Source: Ranked + player metaPatch: 16.17Window: patchRegion: allRank: emerald_plusQueue: ranked_soloSample: 47Updated 10/28/2026, 3:00:09 PM
Confidence: Medium+1.1% vs 50%47 games
Lane phases
AI heuristicLevels 1–2
Even
Zac and Amumu trade evenly before spikes.
Levels 3–5
Zac edge
Play around ability cooldowns and wave control.
Level 6+
Zac edge
Ultimate timing often swings the next two waves.
Mid / late
Even
Side-wave and vision decide more than the raw lane matchup.
Why?
AI heuristicEven
- Sample win rate for Zac is 51.1% in this matchup.
Treat this as a Even matchup for Zac into Amumu — prioritize cooldown windows and jungle tracking.
Do
- Track summoner spells and ultimate cooldowns before committing.
- Play for wave states that let you crash and reset safely.
Don't
- Don't force extended trades when key abilities are down.
- Don't ignore jungle timers when the lane is volatile.
Matchup build callout
Full builds →Most-played Zac page (Jungle): Conqueror Build · 61.7% WR · 107 games
Skill order: W › E › Q
Keystones (player meta)
Most common keystones when zac faces amumu in lookup-discovered matches.
Conqueror2G100.0%
Patch: 16.17Region: naRank: emerald_plusQueue: ranked_soloSample: 153Updated 10/22/2026, 1:02:15 PM