- Win Rate
- 46.0%
- Pick Rate
- 1.8%
- Ban Rate
- 4.2%
Rengar vs Kayn
- Patch
- 26.19
- Games
- 3,632
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 10, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Rengar vs Kayn is a decisive matchup in LoL patch 26.19. Kayn wins with a 57.8% win rate (+15.6%) over Rengar based on 90 games. Rengar wins the early laning phase while Kayn scales better into the late game. Below you'll find the best Rengar build, runes, laning stats, and strategies for the Rengar vs Kayn matchup.
Rengar Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Rengar 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 Rengar vs Kayn?
Rengar wins 43.6% of these games. With this many games the true rate is most likely between 36.8% and 50.6% (95% range).
- Expected
- 45.9% From both champions' overall Jungle win rates
- Matchup effect
- −2.3 pts Observed minus expected
- Sample
- 195 games Lane: Jungle
- vs patch 26.18
- −4.6 pts Within normal patch-to-patch noise
Lane: Jungle · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Current data slightly favors Kayn, but the sample is too limited for a strong conclusion: Rengar wins 43.6% of 195 games (95% range 36.8–50.6%).
- Both champions' overall Jungle win rates predict 45.9% for Rengar; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
- Rengar usually wins the lane: 187 gold ahead of Kayn at 15 minutes on average (191 games with a 15-minute snapshot).
- Rengar players pick Triumph much less often against Kayn: 71.0% of their other Jungle games, 57.9% 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 Rengar and Kayn 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 Rengar'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.
Rengar vs Kayn Laning Stats
At 15 minutes
Whole-game averages
Rengar vs Kayn Win Rate by Game Length
Rengar's win rate against Kayn 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: Rengar's results against Kayn in short and long games are within the margin of error of each other.
Rengar vs Kayn 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)RengarRengar gold at 15: +187
- First itemEvenRengar: 0.1 min · Kayn: 0.2 min
- Games under 20 minInsufficient data
- 20–30 min gamesEvenRengar wins 45.8% of 72 games
- 30+ min gamesEvenRengar wins 43.1% of 109 games
What Rengar Changes Against Kayn
Choices Rengar players make noticeably more or less often in this matchup than in their other Jungle games.
TriumphRuneUsually71.0%vs Kayn57.9%−13.0 pts46.9% WR here
ElectrocuteKeystoneUsually23.3%vs Kayn34.4%+11.0 pts38.8% WR here
DominationSecondary treeUsually70.0%vs Kayn59.0%−11.0 pts45.2% WR here
Grisly MementosRuneUsually22.8%vs Kayn32.8%+10.0 pts39.1% WR here
ConquerorKeystoneUsually29.5%vs Kayn19.5%−10.0 pts31.6% WR here
PrecisionSecondary treeUsually23.7%vs Kayn31.8%+8.1 pts40.3% WR here
Ultimate HunterRuneUsually62.9%vs Kayn55.4%−7.5 pts47.2% WR here
SorcerySecondary treeUsually2.2%vs Kayn5.6%+3.4 pts
Best Rengar Build vs Kayn
Usual Rengar build (Jungle)
56.7% win rate · 134 games
Against Kayn
70.0% win rate · 20 games
Limited sample: 20 of 118 games finished this exact core, so treat it as an observation rather than a recommendation.
- Rengar usually completes Gustwalker Hatchling first, at 0.1 min (median of 144 games).
- Kayn usually completes Scorchclaw Pup first, at 0.2 min (median of 93 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 Rengar Runes vs Kayn
Usual Rengar runes (Jungle)
Conqueror
68.0% win rate · 25 games
Against Kayn
Fleet Footwork
68.1% win rate · 47 games
Plan your Rengar 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
Rengar matchup data for League of Legends patch 26.19. The table below shows Rengar'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 Rengar build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other Rengar Matchups
Hardest for Rengar
Easiest for Rengar
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.
Rengar vs Kayn FAQ - Patch 26.19
Who wins Rengar vs Kayn?
Current data slightly favors Kayn, but the sample is too limited for a strong conclusion: Rengar wins 43.6% of 195 games (95% range 36.8–50.6%).
What is Rengar's win rate against Kayn?
Rengar wins 43.6% of 195 Jungle games against Kayn on patch 26.19 (95% range 36.8–50.6%). Based on both champions' overall Jungle win rates, 45.9% would be expected.
Does Rengar counter Kayn?
Not clearly. Rengar wins 43.6% of 195 games against Kayn, and the 95% range (36.8–50.6%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, Rengar or Kayn?
Rengar usually wins the lane: 187 gold ahead of Kayn at 15 minutes on average (191 games with a 15-minute snapshot).
Does Rengar outscale Kayn?
There are too few games of each length to tell yet.
When is Kayn strongest against Rengar?
On current data there is no stage of the game where Kayn is ahead of Rengar beyond the margin of error.
What should Rengar build against Kayn?
The most successful Rengar core against Kayn is Profane Hydra, Edge of Night, Umbral Glaive (70.0% over 20 games).
What runes should Rengar use against Kayn?
Fleet Footwork with Precision and Domination — 68.1% over 47 games against Kayn. The biggest change against Kayn: Triumph (71.0% usually, 57.9% here).