Texas A&M went on the road to Boulder and built a 21-10 halftime lead over Colorado, and led by 10 in the fourth quarter, 31-21, before the Buffaloes came back to edge the Aggies 35-34.
Tyler Hansen passed for 271 yards and Rodney Stewart rushed for 118 yards and 2 TDs to lead the Buffaloes.
Jerrod Johnson passed for 242 yards, Ryan Tannehill caught 9 passes for 100 yards, and Christine Michael rushed for 74 yards for the Aggies.
The Aggies drove to the Colorado 1-yard line on their opening possession before failing to score on a 4th-and-goal.
After forcing a Colorado punt, Jerrod Johnson completed a 29-yard pass to Uzoma Nwachukwu to the Colorado 13-yard line. Four plays later Johnson tossed a 1-yard TD pass to Jeff Fuller. Randy Bullock's extra point gave the Aggies a 7-0 lead with 2:33 left in the first quarter.
Colorado mounted a 14-play, 66-yard drive but had to settle for a 37-yard Aric Goodman field goal to cut the Aggie lead to 7-3 with 12:33 left in the second quarter.
After the Aggies went 3-and-out, Colorado drove 69 yards in 5 plays, with Rodney Stewart scoring on a 13-yard run. Goodman's extra point gave the Buffs a 10-7 lead at the 9:11 mark of the second quarter.
It took the Aggies just 14 seconds to regain the lead as Cyrus Gray returned the kickoff 99 yards for a touchdown to put the Aggies ahead 14-10.
Late in the second quarter Texas A&M drove 56 yards in 10 plays and Jerrod Johnson scored on a 3-yard run with 17 seconds left in the first half to give the Aggies a 21-10 halftime lead.
The Aggies received the second half kickoff and drove to the Colorado 31-yard line but Randy Bullock missed a 48-yard field goal.
Colorado drove to the Aggie 19-yard line and made their field goal from 37 yards to cut the Aggie lead to 21-13 midway through the third quarter.
The Aggies were forced to punt and Colorado mounted a 10-play, 79-yard drive with Rodney Stewart scoring on an 11-yard run. The Buffs went for two and converted when Tyler Hansen connected with Markques Simas to tie the game 21-all with a minute left in the third quarter.
The Aggies quickly drove 85 yards in 8 plays with Christine Michael scoring on an 8-yard run. Bullock's extra poinmmt gave the Aggies a 28-21 lead early in the fourth quarter.
Aggie safety Jordan Pugh intercepted a Tyler Hansen pass and returned it to the Colorado 44-yard line. The Aggies were unable to take full advantage of the turnover and had to settle for a 47-yard Randy Bullock field goal to extend their lead to 31-21 with eleven minutes left in the game.
The Buffs responded by driving 73 yards in 8 plays and Demetrius Sumler scored on a 7-yard run to cut the Aggie lead to 31-28 with 7:14 to go.
The Aggies drove to the Colorado 3-yard line but again had to settle for a Rany Bullock field goal to make the lead six, 34-28, with 3:59 left in the game.
Things were looking pretty good for the Aggies after Von Miller sacked Tyler Hansen for a 10-yard loss. But on a 3rd-and-16, Tyler Hansen connected with Markques Simas for a 45yard pass to the Aggie 22-yard line. on the next play Hansen threw a touchdown pass to Patrick Devenny. Goodman's extra point gave Colorado a 35-34 lead with 2:04 left in the game.
The Aggies picked up one first down but then a Jerrod Johnson pass was intercepted by Anthony Perkins at the Colo 49-yard line.
The Aggies forced a punt but with 34 seconds remaining Terrence Frederick fumbled the punt and Colorado recovered to preserve a 35-34 win over the Aggies.
This is a game the Aggies will know they could have and should have won.
Texas A&M (5-4, 2-3 Big 12) must now regroup before travelling to Norman to face Oklahoma next Saturday night.