The Deadly Dozen Testing Battery assesses performance, identifies strengths, and guides training. It includes Journey Fitness Tests for endurance, Labour Fitness Tests for muscular endurance, and optional Barbell Strength Tests. The MAS Test measures Maximum Aerobic Speed, helping athletes set SMART goals and optimize race performance.

The Deadly Dozen (DD) is a global fitness race featuring 12x 400m runs ("Journeys") and 12 exercise stations ("Labours") using kettlebells, dumbbells, and weight plates. Designed for all fitness levels, it follows the Deadly Dozen Triad—Strength, Labour Fitness, and Journey Fitness. With Solo, Pairs, and Relay formats and variations like Row, Ski, and Cycle, DD offers a scalable, structured challenge. More than just a race, it's a complete training methodology.