Jax, League of Legends champion
Win Rate
51.4%
Pick Rate
2.7%
Ban Rate
7.9%

Jax Top Runes: Keystone & Shards

Jax S TierFighter
Patch
26.20
Games
3,542
Lane
Top
Tier
All Tiers
Last Updated
Oct 12, 2026 UTC
Methodology
Data Methodology

Best Top Jax runes for LoL Patch 26.20 - Lethal Tempo from the Precision tree with Resolve secondary (50.4% WR, 38.7% pick rate). Jax's optimal primary runes are Lethal Tempo, Triumph, Legend: Alacrity, Last Stand. Secondary tree: Bone Plating, Unflinching.

Jax performs best with Lethal Tempo as the keystone rune from the Precision tree. Jax's optimal primary runes are Lethal Tempo, Triumph, Legend: Alacrity, Last Stand. Jax's secondary rune tree is Resolve with Bone Plating, Unflinching. This rune setup achieves a 50.44% win rate (-1.0% win rate difference) with a 38.7% pick rate across 1,372 Jax games.
50.4%Win Rate
-1.0%WR Diff
38.7%Pick Rate
Lethal TempoLethal Tempo

Attacking an enemy champion grants you [6% Melee || 4% Ranged] Attack Speed for 6 seconds, up to 6. At max stacks, deal [9 - 30 Melee || 6 - 24 Ranged] bonus adaptive damage On-Attack, increased by 1% per 1% Bonus Attack Speed.

TriumphTriumph

Takedowns restore 5% of your missing health, 2.5% of your max health, and grant an additional 20 gold.



'The most dangerous game brings the greatest glory.'
—Noxian Reckoner

Legend: AlacrityLegend: Alacrity

Gain 3% attack speed plus an additional 1.5% for every Legend stack (max 10 stacks).

Earn progress toward Legend stacks for every champion takedown, epic monster takedown, large monster kill, and minion kill.

Last StandLast Stand

Deal 5% - 11% increased damage to champions while you are below 60% health. Max damage gained at 30% health.

Bone PlatingBone Plating

After taking damage from an enemy champion, the next 3 spells or attacks you receive from them deal 30-60 (based on level) less damage.

Duration: 1.5s
Cooldown: 55s

UnflinchingUnflinching

Gain 10 Armor and Magic Resist when crowd controlled and for 2 seconds after.

This alternative Jax rune build uses Grasp of the Undying as the keystone from the Resolve tree. The primary runes are Grasp of the Undying, Demolish, Second Wind, Unflinching. Jax's secondary rune tree is Inspiration with Biscuit Delivery, Cosmic Insight. This setup achieves a 51.19% win rate (-0.2% win rate difference) with a 11.9% pick rate across 420 games.
51.2%Win Rate
-0.2%WR Diff
11.9%Pick Rate
Grasp of the UndyingGrasp of the Undying

Every 4s in combat, your next basic attack on a champion will:

  • Deal bonus magic damage equal to 3.5% of your max health
  • Heal you for 1.3% of your max health
  • Permanently increase your health by 5
    Ranged Champions: Damage, healing, and permanent health gained are 40% effective.

  • DemolishDemolish

    Your third attack against towers deals [85 (+28% max Health) Melee || 50 (+20% max Health) Ranged] bonus physical damage.

    Cooldown: 30s

    Second WindSecond Wind

    After taking damage from an enemy champion, heal for 4% of your missing health over 10s.

    UnflinchingUnflinching

    Gain 10 Armor and Magic Resist when crowd controlled and for 2 seconds after.

    Biscuit DeliveryBiscuit Delivery

    Biscuit Delivery: Gain a Total Biscuit of Everlasting Will every 2 mins, until 6 min.

    Biscuits restore 20 + 2% of your maximum health, increased by up to 100% based on missing Health. Consuming or selling a Biscuit permanently increases your max health by 30.

    Cosmic InsightCosmic Insight

    +18 Summoner Spell Haste
    +10 Item Haste

    These champions share at least 4 runes with Jax's recommended rune builds. use similar keystone and secondary runes, making them good alternatives if you enjoy Jax's playstyle or want to learn champions with familiar rune setups.Yone, Irelia, Fiora, Renekton, Trundle and 5 others

    Every Jax Top Keystone and Secondary Tree (Patch 26.20)

    3,405 games

    Jax Top runs Lethal Tempo in 57% of games, with a 52.4% win rate. Resolve is the usual secondary tree (65%). Standard stat shards: Attack Speed (offense), Adaptive Force (flex), Health Scaling (defense).

    Keystones

    RunePlayersWin RateGames
    Lethal TempoLethal TempoMost played56.8%52.4%1,933
    Grasp of the UndyingGrasp of the Undying23.8%51.4%809
    ConquerorConqueror13.6%46.7%463
    Stormraider's SurgeStormraider's Surge2.9%56.0%100

    Secondary trees

    RunePlayersWin RateGames
    ResolveResolveMost played64.6%50.6%2,200
    InspirationInspiration27.8%53.5%948
    SorcerySorcery3.7%53.6%125
    PrecisionPrecision2.7%49.5%93

    Pick rate is the share of Jax games in this lane that used the rune; options under 40 games are left out. A higher win rate on a rarely picked rune is usually a matchup-specific choice, not a general upgrade.

    Jax Minor Runes by Tree

    Every minor rune Jax players take, grouped by rune tree, with how often it is picked and how often it wins.

    Resolve

    RunePlayersWin RateGames
    UnflinchingUnflinchingMost played72.7%50.1%2,475
    Bone PlatingBone Plating62.2%50.7%2,119
    DemolishDemolish27.0%51.7%921
    Second WindSecond Wind23.6%50.6%805
    OvergrowthOvergrowth12.4%54.8%423
    ConditioningConditioning1.4%60.4%48

    Precision

    RunePlayersWin RateGames
    Legend: AlacrityLegend: AlacrityMost played69.5%50.7%2,368
    TriumphTriumph68.0%51.5%2,315
    Last StandLast Stand67.8%50.9%2,309
    Presence of MindPresence of Mind4.7%50.0%160
    Legend: HasteLegend: Haste3.4%60.0%115
    Coup de GraceCoup de Grace3.2%52.8%108

    Inspiration

    RunePlayersWin RateGames
    Cosmic InsightCosmic InsightMost played24.1%52.7%821
    Biscuit DeliveryBiscuit Delivery22.0%50.6%749
    Triple TonicTriple Tonic3.6%59.7%124
    Magical FootwearMagical Footwear2.4%61.4%83
    Cash BackCash Back1.9%76.2%63
    Jack Of All TradesJack Of All Trades1.6%53.7%54

    Sorcery

    RunePlayersWin RateGames
    TranscendenceTranscendenceMost played4.1%57.1%140
    Gathering StormGathering Storm3.2%56.9%109
    Manaflow BandManaflow Band3.0%47.5%101
    Nimbus CloakNimbus Cloak1.9%53.8%65
    ScorchScorch1.7%52.6%57

    Domination

    RunePlayersWin RateGames
    Sudden ImpactSudden ImpactMost played1.8%50.8%61
    Ultimate HunterUltimate Hunter1.5%48.0%50

    Jax Stat Shards

    Which stat shards Jax players choose in each of the three shard rows, and the win rate of each.

    RunePlayersWin RateGames
    Adaptive Force (flex)Adaptive Force (flex)Most played97.4%51.7%3,318
    Attack Speed (offense)Attack Speed (offense)94.1%51.3%3,203
    Health Scaling (defense)Health Scaling (defense)80.9%51.0%2,753
    Health (defense)Health (defense)12.9%51.9%439
    Tenacity and Slow Resist (defense)Tenacity and Slow Resist (defense)6.3%57.3%213
    Adaptive Force (offense)Adaptive Force (offense)4.8%51.9%162
    Move Speed (flex)Move Speed (flex)1.6%41.5%53
    Ability Haste (offense)Ability Haste (offense)1.2%67.5%40
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    Jax Runes FAQ - Patch 26.20

    What is the best keystone for Jax Top?

    Lethal Tempo: Jax Top takes it in 57% of ranked games and wins 52.4% of 1,933 games. Alternatives: Grasp of the Undying (24%, 51.4%), Conqueror (14%, 46.7%).

    What stat shards should Jax take?

    Most Jax players take Attack Speed (offense), Adaptive Force (flex), Health Scaling (defense) — one from each shard row.

    What are the best Jax runes in patch 26.20?

    The best Jax runes in patch 26.20 use the Precision tree with Lethal Tempo, Triumph, Legend: Alacrity, and Last Stand, and the Resolve tree with Bone Plating and Unflinching. This rune setup achieves a 50.4% win rate with a 38.7% pick rate.

    What is the win rate for Jax's best rune page?

    Jax's best rune page has a 50.4% win rate in patch 26.20, which is -1.0% compared to Jax's average win rate. This rune setup has a 38.7% pick rate among Jax players.

    What keystone should I use on Jax?

    Lethal Tempo from the Precision tree is the best keystone rune for Jax in patch 26.20. This keystone synergizes well with Jax's kit and provides a 50.4% win rate.

    What is Jax's primary rune tree?

    Jax's primary rune tree is Precision. The optimal Precision runes for Jax are Lethal Tempo, Triumph, Legend: Alacrity, and Last Stand, with Lethal Tempo being the keystone of choice.

    What is Jax's secondary rune tree?

    Jax's best secondary rune tree is Resolve. The recommended Resolve runes are Bone Plating and Unflinching, which complement Jax's Precision primary tree.

    What are alternative rune setups for Jax?

    An alternative Jax rune setup uses Grasp of the Undying from the Resolve tree. This alternate build may be preferred in certain matchups or playstyles. Check the alternative rune page above for full details including win rate and pick rate.

    How popular are Jax's runes?

    Jax's top rune page has a 38.7% pick rate in patch 26.20. This indicates that 38.7% of Jax players use the Lethal Tempo setup with Precision and Resolve trees.