49-44, 48-46)
-A.J. McKee defeated Ray Wood by Unanimous Decision (29-27, 30-25, 30-27)

-Marcos Galvao defeated L.C. Davis by Split Decision (29-28, 28-29, 29-28)

-Chris Honeycutt defeated Ben Reiter via Unanimous Decision (30-26, 30-25, 30-25)

Preliminary Card (Live on Spike.com, 7:00 PM ET)

-Derrick Adkins defeated Chris Jones by Submission (D’arce choke, Round 2, 4:09)

-Gregory Babene defeated Emiliano Sordi by Submission (Guillotine, Round 1, 3:11)

-Kinny Spotwood defeated John King by Unanimous Decision (29-28, 30-27, 30-27)

-Treston Thomison defeated Dawond Pickney by Submission (Arm bar, Round 1, 0:51)