Moyer won seven straight starts, allowing just 11 earned runs in 44 2-3 innings, before losing 3-1 to Atlanta last Saturday.
“I wasn’t as consistent as I wanted to be,” Moyer said after matching his season high with four walks in the loss. “You have to be aggressive in and out of the strike zone against a ballclub like this.”
The 40-year-old left-hander has allowed more than three runs just twice in 14 starts. He has been awesome against the Angels this season, pitching 14 scoreless innings over two starts.
Moyer will be opposed by Anaheim’s Ramon Ortiz, who has won his last three starts. The right-hander allowed just one earned run in seven innings of a 13-3 victory against the Mets on Saturday.
The Mariners, who have won eight of their last 11 games, beat the Angels 2-0 on Wednesday as Freddy Garcia pitched eight shutout innings.
Seattle has won 17 of 21 and continues to have the best record in baseball. Seattle, which won an AL-record 116 games in 2001, had only 13 losses when it won its 48th game that season.
The Angels have dropped five of their last six games.
STANDINGS: Angels - 3rd place, 13 1/2 GB, AL West. Mariners - 1st place, AL West.
ANGELS PROBABLE STARTER: Ortiz (7-5, 5.10 ERA). Ortiz has been dismal against the Mariners this season, going 0-2 with a 6.94 ERA in two starts.
MARINERS PROBABLE STARTER: Moyer (10-3, 2.99 ERA). Moyer is 13-8 with a 4.82 ERA in 31 career appearances—including 26 starts—against Anaheim.
OFFENSIVE LEADERS: Angels - Garret Anderson, .316 avg, 16 HRs and 63 RBIs; Troy Glaus, 44 runs; Adam Kennedy, 11 SBs. Mariners - Ichiro Suzuki, .349 avg. and 18 SBs; Bret Boone, 19 HRs, 59 RBIs and 55 runs.
SEASON SERIES: Mariners, 6-3.
STREAKS AND NOTES: Angels - OF Anderson is 16-for-42 (.381) with four homers and 11 RBIs against LHP Moyer. … 3B Glaus, locked in an 0-for-24 slump, didn’t play on Wednesday. Scott Spiezio started at third base and went 1-for-3 with a walk. … The Angels lead the AL with 62 stolen bases and rank first in the majors for fewest strikeouts (352). Mariners - Moyer has not lost to an American League team since an 8-5 setback to the New York Yankees on April 30. … RHP Kazuhiro Sasaki has two fractured ribs and a slightly torn abdominal muscle, an MRI showed Wednesday. Two earlier X-rays failed to disclose the injuries. … The Seattle bullpen hasn’t allowed a run in seven straight games.
ROAD/HOME RECORDS: Angels - 16-20 on the road; Mariners - 23-14 at home.
INJURIES: Angels - RHP Mickey Callaway (shoulder), 15-day DL; RHP Matt Wise (elbow), 60-day DL. Mariners - INF Greg Colbrunn (oblique), 15-day DL; OF John Mabry (shoulder), 15-day DL; RHP Sasaki (ribs), 15-day DL.