LeBlancvs Kassadin
LeBlanc vs Kassadin is a decisive matchup in LoL patch 26.19. LeBlanc wins with a 53.9% win rate (+7.7%) over Kassadin based on 26 games. LeBlanc holds the advantage in both the early and late game. Below you'll find the best LeBlanc build, runes, laning stats, and strategies for the LeBlanc vs Kassadin matchup.
LeBlanc Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how LeBlanc 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 LeBlanc vs Kassadin?
LeBlanc wins 53.8% of these games. With this many games the true rate is most likely between 40.5% and 66.7% (95% range).
- Expected
- 50.3% From both champions' overall Mid win rates
- Matchup effect
- +3.6 pts Observed minus expected
- Sample
- 52 games Lane: Mid
- vs patch 26.18
- +15.7 pts Within normal patch-to-patch noise
Lane: Mid · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28
Key takeaways
- Current data slightly favors LeBlanc, but the sample is too limited for a strong conclusion: LeBlanc wins 53.8% of 52 games (95% range 40.5–66.7%).
- Both champions' overall Mid win rates predict 50.3% for LeBlanc; 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 274, within the margin of error (52 games).
- LeBlanc players pick Grisly Mementos much less often against Kassadin: 91.2% of their other Mid games, 82.7% 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 LeBlanc and Kassadin 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 LeBlanc'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.
LeBlanc vs Kassadin Laning Stats
At 15 minutes
Whole-game averages
LeBlanc vs Kassadin Win Rate by Game Length
LeBlanc's win rate against Kassadin 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: LeBlanc's results against Kassadin in short and long games are within the margin of error of each other.
LeBlanc vs Kassadin 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)EvenLeBlanc gold at 15: +274
- First itemLeBlancLeBlanc: 10.8 min · Kassadin: 11.9 min
- Games under 20 minInsufficient data
- 20–30 min gamesInsufficient data
- 30+ min gamesInsufficient data
What LeBlanc Changes Against Kassadin
Choices LeBlanc players make noticeably more or less often in this matchup than in their other Mid games.
Grisly MementosRuneUsually91.2%vs Kassadin82.7%−8.5 pts51.2% WR here
Sudden ImpactRuneUsually97.2%vs Kassadin90.4%−6.8 pts53.2% WR here
ElectrocuteKeystoneUsually98.3%vs Kassadin92.3%−6.0 pts54.2% WR here
Absolute FocusRuneUsually2.6%vs Kassadin7.7%+5.1 pts
InspirationSecondary treeUsually0.8%vs Kassadin5.8%+5.0 pts
First StrikeKeystoneUsuallyunder 0.5%vs Kassadin3.8%+3.8 pts
Best LeBlanc Build vs Kassadin
Usual LeBlanc build (Mid)
73.8% win rate · 103 games
Against Kassadin
Not enough matchup-specific build data: only 7 of 31 LeBlanc games against Kassadin carried a complete build, which is too few to recommend an item path from. Use LeBlanc's standard build instead.
- LeBlanc usually completes Luden's Echo first, at 10.8 min (median of 42 games).
- Kassadin usually completes Rod of Ages first, at 11.9 min (median of 38 games).
- Skill priority: W > Q > 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 LeBlanc Runes vs Kassadin
Usual LeBlanc runes (Mid)
Electrocute
71.4% win rate · 21 games
Against Kassadin
Too few games for a matchup-specific rune page yet — use the usual page.
Plan your LeBlanc 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
LeBlanc matchup data for League of Legends patch 26.19. The table below shows LeBlanc'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 LeBlanc build, runes, laning stats, and early vs late game analysis for that specific matchup.
Other LeBlanc Matchups
Hardest for LeBlanc
Easiest for LeBlanc
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.
LeBlanc vs Kassadin FAQ - Patch 26.19
Who wins LeBlanc vs Kassadin?
Current data slightly favors LeBlanc, but the sample is too limited for a strong conclusion: LeBlanc wins 53.8% of 52 games (95% range 40.5–66.7%).
What is LeBlanc's win rate against Kassadin?
LeBlanc wins 53.8% of 52 Mid games against Kassadin on patch 26.19 (95% range 40.5–66.7%). Based on both champions' overall Mid win rates, 50.3% would be expected.
Does LeBlanc counter Kassadin?
Not clearly. LeBlanc wins 53.8% of 52 games against Kassadin, and the 95% range (40.5–66.7%) includes 50%, so neither champion reliably counters the other on current data.
Who wins lane, LeBlanc or Kassadin?
Neither side reliably wins the lane: the average gold difference at 15 minutes is 274, within the margin of error (52 games).
Does LeBlanc outscale Kassadin?
There are too few games of each length to tell yet.
When is Kassadin strongest against LeBlanc?
On current data there is no stage of the game where Kassadin is ahead of LeBlanc beyond the margin of error.
What should LeBlanc build against Kassadin?
There are not enough games for a matchup-specific core, so use LeBlanc's usual Mid core: Luden's Echo, Shadowflame, Mejai's Soulstealer.
What runes should LeBlanc use against Kassadin?
Use LeBlanc's usual Electrocute page (Domination + Sorcery); there are too few games for a matchup-specific page. The biggest change against Kassadin: Grisly Mementos (91.2% usually, 82.7% here).