The star of the 1920 World Series, he led the Indians to their first title with three complete-game victories, including a 3–0 shutout in the Game 7 finale.

Traded to the Washington Senators after the 1924 season, he helped that club to its second AL pennant in a row with 20 victories against only 5 losses, including a 13-game winning streak, while again leading the league in ERA.

They settled in Shamokin, where Anthony worked as a coal miner, in Northumberland County, east of the Susquehanna River and northeast of the state capital of Harrisburg.

Originally reluctant to sign for the club, he only agreed to do so if his older brother John also joined; at that time he anglicized his name, changing it to Coveleskie, which it would remain throughout his professional career.

[1] During his first trip to Lancaster, he recalled that it was "the first time I ever rode on a train", and he added that he "was too shy to eat in the hotel with the rest of the team".

[8] In September 1912, manager Connie Mack signed him to a contract with the Philadelphia Athletics and brought him to the major leagues.

By the time Coveleski made his debut for the Athletics on September 10, pitching one inning in relief in an 8–6 road loss to the Detroit Tigers, the two-time defending World Series champions were more than a dozen games out of first place – the only year between 1910 and 1914 they failed to win the pennant.

Coveleski won his first game two days later in his first start, a 3–0 three-hit shutout of the Tigers, allowing only two singles and a double by Ty Cobb.

[1] At the time of his debut, the powerhouse Philadelphia club boasted a strong group of talented pitchers, including Eddie Plank, Chief Bender, and Jack Coombs.

"[10] After the 1914 season, the Portland Beavers of the Pacific Coast League wanted Coveleski, and traded five players to Spokane to acquire him.

[8] After the season ended, the Cleveland Indians purchased Coveleski from Portland, and he joined the major league squad in 1916.

Coveleski fought health problems during the season, suffering from tonsillitis in the middle of the year and pitching one game with a fever of 102 °F (39 °C).

[14] Coveleski's status as the ace of the staff was demonstrated when he was named the starter for Opening Day of the 1917 season; he beat the Detroit Tigers 6–4 on April 11.

[9] On September 19, Coveleski pitched the only one-hitter of his career, a 2–0 road win over the New York Yankees; the only hit came from Fritz Maisel in the seventh inning.

[10] He won his first seven starting appearances of the season, but on May 28 his wife died suddenly, and he was given some time off to mourn, returning to pitching two weeks later.

Covaleski was the starting pitcher against the Yankees on August 16, and hit a sacrifice fly to help the Indians win 4–3, but it is best remembered as the game in which a pitch by the Yankees' Carl Mays hit Indians shortstop Ray Chapman in the head, resulting in the only death in major league history.

In his last appearance on September 22, he gave up a career-high ten runs in a 10–4 loss to the Yankees, ending the season with a 15–16 record and a 4.04 ERA.

[9] In December 1924, after nine years pitching for Cleveland, Coveleski was traded to the Washington Senators for pitcher By Speece and outfielder Carr Smith.

[9] The Senators won the AL and were to face the Pittsburgh Pirates in the 1925 World Series, but Coveleski suffered from sore back muscles late in the season.

In Game 2, he faced Vic Aldridge in a pitcher's duel; the teams were tied at one apiece in the eighth inning, but a two-run home run by the Pirates' Kiki Cuyler led to a 3–2 loss.

[9] To start the 1927 season, due to an injury to Walter Johnson, Coveleski became the Senators' Opening Day starter against the Red Sox; he won the game 6–2.

He became a popular member of the community in South Bend, providing free pitching lessons to local youths in a field behind his garage.

[37] In 1969, Coveleski was named to the Baseball Hall of Fame by the Veterans' Committee alongside 1920s pitcher Waite Hoyt.

[1] To fellow ballplayers, Coveleski was considered "taciturn and ornery" on days when he was scheduled to pitch but was otherwise friendly with a lively sense of humor.

[39] In 2001, baseball writer Bill James ranked Coveleski 58th among the all-time greatest major league pitchers.