Zac vs Sion — Top Lane Matchup Guide

How to win lane as Zac against Sion · 50.89% win rate (1,468 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: The numbers lean slightly Zac (50.89% win rate), even though Sion pressures 4 of the 7 stage windows — convert your windows below and the stats swing your way.

At a glance

Dodge his Q — E-knock him up, out-sustain early.

Track: Sion's Q — Decimating Smash (10–6s cooldown). Charged = knockup. Dodge it.

Do

Dodge his charged Q
E-knock him up
Pick up blobs to sustain

Don't

Eat a full Q stun
Fight into his W shield
Fall behind in scaling

Runes & build vs Sion

Start: Doran's Shield + Health Potion
First back: Executioner's Calling (≈800g) — cuts his healing
First item: Heartsteel (HP feeds everything)
Then: Spirit Visage / Thornmail
Boots: Plated Steelcaps
Runes: Grasp of the Undying (Resolve): Demolish, Second Wind, Overgrowth · Precision: Triumph, Legend: Haste · Shards: Health Scaling, Adaptive Force, Health

Favour timeline — the windows in Zac's game plan

Read from Zac's seat: which stage windows this plan plays for against Sion.

This is Zac's own plan; across 1,468 pooled games the lane is leaning Zac.

Stage	Favoured	Why
Level 1	Sion	Level 1 Sion has one spell; the Q wind-up tells.
Level 2	Sion	At 2 Zac's W %HP chip out-paces Sion's 10s Q cycle.
Level 3	Sion	Level 3 Zac's E engage opens on Sion's slow Q wind-up.
Levels 4-5	Even / skill	By 4 it evens — Zac can dodge Q and trade with W.
Level 6	Even / skill	At 5 both tanks stalemate with no solo kill.
First item	Even / skill	First item, Sion's stacked HP makes Zac's W hurt.
Two+ items	Sion	Late, Sion's R-Q chain and his max-HP-scaling revive win.

How to beat Sion as Zac: the early game

Level 1 is Sion's — respect the charged Q. From 2 your W chips a percentage of his health pool and blobs pay for it, and his 10s Q is the only thing punishing you, so trade the moment it is spent.

Hardest and easiest matchups for Zac in top lane

Pooled Emerald+ win rates from Zac's side, sampled July 2026.

Hardest

Zac vs Cassiopeia — 35.38% win rate
Zac vs Singed — 40.9% win rate
Zac vs Zaahen — 43.23% win rate

Easiest

Zac vs Maokai — 65.75% win rate
Zac vs Mel — 59.83% win rate
Zac vs Sejuani — 59.76% win rate

Read the rest of this matchup

The full Zac vs Sion report continues with the mid-game plan, the late-game and teamfight plan, every power spike to play around, and the win conditions for both sides — plus cooldown tracking and the live enemy-jungle tracker inside the app.

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Common questions

Who wins Zac vs Sion in top lane?

Zac, slightly — a 50.89% win rate edge over 1,468 games; execution can flip it.

Is Zac vs Sion a skill matchup?

Mostly — Zac has a small statistical edge (50.89% win rate), but execution decides this lane far more than the pick does.

Does Zac counter Sion?

Not a hard counter — Zac has a slight edge (50.89% win rate), and play quality decides the rest.

What runes does Zac take vs Sion?

Zac takes Grasp of the Undying on the Resolve tree with Demolish, Second Wind and Overgrowth, and Precision secondary (Triumph and Legend: Haste) vs Sion.

What should Zac build vs Sion?

Start Doran's Shield + Health Potion and back for Executioner's Calling (≈800g) — cuts his healing. Build Heartsteel (HP feeds everything) first, then Spirit Visage / Thornmail, with Plated Steelcaps.

More Zac top lane matchups: vs Sett · vs Shen · vs Singed · vs Swain · vs Sylas · vs Tahm Kench