Alpha Score Index (ASI) is the world's first football mental performance index. It quantifies what statistics cannot: a footballer's mental readiness to perform. ASI tracks every Premier League squad — over 680 players across 20 clubs. The proprietary scoring system analyses five off-field categories — Harmony, Ecosystem, Stability, Foundation, and Momentum — to produce a 0–100 score for every player. Score bands: Peak (80–100), Stable (60–79), Concern (40–59), Crisis (0–39). Each category is weighted by position archetype: Goal Threat (Momentum-driven) and Defensive (Stability-driven). For the full LLM-readable site map, visit /llms.txt or /llms-full.txt.