- Win Rate
- 50.1%
- Pick Rate
- 1.9%
- Ban Rate
- 5.7%
Heimerdinger vs Sion
- Patch
- 26.19
- Games
- 3,743
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 10, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Heimerdinger vs Sion is a decisive matchup in LoL patch 26.19. Heimerdinger wins with a 64.7% win rate (+29.4%) over Sion based on 17 games. Sion wins the early laning phase while Heimerdinger scales better into the late game. Below you'll find the best Heimerdinger build, runes, laning stats, and strategies for the Heimerdinger vs Sion matchup.
Heimerdinger Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Heimerdinger 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 Heimerdinger vs Sion?
Heimerdinger wins 53.8% of these games. With this many games the true rate is most likely between 38.6% and 68.4% (95% range).
- Expected
- 48.8% From both champions' overall Top win rates
- Matchup effect
- +5.1 pts Observed minus expected
- Sample
- 39 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 Heimerdinger, but the sample is too limited for a strong conclusion: Heimerdinger wins 53.8% of 39 games (95% range 38.6–68.4%).
- Both champions' overall Top win rates predict 48.8% for Heimerdinger; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Neither side reliably wins the lane: the average gold difference at 15 minutes is 318, within the margin of error (38 games).
- Heimerdinger players pick Exhaust + Ignite far more often against Sion: 1.6% of their other Top games, 7.7% 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 Heimerdinger 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 Heimerdinger'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.
Heimerdinger vs Sion Laning Stats
At 15 minutes
Whole-game averages
Heimerdinger vs Sion Win Rate by Game Length
Heimerdinger'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: Heimerdinger's results against Sion in short and long games are within the margin of error of each other.
Heimerdinger 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)EvenHeimerdinger gold at 15: +318
- First itemInsufficient data
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Heimerdinger Changes Against Sion
Choices Heimerdinger players make noticeably more or less often in this matchup than in their other Top games.
Exhaust + IgniteSummoner spellsUsually1.6%vs Sion7.7%+6.1 pts
Health Scaling (flex)Stat shardUsuallyunder 0.5%vs Sion5.1%+5.1 pts- E > Q > Wthe E > Q > W skill orderSkill priorityUsuallyunder 0.5%vs Sion5.1%+5.1 pts
ElectrocuteKeystoneUsually1.3%vs Sion5.1%+3.8 pts
Best Heimerdinger Build vs Sion
Usual Heimerdinger build (Top)
64.0% win rate · 50 games
Against Sion
Not enough matchup-specific build data: only 3 of 21 Heimerdinger games against Sion carried a complete build, which is too few to recommend an item path from. Use Heimerdinger's standard build instead.
- Sion usually completes Hollow Radiance first, at 12.2 min (median of 28 games).
- Skill priority: Q > W > E — 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 Heimerdinger Runes vs Sion
Usual Heimerdinger runes (Top)
Conqueror
50.0% win rate · 1,131 games
Against Sion
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Heimerdinger 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
Heimerdinger matchup data for League of Legends patch 26.19. The table below shows Heimerdinger'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 Heimerdinger build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Heimerdinger Matchups
Hardest for Heimerdinger
Easiest for Heimerdinger
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.
Heimerdinger vs Sion FAQ - Patch 26.19
Who wins Heimerdinger vs Sion?
Current data slightly favors Heimerdinger, but the sample is too limited for a strong conclusion: Heimerdinger wins 53.8% of 39 games (95% range 38.6–68.4%).
What is Heimerdinger's win rate against Sion?
Heimerdinger wins 53.8% of 39 Top games against Sion on patch 26.19 (95% range 38.6–68.4%). Based on both champions' overall Top win rates, 48.8% would be expected.
Does Heimerdinger counter Sion?
Not clearly. Heimerdinger wins 53.8% of 39 games against Sion, and the 95% range (38.6–68.4%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Heimerdinger or Sion?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 318, within the margin of error (38 games).
Does Heimerdinger outscale Sion?
There are too few games of each length to tell yet.
When is Sion strongest against Heimerdinger?
On current data there is no stage of the game where Sion is ahead of Heimerdinger beyond the margin of error.
What should Heimerdinger build against Sion?
There are not enough games for a matchup-specific core, so use Heimerdinger's usual Top core: Zhonya's Hourglass, Rylai's Crystal Scepter, Blackfire Torch.
What runes should Heimerdinger use against Sion?
Use Heimerdinger's usual Conqueror page (Precision + Sorcery); there are too few games for a matchup-specific page. The biggest change against Sion: Exhaust + Ignite (1.6% usually, 7.7% here).