Team History

The Mariners have been a member of the Cape Cod Baseball League since 1930, when the team first began play in Harwich. In the league's Modern Era, the team has qualified for the postseason on 21 different occasions. Its first appearance came in 1968, when Harwich dropped the championship series, 3-1, to the Falmouth Commodores in what would become the first of Falmouth's four consecutive titles between 1968 and 1971.

Harwich made the postseason three times in the 1970s, reaching the championship series in 1978 and 1979, losing both times to the Hyannis Mets in four games.

Finally, in 1983, Harwich broke through, winning its first Cape Cod Baseball League championship in the Modern Era. The Mariners finished the regular season with only the third-best record in the league, but eliminated the Hyannis Mets, 2-1, to earn a berth in the championship series. Harwich prevailed over the top-seeded Cotuit Kettleers in five games, taking the series to win the crown.

After finishing the season with the best record in the league in 1987, Harwich defeated the Yarmouth-Dennis Red Sox to win its second league title in five years.

The Mariners saw little success after that, qualifying for the postseason only once, in 1997, over the next several seasons when they were swept by the Wareham Gatemen in the championship series.

After an 11-year postseason drought, the Mariners stormed the Cape League in 2008, and sweeping the Cotuit Kettleers in dramatic fashion to claim the Cape Cod Baseball League championship in 2008. The Mariners swept the Falmouth Commodores in 2011 to win their second championship in four years.

Since 2008, the Mariners have since reached the playoffs in all but three subsequent seasons. However, they've reached the championship round only once, losing to Cotuit in 2019. They won the East Division three times in the regular season since 2008, with titles in 2012, 2014 and 2016.

Current Alumni in MLB

  • Adam Ottavino (2005)
  • Daniel Hudson (2007)
  • Brandon Belt (2008)
  • DJ LeMahieu (2008)
  • Pierce Johnson (2010)
  • Austin Nola (2010)
  • Taylor Motter (2010)
  • Kevin Gausman (2011)
  • Joe Mantiply (2011)
  • Tyler Rogers (2011)
  • Taylor Rogers (2011)
  • Chris Stratton (2011)
  • Luke Voit (2011)
  • Trey Mancini (2012)
  • Aaron Nola (2012)
  • Brandon Woodruff (2012)
  • Jalen Beeks (2013)
  • Aaron Bummer (2013)
  • Ian Happ (2013-14)
  • Cavan Biggio (2014-15)
  • Jake Cousins (2015)
  • Ernie Clement (2016)
  • Packy Naughton (2016)
  • Cal Raleigh (2016)
  • Peter Solomon (2016)
  • Jonathan India (2016-17)
  • Pavin Smith (2016-17)
  • Joey Bart (2017)
  • Tim Herrin (2017)
  • Jake McCarthy (2017)
  • Owen Miller (2017)
  • Josh H. Smith (2017)
  • Chris Vallimont (2017)
  • Matt Vierling (2017)
  • Xzavion Curry (2018)
  • George Kirby (2018)
  • Joe La Sorsa (2018)
  • Andre Lipcius (2018)
  • Logan Allen (2019)
  • Joe Boyle (2019)
  • Joey Wiemer (2019)

Retired MLB Alumni

  • John Cerutti (1981)
  • Pat Pacillo (1982-83) - CCBL Hall of Fame
  • Cory Snyder (1983) - CCBL Hall of Fame
  • Scott Kamieniecki (1984) - CCBL Hall of Fame
  • Joe Magrane (1984) - CCBL Hall of Fame
  • Mel Stottlemyre Jr. (1984)
  • Paul Sorrento (1985)
  • Todd Stottlemyre (1985)
  • Mark Guthrie (1985-86)
  • Chris Hemond (1986) - CCBL Hall of Fame
  • John Flaherty (1987)
  • Bob Hamelin (1987)
  • Charles Nagy (1987)
  • Adam Melhuse (1991)
  • Kevin Millar (1992)
  • Jody Gerut (1996-97)
  • Carlos Pena (1996-97)
  • Jason Bartlett (2000)
  • Kelly Shoppach (2000)
  • Joe Saunders (2001)
  • Shaun Marcum (2002)
  • J.A. Happ (2003)
  • Craig Hansen (2004)
  • Sean Doolittle (2005)
  • Tim Lincecum (2005)
  • Josh Donaldson (2006)
  • Alex Avila (2007)
  • Dustin Ackley (2008)

Special thanks to Cape Cod Baseball League statistician Chris Thoms for historical data, which you can access here.