A complete MMA career, in a world full of real managers

One shared world

• Every fighter on the card belongs to a real manager — the rankings, the callouts, and the belts are contested by people.
• Fights are booked and fought in real time; watch live, or read the recap and the scorecards after.
• Join or charter a fight camp, recruit, and put a stable of fighters together.
• One account across the browser and the Glass Jaw app for iPhone and Android.

Create a distinct fighter

• Choose a weight class and fighting background.
• Select starting techniques and customize your fighter’s look.
• Spend bonus points across physical attributes and combat skills.

Progress through a living career

• Move from amateur fights to the regional circuit and the WFL.
• Watch other fighters build records, move through rankings, and contest titles.
• Train, improve techniques, change gyms, and manage the effects of age.

Simulate complete fights

• Follow round-by-round action or skip ahead to the result.
• Win and lose by knockout, technical knockout, submission, or decision.
• Review named judges’ scorecards when a bout reaches the final bell.

Or go it alone

The solo career sim at playglassjaw.com/solo is free, needs no account, and runs entirely in your browser against a simulated field. Career progress is stored locally in the browser you use, and the Settings screen can export a backup. Clearing site data or changing browsers can remove an unexported save.