ATHX Games Tripartite Performance Calculator (Strength, Endurance & MetCon X)

Powered by the Struggl ATHX Tripartite Subsystem and POST /v1/public/athx. Models the 6-zone 2.5-hour ATHX format across Pro, ATHX Open, and Lite divisions (Solo & Pairs) using Wathan (1994) rep-max conversion, mixed-modal Run/Row transition tax, and low-point leaderboard simulation.

ComponentDeterministic Specification & Literature Benchmark
Rule / Benchmark 01Zone 1 — Strength Zone (20-min Rolling Ladder): 1RM Strict Press (0-6m), 3RM Back Squat (6-12m, ~91.7% 1RM fresh), and 5RM Conventional Deadlift (12-20m, ~85.7% 1RM minus cumulative CNS/lumbar fatigue).
Rule / Benchmark 02Zone 2 — Endurance Zone (22-min Continuous Run/Row): Alternates 1,000m (Pro), 750m (ATHX Open), or 500m (Lite) Run and Concept2 Row segments; accounts for Zone 1 posterior-chain fatigue and transition losses.
Rule / Benchmark 03Zone 3 — MetCon X (25-min Cap): Station-by-station pacing across SkiErg calories, Ground-to-Overhead, Sandbag Carry, Box/Bench Overs, DB Walking Lunges, and Burpee Broad Jumps.
Rule / Benchmark 04Low-Point Rank & Hyrox Bridge: Identifies which of the 3 zones costs the most leaderboard points and maps Hyrox finish times + barbell totals to your optimal ATHX division.

Verified Scientific DOIs: 10.1519/00124278-199711000-00001, 10.1519/JSC.0b013e31823a3e2d, 10.1007/s40279-021-01587-7