12 Dozens. 12 Hours. 1 Gross.

August 2 | 2026

Northwood Stadium, Stoke on Trent

Deadly Gross is the ultimate test of endurance, teamwork, and grit — a full-scale hybrid fitness race that pushes human performance to its limits.

It’s simple in theory, savage in execution: complete 12 Deadly Dozen races within 12 hours.
Whether you enter Solo, as a Pair, or in a Team Relay, the challenge remains the same — 12 Deadly Dozens, 12 Hours, One Cut-Off.

• Every metre. Every rep. Every second counts.

• The Hardest Hybrid Event in the World

• Every metre. Every rep. Every second counts. • The Hardest Hybrid Event in the World

Race Format

Relay (Teams of 4)

Each team member completes one Journey and one Labour before tagging the next.

Labours must be completed in order, but teams can customise the sequence to play to their strengths.
Teams can be same-sex or mixed (2 males + 2 females).

Pairs

Partners complete every Journey together, sharing the Labours however they choose.

Teamwork, pacing, and communication will define your success.

Solo

One athlete. 12 hours. Every metre and every rep.

The Solo Gross is a true ultra-hybrid challenge — only for the most resilient athletes on earth.

Deadly Gross — Race Breakdown

Running 57,600 m
Farmers Carry 2,880 m
Deadlifts 720 reps
Lunges 720 m
Snatches 720 reps
Burpee Broad Jumps 720 m
Goblet Squats 720 reps