How Solo Skill Rating works
SSR measures individual contribution. It uses only statistics published by the official Wargaming API, and it is deliberately hostile to metrics that reward platooning or tier selection.
1. Per-vehicle normalisation
Every tank you play is scored against expected values for that exact vehicle — damage, frags, spotting, win rate, survival and hit ratio. Farming a strong tier VIII premium does not inflate your score, because the bar rises with the vehicle.
2. Expected values
Expected values are aggregated from all tracked players on TankSkill. When a vehicle has fewer than 200 tracked battles, a tier power curve is used instead until real data accumulates.
3. Sub-scores
Firepower (damage output), Accuracy (hit ratio and penetration efficiency), Carry (damage and frags relative to expected), Support (spotting, tracking assistance and defence) and Survival (survival rate weighted by class role). Each is a 0–100 score.
4. Battle gating and consistency
Vehicle scores are weighted by battle count, with a per-vehicle cap so one ground tank cannot be the whole rating. A consistency factor removes points when the score leans on a few standout vehicles, and a tier factor discounts ratings farmed in low tiers. Career battle count never scales, caps or weights SSR — every account, large or small, gets the same skill rating. Battle count is only an eligibility rule, and that rule is self-adjusting: the required number of career battles is recalculated from the battle-count distribution of the current player pool, so a small sample cannot sit above established players.
5. Self-adjusting rank mapping
The final 0–100 SSR maps onto eleven rank tiers, from Base 5 through Ascendant. A rank is defined by the share of the ladder it represents, not by a fixed number: the SSR required for each tier is recalculated from the live skill distribution whenever players are added or refreshed, so ranks always describe where you stand against the current population. SSR itself is never altered by this — only the requirements move.