The champions that counter Kassadin hardest in top lane are Graves (31.43%), Galio (40%) and Lillia (40%) — those are Kassadin's own pooled win rates. The easiest matchups are Neeko (85.71%), Karma (67.31%) and Lucian (60.87%).
71 researched matchup guides for Kassadin in top lane, most-played first. Win rates are Kassadin's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Kassadin vs Garen | 47.28% | 2,627 | Leans Garen |
| Kassadin vs Darius | 48.4% | 2,308 | Leans Darius |
| Kassadin vs Yone | 50.18% | 1,939 | Even |
| Kassadin vs Aatrox | 48.83% | 1,714 | Leans Aatrox |
| Kassadin vs Sion | 52.72% | 1,652 | Leans Kassadin |
| Kassadin vs Sett | 49.33% | 1,640 | Even |
| Kassadin vs Renekton | 50.37% | 1,489 | Even |
| Kassadin vs Dr. Mundo | 49.18% | 1,285 | Leans Dr. Mundo |
| Kassadin vs Shen | 47.36% | 1,269 | Leans Shen |
| Kassadin vs Ornn | 44.95% | 1,248 | Ornn favoured |
| Kassadin vs Riven | 47.69% | 1,147 | Leans Riven |
| Kassadin vs Yorick | 48.12% | 1,062 | Leans Yorick |
| Kassadin vs Locke | 50.82% | 1,039 | Leans Kassadin |
| Kassadin vs Zaahen | 47.38% | 1,030 | Leans Zaahen |
| Kassadin vs Yasuo | 50.25% | 1,013 | Even |
| Kassadin vs Tryndamere | 54.1% | 976 | Leans Kassadin |
| Kassadin vs Malphite | 48.96% | 960 | Leans Malphite |
| Kassadin vs Illaoi | 48.46% | 879 | Leans Illaoi |
| Kassadin vs Vayne | 48.81% | 842 | Leans Vayne |
| Kassadin vs Urgot | 50.24% | 826 | Even |
| Kassadin vs Volibear | 51.29% | 815 | Leans Kassadin |
| Kassadin vs Singed | 45.93% | 799 | Leans Singed |
| Kassadin vs Pantheon | 49% | 798 | Leans Pantheon |
| Kassadin vs Jax | 49.22% | 768 | Leans Jax |
| Kassadin vs Gangplank | 46.93% | 716 | Leans Gangplank |
| Kassadin vs Olaf | 49.57% | 702 | Even |
| Kassadin vs Vladimir | 49.1% | 668 | Leans Vladimir |
| Kassadin vs Tahm Kench | 47.32% | 653 | Leans Tahm Kench |
| Kassadin vs K'Sante | 49.69% | 646 | Even |
| Kassadin vs Jayce | 51.38% | 580 | Leans Kassadin |
| Kassadin vs Rumble | 51.87% | 561 | Leans Kassadin |
| Kassadin vs Irelia | 49.64% | 548 | Even |
| Kassadin vs Teemo | 45.66% | 519 | Leans Teemo |
| Kassadin vs Gnar | 47.02% | 470 | Leans Gnar |
| Kassadin vs Sylas | 47.9% | 453 | Leans Sylas |
| Kassadin vs Kayle | 49.44% | 443 | Even |
| Kassadin vs Nasus | 52.37% | 443 | Leans Kassadin |
| Kassadin vs Warwick | 40.92% | 435 | Warwick favoured |
| Kassadin vs Camille | 43.91% | 419 | Camille favoured |
| Kassadin vs Fiora | 52.11% | 380 | Leans Kassadin |
| Kassadin vs Cho'Gath | 50.28% | 362 | Even |
| Kassadin vs Gragas | 51.45% | 344 | Leans Kassadin |
| Kassadin vs Poppy | 43.83% | 324 | Poppy favoured |
| Kassadin vs Ambessa | 54.97% | 322 | Leans Kassadin |
| Kassadin vs Gwen | 48.14% | 322 | Leans Gwen |
| Kassadin vs Quinn | 46.71% | 304 | Leans Quinn |
| Kassadin vs Wukong | 43.88% | 294 | Wukong favoured |
| Kassadin vs Kled | 44.31% | 246 | Kled favoured |
| Kassadin vs Kennen | 45.69% | 232 | Leans Kennen |
| Kassadin vs Ryze | 42.6% | 223 | Ryze favoured |
| Kassadin vs Trundle | 52.53% | 198 | Leans Kassadin |
| Kassadin vs Master Yi | 46.91% | 194 | Leans Master Yi |
| Kassadin vs Heimerdinger | 45.03% | 171 | Leans Heimerdinger |
| Kassadin vs Zac | 52.48% | 141 | Leans Kassadin |
| Kassadin vs Swain | 47.37% | 133 | Leans Swain |
| Kassadin vs Sejuani | 40.59% | 101 | Sejuani favoured |
| Kassadin vs Cassiopeia | 42% | 100 | Cassiopeia favoured |
| Kassadin vs Aurora | 46.15% | 91 | Leans Aurora |
| Kassadin vs Maokai | 49.37% | 79 | Even |
| Kassadin vs Graves | 31.43% | 70 | Graves favoured |
| Kassadin vs Nautilus | 49.12% | 57 | Leans Nautilus |
| Kassadin vs Karma | 67.31% | 52 | Kassadin favoured |
| Kassadin vs Lucian | 60.87% | 46 | Kassadin favoured |
| Kassadin vs Galio | 40% | 45 | Galio favoured |
| Kassadin vs Akali | 48.71% | 29 | Leans Akali |
| Kassadin vs Akshan | 52% | 25 | Leans Kassadin |
| Kassadin vs Mordekaiser | 40.91% | 22 | Mordekaiser favoured |
| Kassadin vs Lillia | 40% | 15 | Lillia favoured |
| Kassadin vs Neeko | 85.71% | 14 | Kassadin favoured |
| Kassadin vs Ziggs | 58.33% | 12 | Kassadin favoured |
| Kassadin vs Mel | 50% | 10 | Even |