The champions that counter Sion hardest in top lane are Zaahen (43.01%), Warwick (44.89%) and Mordekaiser (44.96%) — those are Sion's own pooled win rates. The easiest matchups are Quinn (57.98%), Mel (57.48%) and Teemo (56.44%).
71 researched matchup guides for Sion in top lane, most-played first. Win rates are Sion's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Sion vs Graves | 52.98% | 7,645 | Leans Sion |
| Sion vs Nasus | 51.85% | 7,362 | Leans Sion |
| Sion vs Sylas | 50.39% | 5,999 | Even |
| Sion vs Yone | 48.13% | 5,849 | Leans Yone |
| Sion vs Karma | 52.18% | 5,479 | Leans Sion |
| Sion vs Lucian | 53.35% | 5,273 | Leans Sion |
| Sion vs Garen | 49.96% | 4,922 | Even |
| Sion vs Malphite | 55.47% | 4,525 | Sion favoured |
| Sion vs Aatrox | 48.35% | 4,492 | Leans Aatrox |
| Sion vs Yasuo | 52.43% | 4,471 | Leans Sion |
| Sion vs Darius | 49.34% | 4,420 | Even |
| Sion vs Akali | 51.11% | 4,328 | Leans Sion |
| Sion vs Gangplank | 53.59% | 4,284 | Leans Sion |
| Sion vs Jayce | 54.47% | 4,230 | Leans Sion |
| Sion vs Teemo | 56.44% | 3,864 | Sion favoured |
| Sion vs Wukong | 49.65% | 3,450 | Even |
| Sion vs Sett | 50.8% | 3,254 | Leans Sion |
| Sion vs Mordekaiser | 44.96% | 3,044 | Mordekaiser favoured |
| Sion vs Gwen | 49.86% | 2,948 | Even |
| Sion vs Yorick | 54.55% | 2,860 | Leans Sion |
| Sion vs Dr. Mundo | 48% | 2,831 | Leans Dr. Mundo |
| Sion vs Shen | 49.31% | 2,815 | Even |
| Sion vs Vladimir | 49.77% | 2,811 | Even |
| Sion vs K'Sante | 54.48% | 2,801 | Leans Sion |
| Sion vs Galio | 51.13% | 2,793 | Leans Sion |
| Sion vs Jax | 54.32% | 2,791 | Leans Sion |
| Sion vs Vayne | 50.51% | 2,752 | Even |
| Sion vs Olaf | 49.68% | 2,679 | Even |
| Sion vs Ornn | 46.93% | 2,561 | Leans Ornn |
| Sion vs Renekton | 51.12% | 2,277 | Leans Sion |
| Sion vs Riven | 48.36% | 2,229 | Leans Riven |
| Sion vs Irelia | 52.44% | 2,191 | Leans Sion |
| Sion vs Ryze | 55.14% | 2,189 | Sion favoured |
| Sion vs Ambessa | 50.02% | 2,175 | Even |
| Sion vs Gnar | 50.98% | 2,136 | Leans Sion |
| Sion vs Fiora | 50.19% | 2,132 | Even |
| Sion vs Singed | 47.11% | 2,095 | Leans Singed |
| Sion vs Zaahen | 43.01% | 1,960 | Zaahen favoured |
| Sion vs Illaoi | 52.46% | 1,851 | Leans Sion |
| Sion vs Cho'Gath | 50.93% | 1,824 | Leans Sion |
| Sion vs Mel | 57.48% | 1,818 | Sion favoured |
| Sion vs Tryndamere | 50.57% | 1,766 | Even |
| Sion vs Aurora | 50.28% | 1,762 | Even |
| Sion vs Kayle | 48.51% | 1,713 | Leans Kayle |
| Sion vs Tahm Kench | 49.85% | 1,697 | Even |
| Sion vs Akshan | 52.76% | 1,666 | Leans Sion |
| Sion vs Lillia | 48.58% | 1,659 | Leans Lillia |
| Sion vs Kassadin | 47.28% | 1,652 | Leans Kassadin |
| Sion vs Volibear | 52.44% | 1,640 | Leans Sion |
| Sion vs Camille | 50.54% | 1,561 | Even |
| Sion vs Swain | 52.95% | 1,560 | Leans Sion |
| Sion vs Pantheon | 48.7% | 1,544 | Leans Pantheon |
| Sion vs Urgot | 53.52% | 1,534 | Leans Sion |
| Sion vs Neeko | 49.16% | 1,489 | Leans Neeko |
| Sion vs Zac | 49.11% | 1,468 | Leans Zac |
| Sion vs Gragas | 52.58% | 1,417 | Leans Sion |
| Sion vs Poppy | 52.38% | 1,323 | Leans Sion |
| Sion vs Nautilus | 53.15% | 1,319 | Leans Sion |
| Sion vs Rumble | 54.3% | 1,313 | Leans Sion |
| Sion vs Ziggs | 48.39% | 1,308 | Leans Ziggs |
| Sion vs Cassiopeia | 53.72% | 1,262 | Leans Sion |
| Sion vs Trundle | 51.88% | 1,249 | Leans Sion |
| Sion vs Maokai | 51.31% | 1,144 | Leans Sion |
| Sion vs Sejuani | 49.82% | 1,140 | Even |
| Sion vs Locke | 54.96% | 1,079 | Leans Sion |
| Sion vs Quinn | 57.98% | 1,040 | Sion favoured |
| Sion vs Kennen | 55.85% | 1,017 | Sion favoured |
| Sion vs Kled | 51.54% | 972 | Leans Sion |
| Sion vs Heimerdinger | 53.09% | 921 | Leans Sion |
| Sion vs Warwick | 44.89% | 626 | Warwick favoured |
| Sion vs Master Yi | 51.36% | 294 | Leans Sion |