Slow resist, also Slow resistance, is a stat that reduces the strength of multiplicative (= percentage) slows. It affects percentage slows that are enemy-sourced and self-sourced (also called "self-slows" — e.g. Overdrive, Piercing Arrow).

Slow resist is a percentage, and it indicates by how much the slow's percentage strength is reduced.

This is not to be confused with tenacity, which affects the duration of slows.

• Slow resistance strictly stacks multiplicatively.

Increasing Slow Resist[]

Slow resist can be increased from abilities, buffs, items, and runes.

Items[]

• Boots of Swiftness
• Dead Man's Plate

Champion abilities[]

• Urgot's Purge
• Shadow Assassin's Shadow Step (equals total resistance)

Runes[]

• Phase Rush
• Tenacity and slow resist rune shard

Neutral buffs[]

• Cloudbringer's Grace

Slow Immunity[]

Slow immunity is different from 100% slow resist as it prevents slows from being applied in the first place. It prevents the slow from drowsy but does not prevent sleep.

Note that if the slow has a cripple within the same status effect, such as Wither, cleanses that remove slows will also remove the accompanying cripple.

Champion abilities[]

• Aphelios' Sentry
• Heimerdinger's H-28G Evolution Turret
• Master Yi's Highlander
• Nunu's Biggest Snowball Ever!
• Sejuani's Fury of the North
• Skarner's Ixtal's Impact

Statuses[]

• All effects that grant total crowd control immunity also prevent slows from being applied.

Cripple Immunity[]

Cripple immunity prevents cripples from being applied.

Champion abilities[]

• Aphelios' Sentry
• Master Yi's Highlander
• Sejuani's Fury of the North
• Shaco's boxes
• Zyra's plants

Statuses[]

• All effects that grant total crowd control immunity also prevent cripples from being applied.

Formulas[]

These formulas can calculate how much slow resist you have, based on your movement speed and on the slow applied to you.

Formula 1

${\displaystyle Movement\ Speed\leq 220:}$ ${\displaystyle SlowResist=1-({{1-{{FinalMS-110} \over {(BaseMS+BonusMS)\times (1+MSMultiplier)\times 0.5}}})\div {Slow}}}$

Formula 2

${\displaystyle 220\leq Movement\ Speed\leq 415:}$ ${\displaystyle SlowResist=1-({{1-{{FinalMS} \over {(BaseMS+BonusMS)\times (1+MSMultiplier)}}})\div {Slow}}}$

Formula 3

${\displaystyle 415\leq Movement\ Speed\leq 490:}$ ${\displaystyle SlowResist=1-({{1-{{{{FinalMS-475} \over {0.5}}+490} \over {(BaseMS+BonusMS)\times (1+MSMultiplier)}}})\div {Slow}}}$

Formula 4

${\displaystyle Movement\ Speed\geq 490:}$ ${\displaystyle SlowResist=1-({{1-{{{{FinalMS-415} \over {0.8}}+415} \over {(BaseMS+BonusMS)\times (1+MSMultiplier)}}})\div {Slow}}}$

Glossary[]

• Slow Resist is the amount of slow resist you currently have.
• Final MS is your movement speed after being slowed, already considering your slow resist.
• BaseMS is your base movement speed.
• BonusMS is the sum of all additive flat movement speed bonuses.
• MS Multiplier is the sum of all additive percent movement speed bonuses.
• Slow is the strongest slow currently applied on your champion.
• Slow Resist, MS Multiplier, and Slow are percentages (e.g. 50% is 0.5 in the formula).

Notes[]

• Slow resist does not affect abilities that reduce the target's movement speed by / to a flat amount (e.g. Jack in the Box, Shield of Durand, Whimsy).
• Rift Scuttler gains 100% slow resist while not fleeing.
• If a champion with Boots of Swiftness and 400 movement speed is affected by a 40% slow, they will have that slow decreased to 30%.
  • Base reduction of a 40% slow: 400 × (1 − 0.4) = 240, for a total reduction of 160 movement speed.
  • Reduction of a 40% slow with 25% slow resist: 400 × (1 − (0.4 × 0.75)) = 280, for a total reduction of 120 movement speed.

Last updated: February 29, 2024 patch V14.4

• The highest amount of  slow resist obtainable is 100% with Shadow Assassin Kayn.

• The highest amount obtainable below 100% is 93.925% with Urgot.
  • Purge
  • Boots of Swiftness
  • Phase Rush
  • Dead Man's Plate
  • Tenacity and slow resist rune shard
  • Cloudbringer's Grace × 4

Relevant mathematics

1 - ((1 - 0.4) × (1 - 0.25) × (1 - 0.75) × (1 - 0.25) × (1 - 0.1) × (1 - 0.05 × 4)) = 93.925%

Patch History[]

Champion statistics

Offensive	Ability power ·  Attack damage ·  Attack speed ·  Critical strike chance ·  Critical strike damage ·  Armor penetration ·  Magic penetration ·  Life steal ·  Omnivamp ·  Physical vamp ·  True damage
Defensive	Heal and shield power ·  Health ·  Health regeneration ·  Armor ·  Magic resistance ·  Tenacity ·  Slow resist
Utility	Ability haste ·  Energy ·  Energy regeneration ·  Mana ·  Mana regeneration  Movement speed ·  Range
Other	Experience ·  Gold generation