Dineen broke a 2-2 tie by scoring an unassisted shorthanded goal at 5 minutes, 45 seconds of the third period. He added an empty-netter with one second left in the game.

The Stampede (28-17-6) took a 2-0 lead on goals by Robbie Vrolyk and Jake Hansen in the first period.

Tri-City (21-29-2) answered back in the second. Josh Berge scored at 9:23 and Mario Lamoureux tied it up off an Alex Hudson assist at 11:03.

Eric Hartzell made 24 saves for Sioux Falls. Aaron Rock had 29 stops for the Storm, who host Des Moines in a 3:05 p.m. matinee game today.

Thanks to Sioux City's 3-0 loss to Cedar Rapids, Tri-City remained mathematically alive for the Clark Cup Playoffs. One more regulation loss or one Sioux City would end that chance.

Sioux Falls 2 0 2 4

Tri-City 0 2 0 2

First period1, Sioux Falls, Vrolyk 14 (Connolly), 7:01; 2, Sioux Falls, Hansen 30 (Springer, Connolly), 13:09 (pp). PenaltiesGrover, Soiux Falls (interference), 6:07; Thocker, Tri-City (holding), 11:29; P. Lamoureux, Tri-City (checking from behind), 11:54; Dineen, Sioux Falls (hooking), 12:38; Cooper, Tri-City (tripping), 13:56.

Second period3, Tri-City, Berge 5 (Hagemeijer, Cooper), 9:23; 4, Tri-City, M. Lamoureux 8 (Hudson), 11:03. PenaltiesSpringer, Sioux Falls (holding), 3:45; Accentura, Sioux Falls (roughing), 7:10; Craig, Tri-City (roughing), 7:10; Martell, Tri-City (interference), 14:29; P. Lamoureux, Tri-City, minor-misconduct (cross checking-unsportsmanlike conduct), 14:40.

Third period5, Sioux Falls, Dineen 23, 5:45 (sh); 6, Sioux Falls, Dineen 24, 19:59 (en). PenaltiesPower, Tri-City (interference), 0:17; Reinthaler, Sioux Falls (cross checking), 0:17; Hagemeijjer, Tri-City (tripping), 2:31; Rohrkemper, Sioux Falls (holding), 5:04; Hartzell, Sioux Falls (delay of game), 5:50.

Shots-on-goalSioux Falls 8-11-1433, Tri-City 6-14-626.

Power-play opportunitiesSioux Falls 1 for 6, Tri-City 0 for 5.

GoaltendersSioux Falls, Hartzell 14-8-2 (26 shots-24 saves). Tri-City, Rock 11-18-2 (32-29).

Attendance2,209.

RefereeNick Krebsbach. LinesmenBilly McGoldrick.