Published on 8/24/2026

Harwich Mariners (Cape Cod Baseball League) @ Whitehouse Field (Harwich, MA)

A team so old MLB couldn’t do anything about it

SUMMER OF BASEBALL 2023: STOP 12

*For more on the Cape Cod Baseball League, I wrote about it here, and I personally recommend you check it out.

The Harwich Mariners were founded in 1946, and that 1946 establishment is a large reason of why they're still the Mariners, as when MLB tried to enforce its trademarks in 2010, the league was unable to force the Mariners to change their name, as they had it long before MLB’s Seattle Mariners were established (1977). However, the Harwich Mariners opted to change their colors (which were a carbon copy of Seattle’s navy, teal, and silver) at some point (though their uniforms do still bear some resemblance to Seattle, it's much less of a "match", plus the team wears red and blue now).

While the Bourne Braves are the Cape League's "most dynastic" team right now, Harwich is VERY much right behind them - while they've been to the Cape League championship series twice post-COVID, they've won both of those series over Bourne (the only other team to beat Bourne in that span: Brewster - who lost in 2022).

Whitehouse Field is basically surrounded by woodlands: you enter through a densely wooded area and trees are abundant around the outfield. The field is a bit of a distance from the fence separating it from the parking lot, so it ends up creating a “plaza” like environment with picnic tables and ample room for kids to chase foul balls that land in the woods.

This may also be the easiest stadium to park at (though for peak crowds that may not be too consoling): besides the main lot near the field, there’s a secondary lot connected to the main lot (as there's a school decently adjacent to the field) as well as another lot across the street (for a community center).

I must say: foul ball competition was probably fiercest here. Maybe it’s the fact that there’s a lot of running room compared to some of the other parks in New England, but every single foul ball had at least 15-20 kids doing head-on sprints for it at one game I went to.

This is also one of two stadiums on Cape Cod where I saw the league’s All-Star Game¹ - a showcase of the league's best talent (i.e. some of the best college baseball players in the country). Unlike the MLB All-Star Festivities, it's a bit of a "full day" event: gates are usually in the early afternoon, and then the All-Star players have a designated time where they sign autographs before a Home Run Derby and the game itself take place back to back (NOTE: I probably should have done this when I talked about the North Shore Navigators, as I went to the All-Star Game they hosted the day after this one and it's pretty similar minus the autographs). This is one of those situations where parking is probably hard to get (as it draws WELL over what the team normally draws), so if you ever think about going to the Cape League All-Star Game, be aware of this (as well as the fact that it's the ONE game on Cape Cod that requires a ticket to attend).

MERCH

Concessions are at the base of the press box, and a merchandise stand (renovated in 2022) sits behind the first base bleachers. In addition to the games I've been to here, I also made a visit here in 2021 in the MORNING (as the stand had morning hours back then), but the only thing I got was an adjustable hat that I don't even know if I still have.

Also, at the All Star Game in 2023, I ended up buying a warm up shirt with the best possible number on the back. I will not say which number that is (because I assume families with impressionable kids read this), but let's just say it's the OG meme number (and not the one that became a meme AFTER I bought the shirt).

ON DECK

A team I TOTALLY forgot to write about in 2023!