When the Western Hockey League (renamed from the WCHL) folded in 1926, Shore was sold to the Boston Bruins of the NHL.

In the 1925–26 season, Billy Coutu and Sprague Cleghorn of the Montreal Canadiens were traded to the Boston Bruins.

Another unusual incident involving Shore occurred in January 1930 when he was challenged to a boxing match by baseball player Art Shires.

[5] On January 24, 1933, during a game against Montreal, Shore accidentally punched NHL referee-in-chief Cooper Smeaton during a fight with Sylvio Mantha and was fined $100.

On March 30, 1933, Shore scored a playoff overtime goal against Toronto, the only time he accomplished that feat in his career.

[6] Moments earlier, Maple Leafs teammate King Clancy upended Shore with a hard check as he rushed up the ice.

In retaliation, the Leafs tough-guy Red Horner punched Shore, whose head hit the ice as he fell from the blow.

[6] When he was assured that Bailey would survive, league president Frank Calder suspended Shore for 16 games.

[10] An all-star benefit game was held at Maple Leaf Gardens on February 14, 1934, which raised $20,909 for Bailey and his family.

He commonly had Springfield players who had been out of the lineup perform maintenance in the Eastern States Coliseum, the Indians' home, referring to them as "Black Aces".

[18] Today, the term is commonly used to refer to extra players on the roster who train with the team in case of injury.

[18] Despite this, the Indians prospered under his ownership, making the playoffs 12 times and winning three Calder Cups in a row from 1960 to 1962.

Alan Eagleson, then a little-known lawyer and sometime politician, was brought in to negotiate with Shore on the players' behalf.

The battle escalated for months, ending with Shore giving up day-to-day operation of the club to the Los Angeles Kings; the genesis of the National Hockey League Players' Association stems from that incident.

In the film Slap Shot, Eddie Shore's name, along with Toe Blake and Dit Clapper, is considered synonymous with "old-time hockey."