LARAMIE, Wyo. -- The night before hosting San Diego State, Wyoming coach Larry Shyatt took his team back to earlier this season when the Cowboys beat then No. 19 Colorado at home.
"I showed them the end of the Colorado celebration ... and I just said, 'Look why not us,' " he said.
The Cowboys (15-2, 2-2 Mountain West) have defeated nine of the last 14 Top 25 teams to visit Arena-Auditorium. They are 5-1 at home against ranked teams under Shyatt.
SDSU (14-4, 2-2) lost its second game in a row, the first time this season the Aztecs have lost back-to-back games. SDSU fell to UNLV on Wednesday.
Jamaal Franklin led SDSU with 13 points -- 5 points below his season average.
The Aztecs, who entered the game averaging 72 points, struggled from the field Saturday night. They hit just 29 percent (17-of-59), making just 2-of-18 3-point attempts. The 45 total points was the lowest of the season, second only to the 49 SDSU scored in its first game of the season -- a loss to Syracuse on an outdoor court.
Aztecs coach Steve Fisher, who declined to make any of his players available to the media after the game, said his team seemed to lack the intensity that Wyoming exhibited from the start.
"I didn't feel an excitement and an energy in the locker room that you have to have," Fisher said. "It didn't appear that we had an edge about us that was conveyed just by a look and a feel and a squirming in your seat. ... They had that. I could sense that from the opening tip, and we didn't."
SDSU scored just nine points in the first half on four field goals and a free throw. It was its lowest point total for a half this season.
However, Wyoming wasn't much better in the first half, keeping San Diego State in the game with its own shooting woes -- making just 8 of 25 shots -- for a 20-9 halftime lead.
"We just tried to hold them to some tough shots," Washington, who now has eight double-doubles on the season, said. "A couple more shots dropped for us than they did for San Diego State tonight."
Both Washington and Nance scored just two points each in the first half.
At halftime, Shyatt talked to his team about getting the ball inside to Washington and Nance more often. Washington responded with 12 second-half points, and Nance 9.
Both teams improved their shooting in the second half, but SDSU was never able to mount a serious challenge, getting no closer than 42-35 with 3:57 left in the game.
Wyoming ended the game shooting 43 percent from the floor (18-42) and made 4 of 16 3-pointers.
SDSU played without starting guard Xavier Thames, who sat out the game because of a recurring back injury.
Winston Shepard, a highly recruited 6-foot-8 freshman from Houston, made his second start in replacing Thames and finished with 10 points.
Maryland point guard Melo Trimble, considered a lock to leave the program before struggling in the second half last season, has withdrawn from the NBA draft and will return for his junior season.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.