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Boston K Men Team Up With The BASE

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Boston K Men Team Up With The BASE Fundraiser - unisex shirt design - front
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Boston K Men Team Up With The BASE shirt design - zoomed
Boston K Men Team Up With The BASE shirt design - zoomed
American Apparel USA-Made Jersey T-shirt

Join our campaign to support pathways to success for urban youth!

All funds raised will go directly to The BASE
50 goal
Thanks to our supporters!
American Apparel USA-Made Jersey T-shirt, Unisex - Red
American Apparel USA-Made Jersey T-shirt
Unisex - Red
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About this campaign

All funds raised through Boston K Men t-shirt and hat sales go directly to The BASE, a Boston-based nonprofit that serves student-athletes primarily from Roxbury, Dorchester and Mattapan.

VIDEO: NESN's Jahmai Webster posts a "K" then talks to the K Men about their campaign for our city's kids.

The Boston K Men phenomenon began 24 years ago, when Pedro Martinez joined the Red Sox. At every home game that Pedro pitched between 1998 and 2004, the crew — mostly teenagers — plastered K signs symbolizing his strikeouts on the back wall of the Fenway Park bleachers.


After Pedro left the Sox, the K Men migrated from the bleachers to their current perch above the Green Monster, posting Ks each season for the team’s ace pitcher — from Daisuke Matsuzaka and Curt Schilling to Josh Beckett and Jon Lester.

In 2022, with Chris Sale on the injured list, the crew decided to record strikeouts each time Nate Eovaldi takes the mound at Fenway.

K is the symbol for strikeout because it is the last letter of the word “struck,” as in, “most batters who faced Pedro struck out.” We post the K forward if the batter strikes out swinging; backwards if the umpire calls the third strike.

Each year, we design new t-shirts and hats, which we sell on this website to benefit student-athletes in our city. We are committed to using our small role and platform within Red Sox Nation to proudly promote the important work of The BASE and to connect otherwise disconnected communities.

Pitch in and support Boston’s youth by ordering your Dominican flag shirts here and your backward-ꓘ trucker hats here.

Thanks to a generous donation from the sports bar Game On!, 100 percent of your $30 donation will go to The BASE.

You can also donate directly to the organization here.

This year, thanks to the generosity of the Red Sox, we are also able to host student-athletes from The BASE on the Wall as well.

Look for them posting Ks, buy a shirt and hat and support urban talent!


The BASE leverages the power and passion of baseball to transform lives of Boston’s youth, providing pathways to higher education and productive citizenship for student-athletes. Founded by community leader Robert Lewis, Jr., the Roxbury-based nonprofit organization operates a premier youth academy that offers exceptional athletic training and competition combined with academic and career support.

Our goal is simple: raise funds and awareness for our city’s kids — and help build a movement of citizens committed to their success.


For every additional $20 donated to The BASE above the $30 cost of a shirt or hat, participants may submit one individual entry into a drawing to win two Red Sox tickets and a spot posting Ks at Fenway in 2023.

The drawing will be held after the season in fall 2022.



While “The K Men” is the group’s official name, it is a bit of a misnomer. The K Men believe in equal opportunity, with representation from men, women and children.


All Boston K Men official gear is designed by artist Matt Tavares, a longtime K Man and now a New York Times bestselling author and illustrator of many award-winning children’s books including Growing Up Pedro.

ThanK you for pitching in!

-Boston K Men


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