Vision score as seen in the post-game statistics
Vision Score is a stat that indicates how much vision a player has influenced in the game, including the vision they granted and denied.[1]
Metrics[]
Vision score can be calculated as an estimate through the following:
- Vision Score = (1 point per minute of ward lifetime provided) + (1 point per minute of ward lifetime denied).
This number comes from three main sources:
- Ward Lifetime Provided: Each minute of ward lifetime grants up to 1 point, depending on how effective the ward is. (point are given when a ward is destroyed or survives its whole lifetime)
- Ward Lifetime Denied: Scoring a ward takedown (earned gold from a ward's death) grants 1 point for every minute of lifetime remaining on the ward (permanent wards are worth 1.5 minutes of a remaining lifetime).
- Vision Mechanics: There are a few non-combat utility abilities that will contribute to a champion's total vision score.
- These include
Scryer's Bloom and 
Rift Scuttler's 
Speed Shrine. The former grants a total of 0.5 points per champion revealed by the effect, and the latter grants 1 point once it has lasted its full duration. - Champion abilities that only grant vision (no offensive component) will contribute towards the score. Examples include Ashe's Hawkshot, Kalista's Sentinel, and Quinn's Heightened Senses. These abilities will grant 0.33 points per champion they reveal.
- These include
Ward Lifetime Provided Modifiers[]
An allied ward's point generation can be reduced under certain infractions. The reduction is applied to the score generated within the duration of the infraction, and stacks multiplicatively (e.g. -50% for 6s nets -0.05 points).
- Staleness
- A ward that hasn't seen any interesting units (enemy champions, wards, and epic monsters) in a while will gradually go down in point value, starting at -0% at 60 seconds of staleness and worsening to -50% at 120 seconds of staleness.
- Redundancy
- While a ward is near other allied sources of vision (allied wards, structures, and lane minions), its point value will be reduced, starting at -25% for 1 redundancy and worsening up to -75% for 3+ redundancies. Lane minions don't count as redundant if the ward is in brush.
- Safety
- A ward that's very close to your base can give less score, starting from -0% score around your buff camps and worsening to about -50% score at your base walls.
- Pointlessness
- A ward that's very close to an allied structure or inside your own base will have a -100% modifier to its point value.
- Baseline
- If a ward is quickly killed by enemies, it will still give lifetime score as if it survived a minimum of 20 seconds (0.33 points).
Vision Score sources[]
- Main article: Sight
Trivia[]
- Vision Score can be seen on the end-game screen of Howling Abyss games, even though most of the vision tools are removed in this game mode.