Indianapolis ? Deciding whether Helio Castroneves or Paul Tracy won the Indianapolis 500 is now the job of IRL president Tony George.

After a full day of presenting witnesses and evidence in support of their drivers at a closed hearing, team owners Barry Green and Roger Penske left without saying a word Monday.

Driver Paul Tracy carries an exhibit as he leaves an appeal hearing Monday at the Indianapolis Motor Speedway in Indianapolis.

George is expected to rule within 10 to 30 days on Team Green’s appeal, which contends its driver, Tracy, was the winner. Castroneves was credited with the victory.

“This was conducted in what I like to characterize as the rules of a conference room,” said hearing administrator Dave Mattingly. “Both teams sort of presented their sides simultaneously. It was very relaxed and casual.”

Green and Penske declined comment, scooting out the back door of the Indianapolis Motor Speedway’s administration building when the six-hour meeting ended. Green hopes to overturn the result of May 26. Tracy, declared the second-place finisher, attended the hearing Monday, and Mattingly said Castroneves also testified.

Mattingly did not say whether Castroneves testified in person after racing Sunday in Fountain, Colo., and also declined to say how many witnesses were called.

IRL vice president Brian Barnhart, who denied Green’s protest the day after the race, did testify.

“I think the arguments you’ve heard in the past were similar to the arguments that were made today,” Mattingly said. “Brian Barnhart stated his position and then Barry Green was allowed to present whatever he wanted to present and then Roger was able to present whatever he wanted to present.”

Tracy passed Castroneves on the second-to-last lap of the race. An accident behind the leaders brought out a yellow caution flag, and Tracy’s pass was ruled to have come after the yellow was shown.

Track officials ordered Castroneves be put back in the lead. He won under yellow, making him the first repeat winner at Indianapolis since Al Unser in 1970-71.

Green has argued that Tracy completed the pass before the yellow came out.

A week after Barnhart upheld his own decision awarding Castroneves the victory, Green filed his appeal. The CART team owner spent the last two weeks collecting information and refining the arguments he presented Monday.

George’s decision is expected to be final. Mattingly said both sides agreed that this appeal will be the last step.

“I think both sides will be very professional and will let Tony deliberate and make whatever decision he thinks is appropriate,” Mattingly said.

George could have appointed a three-person panel to hear the case but decided to be the sole arbiter.

A victory has not been overturned at Indianapolis since 1981, when Bobby Unser crossed the finish line first and was later assessed a one-lap penalty for passing cars under the yellow. Track officials then awarded the victory to Mario Andretti.

In October, 41â2 months after the race, officials took away the penalty, making Unser, who drove for Penske, the winner again.