- Win Rate
- 48.3%
- Pick Rate
- 2.2%
- Ban Rate
- 1.2%
Trundle vs Sejuani
- Patch
- 26.19
- Games
- 2,024
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 4, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Trundle vs Sejuani is a decisive matchup in LoL patch 26.19. Sejuani wins with a 54.5% win rate (+9.1%) over Trundle based on 22 games. Trundle wins the early laning phase while Sejuani scales better into the late game. Below you'll find the best Trundle build, runes, laning stats, and strategies for the Trundle vs Sejuani matchup.
Trundle Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Trundle 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 Trundle vs Sejuani?
Trundle wins 53.7% of these games. With this many games the true rate is most likely between 38.7% and 67.9% (95% range).
- Expected
- 50.4% From both champions' overall Jungle win rates
- Matchup effect
- +3.3 pts Observed minus expected
- Sample
- 41 games Lane: Jungle
- vs patch 26.18
- — Not enough games on both patches
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
They also met in another lane (Top): 3 games, Trundle won 0.0%.
Key takeaways
- Current data slightly favors Trundle, but the sample is too limited for a strong conclusion: Trundle wins 53.7% of 41 games (95% range 38.7–67.9%).
- Both champions' overall Jungle win rates predict 50.4% for Trundle; 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 154, within the margin of error (41 games).
- Trundle players pick Gustwalker Hatchling far more often against Sejuani: 10.6% of their other Jungle games, 22.0% 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 Trundle and Sejuani 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 Trundle'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.
Trundle vs Sejuani Laning Stats
At 15 minutes
Whole-game averages
Trundle vs Sejuani Win Rate by Game Length
Trundle's win rate against Sejuani 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: Trundle's results against Sejuani in short and long games are within the margin of error of each other.
Trundle vs Sejuani 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)EvenTrundle gold at 15: +154
- First itemEvenTrundle: 0.2 min · Sejuani: 0.2 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What Trundle Changes Against Sejuani
Choices Trundle players make noticeably more or less often in this matchup than in their other Jungle games.
Gustwalker HatchlingStarting itemsUsually10.6%vs Sejuani22.0%+11.3 pts
Scorchclaw Pup + Health Potion + Stealth Ward + Oracle LensStarting itemsUsually0.5%vs Sejuani4.9%+4.4 pts
Kaenic RookernItemUsually0.8%vs Sejuani4.9%+4.0 pts
Best Trundle Build vs Sejuani
Usual Trundle build (Jungle)
76.2% win rate · 21 games
Against Sejuani
Not enough matchup-specific build data: only 5 of 25 Trundle games against Sejuani carried a complete build, which is too few to recommend an item path from. Use Trundle's standard build instead.
- Trundle usually completes Gustwalker Hatchling first, at 0.2 min (median of 26 games).
- Sejuani usually completes Mosstomper Seedling first, at 0.2 min (median of 27 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 Trundle Runes vs Sejuani
Usual Trundle runes (Jungle)
Press the Attack
54.3% win rate · 352 games
Against Sejuani
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your Trundle 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
Trundle matchup data for League of Legends patch 26.19. The table below shows Trundle'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 Trundle build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Trundle Matchups
Hardest for Trundle
Easiest for Trundle
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.
Trundle vs Sejuani FAQ - Patch 26.19
Who wins Trundle vs Sejuani?
Current data slightly favors Trundle, but the sample is too limited for a strong conclusion: Trundle wins 53.7% of 41 games (95% range 38.7–67.9%).
What is Trundle's win rate against Sejuani?
Trundle wins 53.7% of 41 Jungle games against Sejuani on patch 26.19 (95% range 38.7–67.9%). Based on both champions' overall Jungle win rates, 50.4% would be expected.
Does Trundle counter Sejuani?
Not clearly. Trundle wins 53.7% of 41 games against Sejuani, and the 95% range (38.7–67.9%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Trundle or Sejuani?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 154, within the margin of error (41 games).
Does Trundle outscale Sejuani?
There are too few games of each length to tell yet.
When is Sejuani strongest against Trundle?
On current data there is no stage of the game where Sejuani is ahead of Trundle beyond the margin of error.
What should Trundle build against Sejuani?
There are not enough games for a matchup-specific core, so use Trundle's usual Jungle core: Titanic Hydra, Blade of The Ruined King, Trinity Force. The biggest change against Sejuani: Gustwalker Hatchling (10.6% usually, 22.0% here).
What runes should Trundle use against Sejuani?
Use Trundle's usual Press the Attack page (Precision + Inspiration); there are too few games for a matchup-specific page.