CIS = (WAR_norm × 0.45)
+ (TOI_norm × 0.28)
+ (PP_TOI_norm × 0.17)
+ (PosWeight × 0.10)
All inputs are normalized against absolute NHL benchmarks (e.g., 5.0 WAR, 25m TOI, 4m PP).
WAR and TOI are the dominant drivers. Position weight adds a structural floor
for goalies and penalises depth players even with good raw numbers.
| Metric | Source | Weight | Rationale |
|---|
| WAR (Wins Above Replacement) | hockeystats.com | 0.45 | Best single holistic metric |
| TOI avg/game | NHL Web API | 0.28 | Direct proxy for role on team |
| PP Time on Ice | NHL Web API | 0.17 | Power play impact on totals |
| Position Weight | Roster data | 0.10 | Structural floor/ceiling by role |
| Tier | CIS Range | Typical players | Line impact |
|---|
| 🔴 CRITICAL | ≥ 0.75 | Starter G, franchise C/LW | 0.5–2.0 puck line shift |
| 🟠 HIGH | 0.50–0.74 | Top-6 F, Top-4 D, PP1 | ML + total move |
| 🟡 MEDIUM | 0.30–0.49 | 2nd line, 3rd pair D | Moderate, close games only |
| 🟢 LOW | < 0.30 | 3rd–4th line, scratches | Negligible |