With about 9 minutes left in Iowa State's game with TCU, Georges Niang of the Cyclones caught teammate Melvin Ejim looking up at the giant scoreboard that hangs over the center of the court. Ejim scored a Big 12-record 48 points, making 20 of 24 shots, and grabbed a career-high 18 rebounds to lead No. 16 Iowa State past TCU 84-69 on Saturday, keeping the Horned Frogs winless in the conference. Ejim had two 3-pointers and six dunks during his big game, one on a spectacular fast-break lob from DeAndre Kane that gave the Cyclones (18-4, 6-4 Big 12) a 67-52 lead and effectively put the game out of reach. A 6-foot-6 senior, Ejim scored 20 straight Iowa State points during one stretch in the second half and easily notched his 30th career double-double. He padded his lead in the Big 12 scoring race with a performance that topped the previous conference record of 44 points by Kansas State's Denis Clemente in 2009 and the Wildcats' Michael Beasley in 2008. His previous high had been 23 points against Oklahoma last season. Iowa State's school record is 54 by Lafester Rhodes in an overtime victory over Iowa in 1987. Iowa State coach Fred Hoiberg, who once scored 41 in a game for the Cyclones, said Ejim's record is all the more impressive considering it came in a league that has produced the likes of Kevin Durant and Blake Griffin.