MacroMind matchup data — real ranked games, not opinions
Jayce vs Heimerdinger
How often does Jayce beat Heimerdinger in Top?
Jayce into Heimerdinger in Top: 55% observed win rate across 291 ranked games. Counted from real matches, and every number here shows its sample size.
By 15 minutes the median game has Jayce ahead by 282 gold.
Does Jayce counter Heimerdinger?
Too close for a counter call: Jayce sits at 55% over 291 games, inside the noise band. On this sample neither pick counters the other — the swing lives in the conditions below, so play the side you know better.
Beating Heimerdinger: the Jayce game plan
A 300-gold lead at 10:00 puts Jayce at 61% across 163 games. Flip the lead and Jayce falls to 47% across 128.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 61% | 163 |
| 300 gold down at 10:00 | 47% | 128 |
| First blood | 62% | 139 |
| +kills at 10:00 | 61% | 114 |
| +CS at 10:00 | 61% | 152 |
| 0 deaths at 10:00 | 57% | 70 |
Someone usually dies here around 6:09 in the median game, and level 6 lands near 5:26. Until your spike is online, respect the all-in.
Jayce's Top build, with receipts
Into Heimerdinger specifically, Jayce finishes Youmuu's Ghostblade first most often: 40.8% over 71 games of this matchup.
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 16.1-16.12.
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.