The champions that counter Sejuani hardest in top lane are Zac (40.24%), Olaf (43.12%) and Quinn (43.55%) — those are Sejuani's own pooled win rates. The easiest matchups are Kassadin (59.41%), Neeko (58.62%) and Maokai (58.49%).
71 researched matchup guides for Sejuani in top lane, most-played first. Win rates are Sejuani's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Sejuani vs Garen | 47.67% | 1,628 | Leans Garen |
| Sejuani vs Darius | 49.96% | 1,417 | Even |
| Sejuani vs Yone | 49.43% | 1,230 | Even |
| Sejuani vs Aatrox | 47.74% | 1,171 | Leans Aatrox |
| Sejuani vs Sett | 46.38% | 1,147 | Leans Sett |
| Sejuani vs Sion | 50.18% | 1,140 | Even |
| Sejuani vs Shen | 47.6% | 813 | Leans Shen |
| Sejuani vs Ornn | 48.94% | 805 | Leans Ornn |
| Sejuani vs Dr. Mundo | 47.14% | 751 | Leans Dr. Mundo |
| Sejuani vs Riven | 51.03% | 729 | Leans Sejuani |
| Sejuani vs Yorick | 47.97% | 690 | Leans Yorick |
| Sejuani vs Malphite | 46.39% | 679 | Leans Malphite |
| Sejuani vs Tryndamere | 49.78% | 671 | Even |
| Sejuani vs Zaahen | 51.19% | 631 | Leans Sejuani |
| Sejuani vs Yasuo | 50.97% | 618 | Leans Sejuani |
| Sejuani vs Illaoi | 47.28% | 588 | Leans Illaoi |
| Sejuani vs Volibear | 49.54% | 545 | Even |
| Sejuani vs Vayne | 48.7% | 540 | Leans Vayne |
| Sejuani vs Olaf | 43.12% | 538 | Olaf favoured |
| Sejuani vs Pantheon | 47.67% | 537 | Leans Pantheon |
| Sejuani vs Singed | 44.76% | 525 | Singed favoured |
| Sejuani vs Jax | 49.39% | 490 | Even |
| Sejuani vs Urgot | 50.64% | 472 | Even |
| Sejuani vs Locke | 58.33% | 444 | Sejuani favoured |
| Sejuani vs Gangplank | 47.61% | 439 | Leans Gangplank |
| Sejuani vs Tahm Kench | 52.97% | 438 | Leans Sejuani |
| Sejuani vs K'Sante | 47.84% | 416 | Leans K'Sante |
| Sejuani vs Rumble | 49.26% | 408 | Even |
| Sejuani vs Graves | 54.04% | 396 | Leans Sejuani |
| Sejuani vs Nautilus | 46.17% | 392 | Leans Nautilus |
| Sejuani vs Jayce | 49.49% | 390 | Even |
| Sejuani vs Irelia | 46.97% | 347 | Leans Irelia |
| Sejuani vs Sylas | 51.74% | 344 | Leans Sejuani |
| Sejuani vs Teemo | 46.15% | 325 | Leans Teemo |
| Sejuani vs Renekton | 49.52% | 313 | Even |
| Sejuani vs Warwick | 47.67% | 300 | Leans Warwick |
| Sejuani vs Nasus | 48.97% | 292 | Leans Nasus |
| Sejuani vs Kayle | 48.11% | 291 | Leans Kayle |
| Sejuani vs Vladimir | 47.74% | 287 | Leans Vladimir |
| Sejuani vs Fiora | 51.09% | 276 | Leans Sejuani |
| Sejuani vs Poppy | 44.16% | 274 | Poppy favoured |
| Sejuani vs Lucian | 57.41% | 270 | Sejuani favoured |
| Sejuani vs Gnar | 46.59% | 264 | Leans Gnar |
| Sejuani vs Karma | 53.31% | 257 | Leans Sejuani |
| Sejuani vs Gwen | 47.77% | 247 | Leans Gwen |
| Sejuani vs Camille | 49.78% | 227 | Even |
| Sejuani vs Wukong | 48.83% | 213 | Leans Wukong |
| Sejuani vs Ambessa | 44.81% | 212 | Ambessa favoured |
| Sejuani vs Akali | 49.71% | 201 | Even |
| Sejuani vs Gragas | 51.31% | 191 | Leans Sejuani |
| Sejuani vs Kled | 47.3% | 148 | Leans Kled |
| Sejuani vs Galio | 52.38% | 147 | Leans Sejuani |
| Sejuani vs Mordekaiser | 47.11% | 143 | Leans Mordekaiser |
| Sejuani vs Heimerdinger | 52.63% | 133 | Leans Sejuani |
| Sejuani vs Kennen | 51.88% | 133 | Leans Sejuani |
| Sejuani vs Ryze | 53.44% | 131 | Leans Sejuani |
| Sejuani vs Quinn | 43.55% | 124 | Quinn favoured |
| Sejuani vs Swain | 45.38% | 119 | Leans Swain |
| Sejuani vs Lillia | 47.86% | 117 | Leans Lillia |
| Sejuani vs Trundle | 57.01% | 107 | Sejuani favoured |
| Sejuani vs Master Yi | 55.24% | 105 | Sejuani favoured |
| Sejuani vs Kassadin | 59.41% | 101 | Sejuani favoured |
| Sejuani vs Mel | 54.35% | 92 | Leans Sejuani |
| Sejuani vs Cho'Gath | 48.89% | 90 | Leans Cho'Gath |
| Sejuani vs Akshan | 52.38% | 84 | Leans Sejuani |
| Sejuani vs Zac | 40.24% | 82 | Zac favoured |
| Sejuani vs Cassiopeia | 50.63% | 79 | Even |
| Sejuani vs Aurora | 51.32% | 76 | Leans Sejuani |
| Sejuani vs Ziggs | 45% | 60 | Ziggs favoured |
| Sejuani vs Neeko | 58.62% | 58 | Sejuani favoured |
| Sejuani vs Maokai | 58.49% | 53 | Sejuani favoured |