Amric Fields scored eight consecutive points for TCU in a 48-second span during the tiebreaking run and the Horned Frogs upset another ranked team at home, beating No. 18 New Mexico 83-64 on Saturday night.
TCU (17-11, 7-5 Mountain West Conference) has won eight consecutive home games, the last two over Top 25 teams.
In their previous home game 11 days earlier, the Horned Frogs beat then-No. 11 UNLV 102-97 in overtime. That was their first win over a ranked team in five years.
New Mexico (22-6, 8-4) has lost both games since a seven-game winning streak that had pushed it to the top of the Mountain West standings and into the latest Top 25 poll.
Connell Crossland's one-handed slam dunk over a defender, his only basket of the game, broke the eighth and last tie. That put TCU ahead 50-48 with 13:26 left and started a 10-0 run in which Fields scored the rest of the points.
TCU now has consecutive victories over ranked opponents for only the second time in school history. The other time was 14 years ago.
J.R. Cadot had 15 points and 10 rebounds for TCU, leading six players in double-figure scoring.
Hank Thorns added 14 points, while Garlon Green had 13, Craig Williams 12, Fields 11 and Kyan Anderson 10.
A.J. Hardeman scored 15 points for the Lobos, and Kendall Williams 10. Drew Gordon grabbed 12 rebounds.
Fields made a free throw with 11 1/2 minutes left. He missed his second attempt, but the Frogs got the rebound and he hit a 3-pointer from the left corner. He added two free throws and a steal for a breakaway layup that made it 58-48 with 10:42 left.
Hugh Greenwood ended the TCU spurt with a 3-pointer, but the Lobos never got closer.
New Mexico had overcome a horrendous start at the outset of the game, but never recovered in the second half.
The Lobos had seven turnovers, three of them traveling calls, in the first 5 1/2 minutes. TCU jumped out to a 13-4 lead.
Adrick McKinney had consecutive highlight baskets for TCU, his only two field goals of the game. He made a hook shot while falling down and then a short floater while being fouled. He pumped his fist and made the free throw for an 18-13 lead.
But the Frogs suddenly started turning the ball over, on four consecutive possessions and a fifth time in a 3-minute span after none in the first 10 minutes. That allowed the Lobos to tie the game and then go ahead for the first time.
Williams hit a long jumper from the left wing to tie the game 18-all with just under 9 minutes left in the first half.
Jamal Fenton slung a pass through the defense to a wide-open Hardeman for a dunk for New Mexico's first lead, 21-20, at the 7:40 mark. Gordon then had a breakaway dunk after Fields missed a 3-pointer.
The game was tied 38-all at halftime. Greenwood grabbed a blocked shot out of the air and put it right back in before the buzzer.