After splitting their first two recorded contests, the seemingly evenly-matched teams met for a highly-anticipated third game, this time as an attraction at the Barnstable County Fair.

The Cummaquids took the lopsided match, 30–13, and with their victory secured the prize of a "beautiful silver mounted carved black walnut bat costing $15.

[4][5][6] An 1885 poster advertising another July 4 contest, this time between Barnstable and Sandwich, was uncovered by the National Baseball Hall of Fame and Museum in Cooperstown, New York.

At Cory and Crane's expense, various well-known professional and amateur players were brought in to play alongside the Hyannis locals.

In 1888, Cory and Crane outfitted the club in "suits which were of the best white flannel and red stockings," and secured the services of pitcher Dick Conway and catcher Mert Hackett, both formerly of the major league Boston Beaneaters.

[8][9][10] In 1889, Hackett was back, along with Barney Gilligan, who had played for the 1884 major league champion Providence Grays, where he was a teammate of Cape Cod native Ed Conley and batterymate of Baseball Hall of Fame hurler Charles "Old Hoss" Radbourn.

"[26][27][28] Holy Cross star Ed Gill tossed no-hitters for Hyannis in 1916 and 1917, and in the latter did not allow a ball to be hit to the outfield.

"[34][35] In 1923 the Cape Cod Baseball League was formed and originally included Falmouth, Chatham, and two Barnstable teams: Osterville and Hyannis.

Osterville and Hyannis agreed to share the title in 1926, as weather and the departure of college players for school prevented the scheduling of a decisive game.

Hyannis boasted a "parade of sluggers"[43] that included Georgetown University football star Tony Plansky, who went on to play for the NFL's New York Giants.

[56][57][58] In 1929, Hyannisport summer resident and ex-Boston mayor John F. "Honey Fitz" Fitzgerald performed his well-known rendition of Sweet Adeline at a benefit concert for the Hyannis baseball team.

[59] Osterville's 1924 pennant winners featured Shanty Hogan and Danny "Deacon" MacFayden, a Cape Cod native from Truro.

Hogan batted .385 on the season, was named team MVP, and reportedly smashed the "longest home run ever seen" at West Bay Field.

Lane had just completed his rookie season in the National Hockey League, a defenseman for the 1929 Stanley Cup champion Boston Bruins, and played for Osterville through 1931.

[71] From 1933 to 1937, Barnstable was led by player-manager Ed "Pete" Herman, a pitcher from Boston College who had played previously in the league for Chatham.

[75] Gore was a crowd favorite, known for his "chatter, pepper, and flashy fielding,"[76] he went on to enjoy a ten-year umpiring career in the National League.

[87] The powerful team had seven players who batted over .300, and also featured burly slugger John Spirida, who went on to play pro football for the Washington Redskins in 1939.

[98][99] In its inaugural season, the new Hyannis franchise played its home games at Barnstable High School,[100] and was skippered by Ben Hays, who had previously managed in the league with Chatham.

The Mets finished the regular season in fourth place in the eight-team league and posted a winning record, enough to qualify them for the playoffs where they were subsequently ousted by Chatham.

Managed by CCBL Hall of Famer Bob Schaefer, who had played and managed in the league with Sagamore and Bourne,[103] the team was powered by three CCBL Hall of Fame players: pitcher Dennis Long,[104] Holy Cross standout Ron Perry Jr.,[66] and slugging catcher Bill Schroeder, who belted 15 home runs for the Mets and was named the league's MVP and Outstanding Pro Prospect.

The Mets jumped out early in Game 2 at Eldredge Park on first-inning long balls by Schroeder and Jim Watkins.

In the nightcap at Whitehouse Field, Hyannis jumped out to a 5–0 lead in the top of the first, but when the Mariners scored two of their own in the bottom of the opening frame, the Mets brought in all-star reliever Ed Olwine for some long relief.

[117][118] With a club that included future major league player and Boston Red Sox manager John Farrell, the 1982 Mets reached the title series but were swept by Chatham.

[119] In 1987, Hyannis was led by a pair of CCBL Hall of Famers in pitcher Pat Hope[120] and future major league all-star Robin Ventura.

The 1989 Mets were skippered by CCBL Hall of Famer Ed Lyons,[71] and featured league Outstanding Pro Prospect and future Philadelphia Phillies all-star pitcher Tyler Green, but the club was again swept in the title series, this time by Y-D.[121] Hyannis once again claimed the Cape League title in 1991, with a team that included future major leaguers Rich Aurilia and Boston Red Sox captain Jason Varitek.

Don Wengert was strong on the mound for the Mets in Game 2 at Chatham, and Hyannis got two-run blasts from Greg Shockey in the first and Matt Luke in the sixth to win 5–2 and complete the series sweep and claim a third CCBL crown.

[127][128] The 2000 season saw internationally-acclaimed recording star and Martha's Vineyard resident Carly Simon on hand at McKeon Park to toss out the first pitch and take in a few innings of the Mets' July 11 game with Brewster.

[140][141] University of Hawaii hurler Matt Daly provided the highlight of the 2007 season with a no-hitter against Wareham at McKeon Park.

[142][143][144] Mets Slugger Chris Dominguez crushed three home runs in a single game in 2008, the first CCBL player to accomplish the feat since Baseball Hall of Famer Frank Thomas did it for Orleans twenty years earlier.

The Harbor Hawks boasted the league's Outstanding Pro Prospect for a second consecutive year as Jeff Hoffman won the 2013 award.