BALTIMORE (Interstat) — In a late-season matchup between two teams playing for pride, Dean Kremer delivered a masterful performance, pitching 6 1/3 innings of one-hit ball to lead the Baltimore Orioles to a 6-0 victory over the Tampa Bay Rays on Tuesday night at Oriole Park at Camden Yards.

A crowd of 15,267 watched as Kremer (11-10) dominated the Rays’ lineup, striking out four and walking none in his 30th start of the season. The right-hander continued his career-long mastery of Tampa Bay, improving his lifetime record to 5-1 with a 1.64 ERA across 11 starts against the American League East rivals.

The Orioles (74-83) scored early and late to secure the win in the first game of their final home series of the 2025 campaign. They plated two runs in the first inning, one in the third, one in the fifth, and put the game out of reach with two more in the sixth. The Rays (76-81), meanwhile, were held to just two hits all night and never seriously threatened.

Baltimore’s offense staked Kremer to an immediate lead in the bottom of the first against Tampa Bay starter Ryan Pepiot (11-12). Jackson Holliday worked a leadoff walk and scored when Jordan Westburg doubled and later came home on Gunnar Henderson’s sacrifice fly to left field. Tyler O’Neill followed with a groundout that allowed Westburg to cross the plate, giving the Orioles a 2-0 advantage.

The Orioles extended their lead to 3-0 in the third inning. After Coby Mayo singled and advanced to second on a groundout, Henderson delivered a two-out, line-drive single to center field to bring Mayo home.

Tampa Bay’s only hit against Kremer came in the fourth inning when Chandler Simpson hit a ground-ball single to center. Simpson advanced to third on a groundout, but Kremer stranded him there by getting Junior Caminero to fly out to right field.

The Rays’ best scoring opportunity came in the fifth inning, when Jake Mangum reached second base on a two-base error by Orioles left fielder Dylan Beavers. Kremer, however, bore down and struck out Hunter Feduccia and Carson Williams to end the inning unscathed.

Baltimore added an insurance run in the fifth on a sacrifice fly by Westburg, scoring Colton Cowser, who had singled earlier in the frame.

The game was broken open in the sixth inning against Rays reliever Ian Seymour. After two quick outs, Samuel Basallo was hit by a pitch, bringing Cowser to the plate. Cowser connected on a towering fly ball that cleared the center-field wall for a two-run homer, his 16th of the season, pushing the Baltimore lead to 6-0.

The Orioles’ bullpen preserved the shutout with 2 2/3 innings of scoreless relief. Yaramil Hiraldo struck out two in a perfect inning of work, Colin Selby pitched a 1-2-3 eighth, and José Castillo recorded the final two outs of the ninth after Kevin Kelly of the Rays had kept Baltimore off the board in the seventh and eighth.

Pepiot took the loss for Tampa Bay, allowing three runs on three hits over three innings, walking one and striking out three. Seymour was charged with three runs on four hits in four innings of relief.

The result was a surprise based on pregame projections. Interstat’s game simulator had projected a 5-4 Rays victory, and Tampa Bay had been installed as a -1.5 run favorite on the betting line. The total score of six runs went well under the over/under line of 9, though Baltimore’s ELO win probability was a narrow 51.2 percent.

The two teams will continue their three-game series on Wednesday night in Baltimore. The Orioles will then conclude their home schedule on Thursday before heading to New York for a weekend series against the Yankees. The Rays will finish their road trip with three games in Toronto against the Blue Jays beginning Friday.