MacroMind matchup data — real ranked games, not opinions
Jayce vs Master Yi
How often does Jayce beat Master Yi in Jungle?
Jayce into Master Yi in Jungle: 49% observed win rate across 837 ranked games. Counted from real matches, and every number here shows its sample size.
By 15 minutes the median game has Jayce ahead by 376 gold.
Does Jayce counter Master Yi?
Too close for a counter call: Jayce sits at 49% over 837 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 Master Yi: the Jayce game plan
A 300-gold lead at 10:00 puts Jayce at 57% across 534 games. Flip the lead and Jayce falls to 34% across 303.
| The spot | Win rate | Games |
|---|---|---|
| 300 gold up at 10:00 | 57% | 534 |
| 300 gold down at 10:00 | 34% | 303 |
| First blood | 54% | 524 |
| +kills at 10:00 | 59% | 346 |
| +CS at 10:00 | 53% | 494 |
| 0 deaths at 10:00 | 58% | 227 |
| 0 deaths at 15:00 | 75% | 79 |
Someone usually dies here around 6:19 in the median game, and level 6 lands near 6:51. Until your spike is online, respect the all-in.
Jayce's Jungle build, with receipts
Into Master Yi specifically, Jayce finishes Youmuu's Ghostblade first most often: 47.3% over 311 games of this matchup.
The most-finished core in this exact matchup is Youmuu's Ghostblade, Opportunity, Edge of Night: 57.0% across 79 games.
The most-finished Jayce core is Youmuu's Ghostblade, Opportunity, Edge of Night: 52.3% across 3,541 games when all three got done. All matchups, patches 16.1-16.12.
Most games start Scorchclaw Pup + Health Potion; the first finished item is usually Youmuu's Ghostblade (14,088 games).
Skill plan: Jayce players max Q first and take Q at level 1.