MacroMind matchup data: real ranked games, not opinions
Kayn vs Sejuani
How often does Kayn beat Sejuani in Jungle?
Kayn into Sejuani in Jungle: 53% observed win rate across 1,074 ranked games.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Kayn ahead by 277 gold.
Kayn at 15:00
- Gold: +277
- CS: +6
- XP: +167
Typical gap to Sejuani, from 1,067 games that reached 15:00.
Does Kayn counter Sejuani?
The count says yes: across 1,074 ranked Jungle games into Sejuani, Kayn takes 53%. That edge is worth playing for. Check the rows below to see how much a gold lead at 10:00 adds, and what a bad start costs Kayn.
Beating Sejuani: the Kayn game plan
A gold lead at 10:00 puts Kayn at 61% across 605 games. Flip the lead and Kayn falls to 44% across 468.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 61% | 605 |
| Behind in gold at 10:00 | 44% | 468 |
| First blood | 59% | 616 |
| +kills at 10:00 | 60% | 444 |
| +CS at 10:00 | 59% | 650 |
| 0 deaths at 10:00 | 68% | 231 |
| 0 deaths at 15:00 | 75% | 76 |
Someone usually dies here around 6:20 in the median game, and level 6 lands near 7:10. Until your spike is online, respect the all-in.
Kayn's Jungle build, with receipts
Into Sejuani specifically, Kayn finishes Voltaic Cyclosword first most often: 55.4% over 175 games of this matchup.
The most-finished Kayn core is Voltaic Cyclosword, Black Cleaver, Death's Dance: 56.0% across 2,384 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Gustwalker Hatchling + Health Potion; the first finished item is usually Voltaic Cyclosword (21,245 games).
Skill plan: Kayn players max Q first and take Q at level 1.