Aatroxvs Sion
Aatrox vs Sion is a moderate matchup in LoL patch 26.19. Sion wins with a 51.2% win rate (+2.3%) over Aatrox based on 43 games. Aatrox wins the early laning phase while Sion scales better into the late game. Below you'll find the best Aatrox build, runes, laning stats, and strategies for the Aatrox vs Sion matchup.
Aatrox Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Aatrox performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.
Who wins Aatrox vs Sion?
Aatrox wins 53.1% of these games. With this many games the true rate is most likely between 41.1% and 64.8% (95% range).
- Expected
- 50.8% From both champions' overall Top win rates
- Matchup effect
- +2.3 pts Observed minus expected
- Sample
- 64 games Lane: Top
- vs patch 26.18
- — Not enough games on both patches
Lane: Top · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Current data slightly favors Aatrox, but the sample is too limited for a strong conclusion: Aatrox wins 53.1% of 64 games (95% range 41.1–64.8%).
- Both champions' overall Top win rates predict 50.8% for Aatrox; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Aatrox usually wins the lane: 1,200 gold ahead of Sion at 15 minutes on average (63 games with a 15-minute snapshot).
- Aatrox players pick Flash + Teleport far more often against Sion: 14.9% of their other Top games, 37.5% here.
How we calculate this
Games: ranked Solo/Duo and Flex games on the North America server from the patch shown. Remakes (games under 5 minutes) are excluded.
A game only counts when Aatrox and Sion played the same position on opposite teams, so roaming, lane swaps within a team or a champion merely being in the same game never count as this matchup.
The 95% range is a Wilson score interval. Confidence comes from how wide that range is: within ±3 points is very high, ±5 high, ±8 moderate, anything wider low. Below 20 games a matchup is not classified at all.
Expected win rate combines both champions’ win rates in this lane (same games and filters) with the log5 formula: E = A(1−B) / (A(1−B) + B(1−A)). Matchup effect = observed − expected.
"What changes" compares Aatrox's choices in this matchup with the same champion's other games in the same lane, and lists a change only when it is at least 3 points and statistically significant (two-proportion z-test, |z| ≥ 2, 20+ games).
Results are not split by rank: the sample per rank is too small for honest per-rank matchup numbers.
Aatrox vs Sion Laning Stats
At 15 minutes
Whole-game averages
Aatrox vs Sion Win Rate by Game Length
Aatrox's win rate against Sion by game length. The dot is the win rate, the bar its 95% range and the dashed line the champion's usual win rate at that length. Lengths with fewer than 25 games are left blank.
No game length stands out: Aatrox's results against Sion in short and long games are within the margin of error of each other.
Aatrox vs Sion Power Spikes
Who is ahead at each stage, measured from these games. A stage reads "Even" when the difference is inside the margin of error, and "Insufficient data" when there are too few games to tell.
- Lane (15 min)AatroxAatrox gold at 15: +1,200
- First itemAatroxAatrox: 10.3 min · Sion: 15.0 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Aatrox Changes Against Sion
Choices Aatrox players make noticeably more or less often in this matchup than in their other Top games.
Flash + TeleportSummoner spellsUsually14.9%vs Sion37.5%+22.6 pts50.0% WR here
Black CleaverItemUsually23.0%vs Sion45.3%+22.3 pts44.8% WR here
Flash + IgniteSummoner spellsUsually81.5%vs Sion60.9%−20.6 pts56.4% WR here
Death's DanceItemUsually33.7%vs Sion48.4%+14.7 pts58.1% WR here
OvergrowthRuneUsually10.5%vs Sion21.9%+11.4 pts
Legend: AlacrityRuneUsually10.4%vs Sion18.8%+8.4 pts
ConquerorKeystoneUsually92.4%vs Sion100.0%+7.6 pts53.1% WR here
Serpent's FangItemUsually2.9%vs Sion9.4%+6.5 pts
Best Aatrox Build vs Sion
Usual Aatrox build (Top)
90.9% win rate · 11 games
Against Sion
Not enough matchup-specific build data: only 5 of 43 Aatrox games against Sion carried a complete build, which is too few to recommend an item path from. Use Aatrox's standard build instead.
- Aatrox usually completes Eclipse first, at 10.3 min (median of 33 games).
- Sion usually completes Heartsteel first, at 15.0 min (median of 31 games).
- Skill priority: Q > E > W — the same as usual.
Builds are ranked by the lower edge of their win rate range, not the raw win rate, so a build seen in a handful of wins never outranks a proven one.
Best Aatrox Runes vs Sion
Usual Aatrox runes (Top)
Conqueror
67.6% win rate · 37 games
Against Sion
Conqueror
45.8% win rate · 24 games
Plan your Aatrox draft in Draft Lab
Draft Lab lays out both teams lane by lane with live matchup win rates, damage profiles and game-phase lean, and suggests picks and bans from current meta data.
- Full 5v5 draft board
- Lane matchup win rates
- Pick and ban suggestions
Aatrox matchup data for League of Legends patch 26.19. The table below shows Aatrox's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Aatrox build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Aatrox Matchups
Hardest for Aatrox
Easiest for Aatrox
Win rate and games for each matchup. Lists are ranked by the edge of the 95% range so small samples cannot top them; matchups with at least 50 games only.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Aatrox vs Sion FAQ - Patch 26.19
Who wins Aatrox vs Sion?
Current data slightly favors Aatrox, but the sample is too limited for a strong conclusion: Aatrox wins 53.1% of 64 games (95% range 41.1–64.8%).
What is Aatrox's win rate against Sion?
Aatrox wins 53.1% of 64 Top games against Sion on patch 26.19 (95% range 41.1–64.8%). Based on both champions' overall Top win rates, 50.8% would be expected.
Does Aatrox counter Sion?
Not clearly. Aatrox wins 53.1% of 64 games against Sion, and the 95% range (41.1–64.8%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Aatrox or Sion?
Aatrox usually wins the lane: 1,200 gold ahead of Sion at 15 minutes on average (63 games with a 15-minute snapshot).
Does Aatrox outscale Sion?
There are too few games of each length to tell yet.
When is Sion strongest against Aatrox?
On current data there is no stage of the game where Sion is ahead of Aatrox beyond the margin of error.
What should Aatrox build against Sion?
There are not enough games for a matchup-specific core, so use Aatrox's usual Top core: Sundered Sky, Death's Dance, Maw of Malmortius. The biggest change against Sion: Black Cleaver (23.0% usually, 45.3% here).
What runes should Aatrox use against Sion?
Conqueror with Precision and Resolve — 45.8% over 24 games against Sion. The biggest change against Sion: Flash + Teleport (14.9% usually, 37.5% here).