Stepping in for injured wide receiver Roy Williams, Austin caught 10 passes for a franchise-record 250 yards and scored the winning touchdown in overtime of the Cowboys' 26-20 victory Sunday over the winless Kansas City Chiefs.

In dooming the Chiefs to their 28th loss in 30 games, Austin erased the record of 246 yards that Hall of Famer "Bullet" Bob Hayes set against Washington almost 39 years ago.

"It's a feeling that's unbelievable," he said. "It's amazing. I never seen that coming today. I was ready today, but you never expect a huge game like that."

Austin's tackle-breaking 59-yard catch-and-run from Tony Romo gave the mistake-prone Cowboys a 20-13 lead over the Chiefs with 2:16 left. Then after Matt Cassel's 16-yard TD pass to Dwayne Bowe tied it 20-20 with 24 seconds to go in regulation, Austin got free on a 60-yard scoring play on Dallas' second possession in overtime.

Each time, he broke the tackle of cornerback Maurice Leggett.

"It's very frustrating," Leggett said. "But we also have to focus on the bigger stuff so we can get better each and every day."

Kansas City (0-5) is winless for 315 days and has lost eight in a row at Arrowhead Stadium, where the Chiefs were nearly invincible during the 1990s.

"I thought the guys fought hard in all phases," said coach Todd Haley. "I know the guys are hurting."

Austin is the third Cowboys receiver when Williams is healthy. But he was unstoppable against the Chiefs, who led most of the game but couldn't take advantage of the many opportunities the Cowboys kept handing them.

"I just wanted to show people I'm ready to play. I wanted to show my teammates that I want to contribute as much as I can," he said. "I was able to do that."

Dallas (3-2) was penalized 13 times for 90 yards and Romo overthrew several open receivers. Other passes were dropped. Dallas also muffed a punt and missed a field goal attempt.

"Our guys fought the whole game but we didn't do all the right things," said coach Wade Phillips. "There are things we need to work on, but the bottom line is winning and guys coming through."

So has Austin cracked the starting lineup?

"We are going to try and keep him playing," Phillips said. "There is no doubt about that."

Late in the fourth quarter, Austin caught Romo's pass, broke loose from tackles by Leggett and safety Mike Brown, and sped 59 yards to give the Cowboys their first lead of the day.