ARLINGTON, Texas -- The Rangers finished off the month of April by being beaten soundly in three consecutive losses to Oakland.

But manager Ron Washington was hardly running for the exits, even after his three most reliable starters took a beating in successive days.

In fact, the manager couldn't have been happier as he took account of the first 30 days of the season.

The team broke spring training with only one healthy starting pitcher, plus injuries to their starting catcher and second baseman.

In addition, Prince Fielder has been in a prolonged slump and Adrian Beltre missed two weeks. So, the manager couldn't help but smile at the team's 15-13 record.

Good starting pitching -- particularly from Yu Darvish, Martin Perez and Robbie Ross -- has kept the Rangers near the top of the American League.

Those three were less than stellar the past three days. On Wednesday, Oakland blasted Ross with 10 runs on 11 hits in 3 1/3 innings of a 12-1 loss.

The Rangers have used every ounce of depth to not only stay afloat but, even with a current four-game losing streak, flourish. Jeff Kouzmanoff hit .362 and fielded third base well in place of Beltre, who made a stint on the DL with a sore quadriceps. Josh Wilson and Donnie Murphy have filled in for Jurickson Profar at second base.

And a cast of pitchers has filled holes in the bullpen.

"It's been very successful in the sense we've been playing hurt since the season started," Washington said. "We've needed all the depth we've had and guys have been stepping up. We need to get some consistency throughout our lineup.

"With what we started the season with and all we've had to deal with, I'm proud of the way those guys have played."

Texas continues a string of 19 of 22 games against AL West Division opponents with a three-game series against Anaheim starting Friday.

The Rangers have struggled finding offensive consistency. Fielder's season-opening slump is a big reason.

"It's been nothing great," shortstop Elvis Andrus said. "I think we've played some good ball, pretty solid for us. It's all about building throughout the season."