Extra Innings Watertown
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Extra Innings Watertown is metro Boston's premier indoor baseball & softball training facility. Our We also have a members-only area and a private birthday area.
Extra Innings is a year-round indoor baseball and indoor softball training facility that is dedicated to fulfilling the needs of players of all ages and abilities. Our state-of-the-art facility has over 11,000 square feet of training space, which includes indoor batting tunnels, coin-operated batting cages, and a fully stocked pro shop. Contact us today for more information!
05/04/2026
Registration is now open for our 2026 Summer Camps at Extra Innings Watertown ☀️
📅 8 Weeks Available (June 22 – August 28)
💰 $395 Members | $425 Non-Members
⏰ Extended Day Available
📦 Multi-week packages offered
Our camps focus on skill development, game play, and creating a fun, competitive environment for all players.
📩 Email [email protected] or visit the link in bio to register
04/30/2026
Congrats to Johnny Donnellan on a great career at St. Lawrence University as he heads into the final stretch of his senior season 👏
Johnny has been a big part of the EI Watertown family for years, working the front desk and helping run camps and clinics alongside his dad, Tom.
Proud of you, Johnny. Finish it strong 💪
04/16/2026
New look for the Somerville Senators 🔥
Outfitted for the Boston Metro Baseball League in custom New Balance Baseball sublimated mock mesh 2-button jerseys, paired with GP521 fitteds from THE GAME®
Looking to upgrade your team’s uniforms?
We’ve got you. 📩
04/10/2026
Boston Prime rolling into spring with a fresh look 💥
🟠 Home: Orange
🔵 Road: Navy
Built with purpose:
✔️ Twill Pro Poly for durability + premium finish
✔️ Sublimated Pin Dot Mesh for lightweight performance
9U–12U: Twill Pro Poly (both sets)
13U–14U:
➡️ Orange – Twill Pro Poly
➡️ Navy – Sublimated Pin Dot Mesh
From youth levels, to high school programs, to men’s league teams, we design uniforms that perform and stand out.
Looking to outfit your team this season?
📩 Shoot us a DM — let’s build your set
04/08/2026
WE RE-STRING GLOVES ⚾️
Fresh laces. Better feel. Game ready.
📍 Extra Innings Watertown
📞 617-393-3858
04/07/2026
⚾ April Break Clinic ⚾
📅 April 20th - 24th
📍 Albemarle Field
⏰ 9:00 AM – 12:00 PM
A fun, high-energy week to build skills, stay active, and enjoy the game!
Call us today or register online!
04/02/2026
🚨 TOMORROW 🚨
Join us for our Good Friday Clinic!
📍Extra Innings Watertown
⏰ 9:00 AM – 12:00 PM
Ages 7-13
Come get your work in, sharpen your skills, and have some fun ⚾🔥
04/01/2026
JUST DROPPED 🚨
Combat “Mint Chip” BBCOR 🍦🔥
Only a few in stock:
📏 32” & 33”
These won’t last! Come grab yours at our pro shop.
03/19/2026
🚨 STAFF PICKS ARE IN 🚨
Some of the squad locked in their picks 👀
Who’s taking it all?
Drop your champion ⬇️ 🏀
03/17/2026
🍀 Happy St. Patrick’s Day 🍀
Get your swings in, get your work in and take a little luck with you ☘️
Tunnel rental or pro shop purchase =
FREE St. Patty’s Day bag
Limited supply.
Click here to claim your Sponsored Listing.
Category
Contact the business
Telephone
Address
100 Parker Street
Watertown, MA
02472
Opening Hours
| Monday | 11am - 9pm |
| Tuesday | 11am - 9pm |
| Wednesday | 11am - 9pm |
| Thursday | 11am - 9pm |
| Friday | 11am - 9pm |
| Saturday | 9am - 7pm |
| Sunday | 9am - 7pm |