Joel Kwiatkowski scored with 23 seconds remaining in overtime to give San Antonio a 4-3 win over Houston at the SBC Center on Thursday night.
The Rampage now trail the fourth-place Aeros by seven points in the West Division.
San Antonio held a two-goal with less than four minutes to play before Brent Burns and Zbynek Michalek scored late in regulation to tie the score.
But Burns took a tripping penalty in the final minute of overtime, setting up Kwiatkowski’s power-play heroics.
Ryan Jardine had a goal and two assists for the Rampage. Pierre-Marc Bouchard and Rickard Wallin chipped in two assists each for the Aeros.
PORTLAND 2, WORCESTER 1
Graham Mink and Tomas Fleischmann scored early and Kirk Daubenspeck finished with 34 saves as Portland edged Worcester, 2-1.
Mink scored on a power play just 2:18 into the game, and Fleischmann got his seventh goal of the year at 4:53.
Trent Whitfield assisted on both goals for the Pirates.
Daubenspeck upped his record to 8-3-1 in 13 AHL appearances this season.
2005 AHL All-Star Dennis Wideman scored the only goal for the IceCats.