Joliet Slammers Unveil Prison-Inspired Uniforms and Giveaways for 'The Big House Ballgame'

Historic exhibition game at Old Joliet Prison celebrates Route 66 Centennial with themed jerseys, fan experiences.

Apr. 7, 2026 at 7:35pm

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A cubist, geometric painting depicting a baseball game at the Old Joliet Prison, with the Slammers' yellow and black uniforms breaking down into overlapping planes of color and shape.The Joliet Slammers' prison-themed uniforms and historic setting create a unique and immersive experience for fans at 'The Big House Ballgame'.Joliet Today

The Joliet Slammers are hosting a special 'Big House Ballgame' exhibition on April 30th at the Old Joliet Prison, featuring prison-inspired uniforms modeled after historic designs found within the prison walls. The first 1,000 fans will receive a commemorative tin cup giveaway, and fans will have the opportunity to bid on the game-worn jerseys through an online auction. The event is part of the Route 66 Centennial Celebration, with pregame entertainment, limited capacity, and a matchup against Frontier League rival Gateway Grizzlies.

Why it matters

The Big House Ballgame is a unique opportunity for the Joliet community to celebrate the Route 66 Centennial in a historic setting, while also providing fans with an authentic, one-of-a-kind baseball experience. The prison-themed uniforms and fan giveaways add to the immersive atmosphere, connecting the game to Joliet's rich history.

The details

The Joliet Slammers have partnered with the Joliet Area Historical Museum to bring baseball back to life at the Old Joliet Prison. The team's prison-inspired uniforms were modeled after designs discovered within the prison walls, featuring the historic yellow and black color scheme. Fans will have the chance to bid on the game-worn jerseys through the team's online auction platform, DASH. Additionally, the first 1,000 fans through the prison gates will receive a commemorative tin cup giveaway, a nod to daily life inside the prison.

  • The Big House Ballgame is scheduled for Thursday, April 30th, 2026.
  • Gates will open at 12:00 p.m., with the first pitch set for 3:05 p.m.

The players

Joliet Slammers

A professional baseball team that plays in the Frontier League and is hosting the Big House Ballgame event.

Joliet Area Historical Museum

A museum that has partnered with the Joliet Slammers to bring baseball back to the historic Old Joliet Prison.

Gateway Grizzlies

A Frontier League rival of the Joliet Slammers, who will be facing off against them in the Big House Ballgame.

Night Train Veeck

The Executive Vice President of the Joliet Slammers, who is overseeing the Big House Ballgame event.

Route 66 Centennial Commission

An organization supporting the celebration of the 100th anniversary of the historic Route 66 highway, which is a key part of the Big House Ballgame event.

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What they’re saying

“The Big House Ballgame is about celebrating the Route 66 Centennial and creating lasting memories for the Joliet community in a truly unique setting.”

— Night Train Veeck, EVP of the Joliet Slammers

What’s next

With limited capacity at the Old Joliet Prison, fans are encouraged to secure tickets in advance. Tickets are available at www.jolietslammers.com.

The takeaway

The Big House Ballgame is a one-of-a-kind event that combines baseball, history, and community celebration. By embracing the prison's legacy and the Route 66 Centennial, the Joliet Slammers are creating a truly immersive experience that will leave a lasting impression on fans and the local community.