MacroMind matchup data: real ranked games, not opinions
Jayce vs Sion
What is Jayce's win rate vs Sion?
In Top, Jayce wins 45% against Sion across 1,661 observed 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 Jayce behind by 5 gold.
Jayce at 15:00
- Gold: -5
- CS: +1
- XP: -250
Typical gap to Sion, from 1,655 games that reached 15:00.
Does Jayce counter Sion?
No, it runs the other way. Sion takes 55% of 1,661 ranked Top games. Jayce can still win it. The rows below show the spots that flip it, so plan your first recall and your trades around them, and play the lane for one of those spots rather than for kills.
How to beat Sion as Jayce
When Jayce is ahead in gold at 10:00, this matchup runs 50% over 934 games; behind, it drops to 39% over 727.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 50% | 934 |
| Behind in gold at 10:00 | 39% | 727 |
| First blood | 49% | 870 |
| +kills at 10:00 | 51% | 706 |
| +CS at 10:00 | 47% | 948 |
| 0 deaths at 10:00 | 52% | 306 |
| 0 deaths at 15:00 | 58% | 116 |
The median first death in this lane comes at 5:05; the level 6 spike lands around 5:25. Respect the all-in window until your spike is online.
What does Jayce build in Top?
Into Sion specifically, Jayce finishes Eclipse first most often: 44.0% over 248 games of this matchup.
The most-finished core in this exact matchup is Youmuu's Ghostblade, Manamune, Serylda's Grudge: 43.4% across 53 games.
The most-finished Jayce core is Youmuu's Ghostblade, Manamune, Serylda's Grudge: 55.0% across 2,411 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Blade + Health Potion; the first finished item is usually Youmuu's Ghostblade (10,943 games).
Skill plan: Jayce players max Q first and take Q at level 1.