The champions that counter Illaoi hardest in top lane are Master Yi (44.44%), Singed (44.95%) and Garen (45.12%) — those are Illaoi's own pooled win rates. The easiest matchups are Renekton (58.53%), Quinn (56.29%) and Swain (55.99%).
71 researched matchup guides for Illaoi in top lane, most-played first. Win rates are Illaoi's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Illaoi vs Nautilus | 53.63% | 3,181 | Leans Illaoi |
| Illaoi vs Graves | 51.7% | 2,677 | Leans Illaoi |
| Illaoi vs Sylas | 55.83% | 2,549 | Illaoi favoured |
| Illaoi vs Garen | 45.12% | 2,482 | Leans Garen |
| Illaoi vs Lucian | 52.85% | 2,212 | Leans Illaoi |
| Illaoi vs Mordekaiser | 48.61% | 2,191 | Leans Mordekaiser |
| Illaoi vs Yasuo | 53.87% | 2,183 | Leans Illaoi |
| Illaoi vs Darius | 51.14% | 2,157 | Leans Illaoi |
| Illaoi vs Sett | 54.49% | 2,081 | Leans Illaoi |
| Illaoi vs Renekton | 58.53% | 2,040 | Illaoi favoured |
| Illaoi vs Sion | 47.54% | 1,851 | Leans Sion |
| Illaoi vs Aatrox | 52.73% | 1,849 | Leans Illaoi |
| Illaoi vs Karma | 52.16% | 1,783 | Leans Illaoi |
| Illaoi vs Akali | 49.18% | 1,739 | Leans Akali |
| Illaoi vs Yone | 48.94% | 1,694 | Leans Yone |
| Illaoi vs Wukong | 50% | 1,652 | Even |
| Illaoi vs Jax | 55.11% | 1,635 | Illaoi favoured |
| Illaoi vs Shen | 50.74% | 1,612 | Even |
| Illaoi vs Malphite | 51.28% | 1,601 | Leans Illaoi |
| Illaoi vs Ornn | 48.62% | 1,450 | Leans Ornn |
| Illaoi vs Nasus | 51.24% | 1,409 | Leans Illaoi |
| Illaoi vs Vayne | 53.76% | 1,395 | Leans Illaoi |
| Illaoi vs Gangplank | 48.17% | 1,287 | Leans Gangplank |
| Illaoi vs Galio | 54.29% | 1,271 | Leans Illaoi |
| Illaoi vs Vladimir | 55.17% | 1,238 | Illaoi favoured |
| Illaoi vs K'Sante | 54.81% | 1,155 | Leans Illaoi |
| Illaoi vs Yorick | 45.51% | 1,114 | Leans Yorick |
| Illaoi vs Dr. Mundo | 51.19% | 1,096 | Leans Illaoi |
| Illaoi vs Riven | 49.91% | 1,064 | Even |
| Illaoi vs Jayce | 52.26% | 1,062 | Leans Illaoi |
| Illaoi vs Pantheon | 52.17% | 1,014 | Leans Illaoi |
| Illaoi vs Zaahen | 50.9% | 1,000 | Leans Illaoi |
| Illaoi vs Teemo | 48.08% | 988 | Leans Teemo |
| Illaoi vs Tryndamere | 47.98% | 967 | Leans Tryndamere |
| Illaoi vs Warwick | 53.98% | 954 | Leans Illaoi |
| Illaoi vs Tahm Kench | 50.9% | 943 | Leans Illaoi |
| Illaoi vs Volibear | 51.01% | 939 | Leans Illaoi |
| Illaoi vs Camille | 52.03% | 938 | Leans Illaoi |
| Illaoi vs Irelia | 54.12% | 935 | Leans Illaoi |
| Illaoi vs Olaf | 53.34% | 928 | Leans Illaoi |
| Illaoi vs Urgot | 52.97% | 925 | Leans Illaoi |
| Illaoi vs Gnar | 54.99% | 902 | Leans Illaoi |
| Illaoi vs Fiora | 49.49% | 887 | Even |
| Illaoi vs Kassadin | 51.54% | 879 | Leans Illaoi |
| Illaoi vs Ambessa | 54.14% | 870 | Leans Illaoi |
| Illaoi vs Kayle | 47.64% | 827 | Leans Kayle |
| Illaoi vs Swain | 55.99% | 802 | Illaoi favoured |
| Illaoi vs Ryze | 53.44% | 784 | Leans Illaoi |
| Illaoi vs Akshan | 50.57% | 783 | Even |
| Illaoi vs Mel | 55.99% | 759 | Illaoi favoured |
| Illaoi vs Cho'Gath | 53.4% | 721 | Leans Illaoi |
| Illaoi vs Ziggs | 50.65% | 695 | Even |
| Illaoi vs Lillia | 52.92% | 684 | Leans Illaoi |
| Illaoi vs Aurora | 50.84% | 653 | Leans Illaoi |
| Illaoi vs Singed | 44.95% | 643 | Singed favoured |
| Illaoi vs Zac | 52.7% | 630 | Leans Illaoi |
| Illaoi vs Gragas | 53.21% | 624 | Leans Illaoi |
| Illaoi vs Gwen | 50.82% | 612 | Leans Illaoi |
| Illaoi vs Poppy | 50% | 608 | Even |
| Illaoi vs Sejuani | 52.72% | 588 | Leans Illaoi |
| Illaoi vs Maokai | 52.2% | 569 | Leans Illaoi |
| Illaoi vs Kled | 51.6% | 531 | Leans Illaoi |
| Illaoi vs Locke | 49.5% | 499 | Even |
| Illaoi vs Rumble | 48.5% | 499 | Leans Rumble |
| Illaoi vs Neeko | 54.97% | 453 | Leans Illaoi |
| Illaoi vs Trundle | 53.33% | 450 | Leans Illaoi |
| Illaoi vs Heimerdinger | 46.27% | 402 | Leans Heimerdinger |
| Illaoi vs Cassiopeia | 50.88% | 340 | Leans Illaoi |
| Illaoi vs Quinn | 56.29% | 286 | Illaoi favoured |
| Illaoi vs Kennen | 49.61% | 254 | Even |
| Illaoi vs Master Yi | 44.44% | 171 | Master Yi favoured |