Lisalverto Bonilla became the first pitcher in Texas Rangers history to win his first three career starts with a 5-1 victory over the Houston Astros on Wednesday night.
Bonilla (3-0), promoted Sept. 2 from Triple-A Round Rock, allowed four hits and struck out seven in six scoreless innings.
His wins all have come during a stretch when the Rangers have won 11 of 12 games, including their last four.
Their sweep of Houston was the Astros' third loss in a row and seventh in nine games.
Houston starter Scott Feldman (8-12) allowed only one hit through 4 1-3 innings. With one out in the fifth, Leonys Martin bunted for a single and scored on Andrus' double down the left field line.
Andrus has driven in six runs in his last nine games after a stretch of 11 games without an RBI.
Texas added four runs against reliever Jose Veras in the seventh on Rougned Odor's solo home run and a three-run shot by Ryan Rua. The rookie first baseman's homer was the Rangers' only hit in nine at-bats with runners in scoring position.
The Astros' run came on Jonathan Villar's homer against reliever Phil Klein in the eighth.
Martin threw out Robbie Grossman at home plate to end the top of the third inning. He was trying to score on a single by Jake Marisnick, but catcher Tomas Telis took Martin's one-hop throw and tagged the sliding Grossman's back.
Boston's Jackie Bradley Jr., with 13, is the American League's only center fielder with more assists than Martin's 11.
In Bonilla's three starts, he has allowed only four earned runs in 17 innings, a 2.12 ERA. He gave up three runs in 3 2-3 relief innings, so his overall ERA is 3.05.
The Rangers had the major leagues' worst record, and the inside track to the first pick in next year's draft, before their current hot streak. The Arizona Diamondbacks (63-96) are now 2 1/2 games worse than Texas' 65-93.
Astros: Chris Carter, in the original lineup at first base, switched with Marc Krauss and became the DH. Manager Tom Lawless said Carter "has a little side-bottom something something, so he doesn't need to be standing all night." . OF George Springer (quadriceps) is with the team but won't play again this season.
Rangers: OF Jim Adduci (concussion) has come off the disabled list but hasn't started because he's not ready to hit. Manager Tim Bogar said Adduci could play in the field or run the bases.
The Astros are off Thursday before beginning their season-ending three-game series Friday in New York against the Mets. RHP Brad Peacock (4-9, 4.82) is scheduled to pitch.
Rangers RHP Colby Lewis (10-14, 5.34) will make his team-leading 29th start Thursday in the opener of a four-game series against visiting Oakland. He won his only start against the Athletics this season.