Footnote
GuideStart Free
Guide
As of May 2026Footnote Metrics1 min read2 references cited

Philosophy → Weights → PVS — How 4-Axis Scores Reflect Club Identity

Integrating PVS 4 axes (Technical, Tactical, Physical, Mental) is club-philosophy-driven. 'Possession-first' clubs use Technical 0.35, 'physical-first' clubs Physical 0.30 — same player, different clubs, different total PVS. This article covers Phase H + Phase J integration design, 4-axis weight settings, and 6-month tuning guidance.

Weights = Philosophy as Algorithm

Verbal 'possession-first' doesn't translate to evaluation. Converting to 4-axis weights makes PVS computation automatically reflect philosophy.

club_philosophies.evaluation_weights jsonb stores weights: { technical: 0.35, tactical: 0.30, physical: 0.15, mental: 0.20 }. Normalized to sum 1.0. PVS_total = technical × w_t + tactical × w_ta + physical × w_p + mental × w_m.

Example: (75, 70, 65, 80) × (0.35, 0.30, 0.15, 0.20) = 26.25 + 21.0 + 9.75 + 16.0 = 73.0

Philosophy → Weight Mapping

Auto-recommended from philosophy text but ultimately adjusted by reinforcement. 4 canonical patterns shown.

Possession-first

  • Tech 0.35 (ball handling primary)
  • Tac 0.30 (positioning, decision speed)
  • Phy 0.15
  • Men 0.20

Physical-first

  • Tech 0.25
  • Tac 0.20
  • Phy 0.30
  • Men 0.25

Jr Youth development

  • Tech 0.40 (basic technique)
  • Tac 0.15
  • Phy 0.15
  • Men 0.30 (continuity)

Youth → senior promotion judgment

  • Tech 0.30
  • Tac 0.35 (advanced tactics)
  • Phy 0.20
  • Men 0.15

6-Month Tuning

Start with placeholder weights → adjust after 6 months with real data. Validate that PVS-high players are philosophy-fit players.

  1. Are top-5 PVS players really 'philosophy-fit'?
  2. Are low-PVS players who 'feel philosophy-fit' being missed?
  3. Correlation between reinforcement subjective ranking and PVS ranking (target 0.7+)

References

  1. [1] Williams A.M., Reilly T. (2000). “Talent identification and development in soccer” Journal of Sports Sciences.
  2. [2] Vaeyens R., Lenoir M., Williams A.M., Philippaerts R.M. (2008). “Talent identification and development programmes in sport: current models and future directions” Sports Medicine.

Related Articles

Footnote Metrics

Verbalizing Club Philosophy — A 3-Question Framework

2 min read

Footnote Metrics

PVS (Player Value Score) — Complete Guide to Footnote's Composite Player Metric

7 min read

Footnote Metrics

Improving PVS — 30 Concrete Monthly Actions Across 4 Axes

3 min read

Footnote Metrics

fit_score Explained — Club Philosophy × Player Evaluation Vector Inner Product

2 min read

Footnote Metrics

Squad ROI Explained — Football Manager-style Decision Support for J Club Reinforcement

3 min read

Track Your Growth with Footnote

Just record your matches — AI analyzes every 5 games. Visualize growth with PVS Score. All features free during beta.

30-second signup · No credit card required

← Back to Guide

Last updated: 2026-05-18 ・ Footnote Editorial