The champions that counter Jax hardest in top lane are Garen (42.21%), Quinn (42.26%) and Poppy (43.51%) — those are Jax's own pooled win rates. The easiest matchups are Irelia (59.03%), Karma (58.22%) and Mel (58.1%).
71 researched matchup guides for Jax in top lane, most-played first. Win rates are Jax's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Jax vs Garen | 42.21% | 7,987 | Garen favoured |
| Jax vs Yone | 51.01% | 5,809 | Leans Jax |
| Jax vs Darius | 50.01% | 4,543 | Even |
| Jax vs Aatrox | 50.33% | 3,888 | Even |
| Jax vs Graves | 50.58% | 3,731 | Even |
| Jax vs Renekton | 50.49% | 3,266 | Even |
| Jax vs Nautilus | 53.12% | 3,257 | Leans Jax |
| Jax vs Sett | 49.08% | 2,950 | Leans Sett |
| Jax vs Tryndamere | 49.91% | 2,925 | Even |
| Jax vs Sion | 45.68% | 2,791 | Leans Sion |
| Jax vs Zaahen | 51.35% | 2,668 | Leans Jax |
| Jax vs Dr. Mundo | 43.95% | 2,580 | Dr. Mundo favoured |
| Jax vs Sylas | 50.68% | 2,557 | Even |
| Jax vs Lucian | 52.32% | 2,544 | Leans Jax |
| Jax vs Yorick | 50.48% | 2,415 | Even |
| Jax vs Shen | 45.93% | 2,356 | Leans Shen |
| Jax vs Yasuo | 53.63% | 2,247 | Leans Jax |
| Jax vs Riven | 48.18% | 2,121 | Leans Riven |
| Jax vs Pantheon | 44.57% | 2,073 | Pantheon favoured |
| Jax vs Volibear | 55.64% | 1,995 | Jax favoured |
| Jax vs Ornn | 45.93% | 1,953 | Leans Ornn |
| Jax vs Olaf | 50.03% | 1,903 | Even |
| Jax vs Malphite | 49.46% | 1,860 | Even |
| Jax vs K'Sante | 46.49% | 1,764 | Leans K'Sante |
| Jax vs Irelia | 59.03% | 1,733 | Jax favoured |
| Jax vs Singed | 44.38% | 1,717 | Singed favoured |
| Jax vs Illaoi | 44.89% | 1,635 | Illaoi favoured |
| Jax vs Vayne | 52.18% | 1,539 | Leans Jax |
| Jax vs Wukong | 49.64% | 1,515 | Even |
| Jax vs Akali | 47.23% | 1,507 | Leans Akali |
| Jax vs Gangplank | 49.76% | 1,473 | Even |
| Jax vs Vladimir | 44.99% | 1,398 | Vladimir favoured |
| Jax vs Jayce | 46.71% | 1,368 | Leans Jayce |
| Jax vs Mordekaiser | 55.17% | 1,345 | Jax favoured |
| Jax vs Galio | 49.81% | 1,319 | Even |
| Jax vs Locke | 54.8% | 1,303 | Leans Jax |
| Jax vs Urgot | 46.44% | 1,292 | Leans Urgot |
| Jax vs Rumble | 49.26% | 1,285 | Even |
| Jax vs Gragas | 49.25% | 1,273 | Leans Gragas |
| Jax vs Warwick | 51.4% | 1,140 | Leans Jax |
| Jax vs Fiora | 51.76% | 1,080 | Leans Jax |
| Jax vs Poppy | 43.51% | 1,078 | Poppy favoured |
| Jax vs Camille | 51.83% | 928 | Leans Jax |
| Jax vs Tahm Kench | 44.8% | 904 | Tahm Kench favoured |
| Jax vs Mel | 58.1% | 895 | Jax favoured |
| Jax vs Teemo | 50.9% | 890 | Leans Jax |
| Jax vs Kayle | 50.41% | 853 | Even |
| Jax vs Ryze | 54.17% | 827 | Leans Jax |
| Jax vs Akshan | 53.21% | 810 | Leans Jax |
| Jax vs Gnar | 51.31% | 803 | Leans Jax |
| Jax vs Aurora | 53.32% | 799 | Leans Jax |
| Jax vs Kassadin | 50.78% | 768 | Leans Jax |
| Jax vs Ambessa | 51.78% | 757 | Leans Jax |
| Jax vs Nasus | 45.97% | 720 | Leans Nasus |
| Jax vs Swain | 54.21% | 712 | Leans Jax |
| Jax vs Lillia | 51.86% | 700 | Leans Jax |
| Jax vs Gwen | 55.36% | 690 | Jax favoured |
| Jax vs Cho'Gath | 46.7% | 636 | Leans Cho'Gath |
| Jax vs Ziggs | 52.77% | 578 | Leans Jax |
| Jax vs Kled | 47.31% | 577 | Leans Kled |
| Jax vs Kennen | 44.32% | 555 | Kennen favoured |
| Jax vs Quinn | 42.26% | 549 | Quinn favoured |
| Jax vs Neeko | 54.62% | 520 | Leans Jax |
| Jax vs Trundle | 54.83% | 518 | Leans Jax |
| Jax vs Sejuani | 50.61% | 490 | Even |
| Jax vs Maokai | 52.26% | 486 | Leans Jax |
| Jax vs Cassiopeia | 49.68% | 467 | Even |
| Jax vs Zac | 56.12% | 417 | Jax favoured |
| Jax vs Master Yi | 55.52% | 308 | Jax favoured |
| Jax vs Karma | 58.22% | 304 | Jax favoured |
| Jax vs Heimerdinger | 49.48% | 291 | Even |