The Triple-A Norfolk Tides have had one of the minors’ best lineups all season. Even as the Orioles pull from it to boost theirs, they continue to refill those holes with more top prospects.

Baltimore is promoting third baseman Coby Mayo and right-hander Chayce McDermott from Double-A Bowie to Norfolk, a source with knowledge of the organization’s plans confirmed to The Baltimore Sun.

By sending Mayo — a 21-year-old who Baseball America ranks as Baltimore’s No. 9 prospect — to Norfolk, the Orioles add to a Tides lineup that lost infielder Jordan Westburg and outfielder Colton Cowser after they were promoted to the majors in recent weeks.

This year at Bowie, Mayo hit .310 with 17 home runs and a 1.036 OPS. He was named the Eastern League’s and the Orioles’ minor league Player of the Month for June after batting .340 with eight home runs in the month. Mayo, Baltimore’s fourth-round pick in the 2020 draft, joins outfielder/first baseman Heston Kjerstad and infielder César Prieto as notable hitting prospects who have gone from Bowie to Norfolk this year.

McDermott, 24, was one of two pitchers the Orioles acquired last August in the three-team trade that sent Trey Mancini to the Houston Astros. In 16 outings (14 starts) for Bowie, McDermott posted a 3.56 ERA over 68 1/3 innings, striking out 88 batters. Baseball America ranks him as the Orioles’ No. 15 prospect, fourth among pitchers behind Grayson Rodriguez, DL Hall and Cade Povich. Right-hander Seth Johnson, recovering from Tommy John elbow reconstruction surgery after being acquired from the Tampa Bay Rays in the Mancini trade, is the organization’s No. 17 prospect.

Mayo and McDermott join one of the minors’ best teams and are now possibly positioned to help one of the majors’. Holding the American League’s second-best record at the All-Star break, the Orioles are chasing their first playoff berth since 2016.

MASNSports.com was first to report the promotions.

This story may be updated.

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