Marc Belanger scored three goals but the Thunder lost its 10th straight, falling 5-4 on Saturday night at Rapid City, S.D.
Wichita fell behind 4-1 after two periods as Rapid City scored three power-play goals.
The Thunder made it 4-3 as Belanger scored twice in 36 seconds in the third period, but never got the tying goal.
Jim Jorgensen scored Wichita's final goal.
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Wichita1 0 3—4 Rapid City2 2 1—5
First Period—1, Rapid City, Wray (Hodge, Flamminio), 3:23. 2, Rapid City, Cook (Wray, Reaney), 10:12 (pp). 3, Wichita, Belanger (Truelson), 14:31. Penalties— Bodine, RC (fighting major) :05; McAllister, Wich (fighting major) :05; VanderVeeken, RC (hooking) 6:20; Bruce, Wich (delay of game) 6:51; Ofukany, Wich (unsportsmanlike conduct) 8:36; Ustrnul, RC (tripping) 10:59; Wray, RC (roughing) 19:18; Ofukany, Wich (roughing) 19:18.
Second Period—4, Rapid City, LeBlanc (Pelle, Hodge), 7:15 (pp). 5, Rapid City, Reaney (Fritshaw, Holdge), 19:51 (pp). Penalties— Jarvis, RC (hooking) 2:19; Woll, Wich (slashing) 6:48; Ustrnul, RC (interference) 7:38; Reaney, RC (delay bench minor) 9:12; Bruce, Wich (spearing double minor) 9:25; Ustrnul, RC (interference) 9:49; Flamminio, RC (interference) 17:34; Kovalcik, Wich (interference) 19:33.
Third Period—6, Wichita, Belanger (Deleurme, Detulleo), 6:05. 7, Wichita, Belanger (Deleurme), 6:41. 8, Rapid City, Hodge (LeBlanc, Grimson), 10:28 (pp). 9, Wichita, Jorgensen (Ottmann), 14:19. Penalties— Pelle, RC (goalie interference) :29; Ottmann, Wich (hooking) 10:15; Duda, Wich (abuse of officials game misconduct) 20:00.
Shots on Goal—Wichita 12-10-8—30. Rapid City 9-13-10—32.
Power-play opportunities—Wichita 0 of 9; Rapid City 4 of 6.
Goalies—Wichita, Horrell (32 shots-27 saves). Rapid City, Beaudry (30-26).
Referees—John McIsaac. Linesmen—John Grandt, Jason Griffis.