Well-traveled right-hander Bartolo Colon aims for victory No. 165 in the big leagues today when the Oakland Athletics visit Camden Yards for the finale of a three-game series with the Baltimore Orioles.

Colon, who'll turn 39 in May, had pitched in 357 games with six teams - Cleveland, Montreal, the Chicago White Sox, Anaheim/Los Angeles, Boston and the New York Yankees - before signing a one-year, $2 million deal with the Athletics on Jan. 24.

He was a 21-game winner with the Angels in 2005, but had combined to win just 22 more times with the Angels, Red Sox, White Sox and Yankees through 2011.

He's been solid in four of five starts with the Athletics, allowing just three earned runs on 17 hits in 30 innings while defeating Seattle twice and the Angels.

He allowed two runs in seven innings of a 4-0 loss to the White Sox and was tagged for seven runs and 10 hits in 4 1/3 innings of an 8-7 loss to the Mariners.

Lifetime against Baltimore, he's 11-8 with a 3.26 earned run average.

The Orioles reply with righty Tommy Hunter, who was 12 years old when Colon made his big-league debut in 1999.

Hunter was a 13-game winner with Texas in 2010 before winning just four times while splitting 2011 with the Rangers and Orioles.

He won his initial start with Baltimore in 2012 and made it two victories in his most recent start on April 24, allowing a run on three hits in six innings of a 2-1 defeat of Toronto.

In between those wins, he was 0-1 in two starts while giving up 15 hits and 13 runs in 11 2/3 innings.

Hunter has never lost to the Athletics, winning five decisions in eight appearances - six starts - while carrying a 4.28 ERA in 40 innings.

On Saturday, Chris Davis belted a solo home run and knocked in four runs while Wei-Yin Chen tossed seven innings of one-run ball as the Orioles rolled to a 10-1 triumph.

Chen (2-0) scattered six hits and walked two with four strikeouts in the start. Adam Jones added three hits and scored three times and Ronny Paulino tallied two RBI for Baltimore, which has won five of its last six.

Tyson Ross (1-1) was charged for nine runs on 11 hits and one walk in four- plus innings to take the loss. Jonny Gomes accounted for the only Oakland run with a solo blast in the sixth as the A's saw their three-game winning streak halted.

The A's won five of nine versus the Orioles last season, but lost all three games in Baltimore.