Ireliavs Cassiopeia
Irelia vs Cassiopeia is a decisive matchup in LoL patch 26.11. Cassiopeia wins with a 61.5% win rate (+23.1%) over Irelia based on 13 games. Irelia wins the early laning phase while Cassiopeia scales better into the late game. Below you'll find the best Irelia build, runes, laning stats, and strategies for the Irelia vs Cassiopeia matchup.
Irelia Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Irelia performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.
Who Wins the Irelia vs Cassiopeia Matchup?
Irelia vs Cassiopeia Matchup Summary
The Irelia vs Cassiopeia matchup is a decisive matchup in League of Legends ranked play. Based on 13 recent matches analyzed, Cassiopeia wins with a 61.5% win rate compared to Irelia's 38.5%, giving Cassiopeia a 23.1 percentage point advantage. Game phase dynamics play a critical role here: Irelia controls the early laning stage, but Cassiopeia outscales as the game goes longer. The matchup shifts dramatically depending on game length — Irelia needs to press advantages before Cassiopeia reaches their power spikes, while Cassiopeia should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in sustain, where Irelia leads by 947 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Cassiopeia has a strong advantage in this matchup. Irelia players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Cassiopeia overextending. Avoid prolonged trades and wait for team fights where positioning and coordination matter more. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Irelia vs Cassiopeia Laning Phase Breakdown
Irelia is favored during the laning phase against Cassiopeia, winning 4 out of 5 key stat categories. Irelia holds advantages in farming, damage, gold income and sustain, making them the stronger laner in this matchup.
Best Irelia Build Against Cassiopeia
Chainlaced Crushers is the optimal boots choice against Cassiopeia, providing the mobility and stats Irelia needs most in this matchup. The top-performing core items for Irelia against Cassiopeia are Death's Dance, Hullbreaker and Blade of The Ruined King. This combination gives Irelia an effective balance of damage, survivability, and utility for the matchup. This build achieves a solid 50.0% win rate across 4 games, proving it to be a reliable item path when facing Cassiopeia. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Irelia vs Cassiopeia matchup.
Early Game vs Late Game
Irelia60.0%
Cassiopeia40.0%Irelia25.0%Cassiopeia75.0%Irelia dominates the early game (first 15 minutes) with a commanding 60.0% win rate — a 20.0 percentage point lead over Cassiopeia. This lopsided early game means Irelia can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Cassiopeia is far superior in the late game (25+ minutes), boasting a 75.0% win rate — 50.0 points above Irelia. Extended games heavily favor Cassiopeia, whose kit and scaling make them a dominant force in team fights and objective control.
This matchup features a dramatic power shift: Irelia must aggressively press their early advantage and close out the game before Cassiopeia reaches their scaling breakpoints. If Cassiopeia survives the laning phase without falling too far behind, the matchup flips in their favor. Dragon and Rift Herald control are pivotal — the team that secures early objectives can snowball or buy time to scale.
Best Irelia Runes Against Cassiopeia
Precision
Resolve
The Precision and Resolve rune setup gives Irelia the best tools to compete against Cassiopeia in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Irelia matchup data for League of Legends patch 26.11. The table below shows Irelia's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Irelia build, runes, laning stats, and early vs late game analysis for that specific matchup.
Opponent | Win Rate | Matches | CS/min | DMG/min | Gold/game | Early WR | Late WR |
|---|---|---|---|---|---|---|---|
| 44.12% | 136 | 7.8 | 725 | 12,534 | 45.2% | 43.2% | |
| 49.25% | 134 | 7.5 | 830 | 12,966 | 53.3% | 46.0% | |
| 43.85% | 130 | 7.6 | 784 | 13,283 | 52.7% | 37.3% | |
| 51.24% | 121 | 7.6 | 852 | 13,089 | 57.6% | 45.2% | |
| 40.17% | 117 | 7.6 | 818 | 12,380 | 36.4% | 43.5% | |
| 53.04% | 115 | 8.2 | 985 | 14,027 | 67.3% | 40.0% | |
| 40.87% | 115 | 7.6 | 863 | 14,126 | 47.7% | 36.6% | |
| 53.33% | 105 | 7.8 | 885 | 13,455 | 50.0% | 55.7% | |
| 59.60% | 99 | 7.4 | 906 | 12,605 | 64.3% | 53.5% | |
| 44.68% | 94 | 7.3 | 791 | 11,412 | 45.3% | 43.9% | |
| 56.82% | 88 | 7.6 | 848 | 13,231 | 57.9% | 56.0% | |
| 46.51% | 86 | 7.0 | 916 | 13,133 | 47.2% | 46.0% | |
| 52.38% | 84 | 7.2 | 732 | 11,895 | 53.3% | 51.3% | |
| 56.96% | 79 | 8.1 | 903 | 13,483 | 66.7% | 46.0% | |
| 46.75% | 77 | 7.7 | 818 | 13,253 | 38.9% | 53.7% | |
| 40.00% | 75 | 7.5 | 812 | 12,757 | 41.2% | 39.0% | |
| 51.39% | 72 | 7.8 | 1,201 | 12,346 | 51.3% | 51.5% | |
| 56.34% | 71 | 7.5 | 840 | 12,878 | 56.7% | 56.1% | |
| 56.34% | 71 | 7.8 | 1,131 | 13,509 | 45.2% | 65.0% | |
| 46.97% | 66 | 7.2 | 793 | 12,373 | 43.3% | 50.0% | |
| 56.06% | 66 | 7.3 | 858 | 14,488 | 60.0% | 53.7% | |
| 46.88% | 64 | 7.7 | 838 | 13,284 | 51.9% | 43.2% | |
| 37.50% | 64 | 7.5 | 827 | 12,411 | 35.3% | 40.0% | |
| 54.69% | 64 | 7.4 | 879 | 13,407 | 48.3% | 60.0% | |
| 44.44% | 63 | 7.7 | 995 | 12,726 | 43.3% | 45.5% | |
| 56.45% | 62 | 8.0 | 874 | 12,872 | 61.8% | 50.0% | |
| 50.00% | 62 | 7.7 | 849 | 12,722 | 48.3% | 51.5% | |
| 50.00% | 60 | 7.3 | 844 | 12,500 | 48.5% | 51.9% | |
| 48.28% | 58 | 7.3 | 993 | 12,404 | 53.6% | 43.3% | |
| 46.55% | 58 | 7.2 | 749 | 13,158 | 59.1% | 38.9% | |
| 42.11% | 57 | 7.6 | 875 | 13,844 | 50.0% | 35.5% | |
| 57.89% | 57 | 7.8 | 831 | 13,411 | 57.1% | 58.6% | |
| 43.64% | 55 | 7.4 | 796 | 12,539 | 32.1% | 55.6% | |
| 40.00% | 55 | 7.7 | 923 | 13,172 | 59.3% | 21.4% | |
| 40.74% | 54 | 7.7 | 959 | 13,613 | 40.0% | 41.4% | |
| 50.00% | 52 | 7.7 | 879 | 12,067 | 50.0% | 50.0% | |
| 43.14% | 51 | 7.6 | 770 | 12,537 | 46.1% | 40.0% | |
| 62.00% | 50 | 7.6 | 894 | 13,009 | 62.5% | 61.5% | |
| 58.00% | 50 | 7.9 | 967 | 13,655 | 56.5% | 59.3% | |
| 48.98% | 49 | 7.7 | 743 | 12,333 | 45.5% | 51.9% | |
| 57.14% | 49 | 7.2 | 760 | 12,853 | 52.2% | 61.5% | |
| 58.70% | 46 | 8.2 | 885 | 13,611 | 65.2% | 52.2% | |
| 52.17% | 46 | 8.3 | 940 | 13,526 | 42.1% | 59.3% | |
| 57.78% | 45 | 7.7 | 1,034 | 15,427 | 53.3% | 60.0% | |
| 47.73% | 44 | 7.1 | 963 | 12,518 | 45.0% | 50.0% | |
| 56.82% | 44 | 7.5 | 871 | 11,813 | 48.3% | 73.3% | |
| 46.51% | 43 | 7.9 | 792 | 12,625 | 59.1% | 33.3% | |
| 46.51% | 43 | 7.5 | 875 | 12,573 | 50.0% | 44.0% | |
| 45.24% | 42 | 7.7 | 871 | 13,021 | 47.8% | 42.1% | |
| 45.24% | 42 | 7.8 | 798 | 11,939 | 50.0% | 35.7% | |
| 50.00% | 42 | 7.8 | 862 | 12,314 | 50.0% | 50.0% | |
| 48.78% | 41 | 7.7 | 937 | 11,694 | 50.0% | 47.4% | |
| 58.97% | 39 | 7.6 | 849 | 11,858 | 71.4% | 44.4% | |
| 56.41% | 39 | 8.0 | 870 | 13,061 | 65.0% | 47.4% | |
| 50.00% | 38 | 7.0 | 890 | 12,690 | 50.0% | 50.0% | |
| 59.46% | 37 | 7.7 | 890 | 12,933 | 66.7% | 52.6% | |
| 58.33% | 36 | 7.8 | 773 | 13,506 | 75.0% | 45.0% | |
| 58.33% | 36 | 7.2 | 849 | 13,622 | 60.0% | 57.1% | |
| 50.00% | 34 | 7.8 | 954 | 14,603 | 61.5% | 42.9% | |
| 66.67% | 33 | 8.2 | 934 | 13,333 | 86.7% | 50.0% | |
| 54.55% | 33 | 7.6 | 923 | 12,522 | 61.1% | 46.7% | |
| 43.75% | 32 | 7.3 | 822 | 13,321 | 45.5% | 42.9% | |
| 61.29% | 31 | 7.9 | 862 | 10,969 | 64.7% | 57.1% | |
| 48.39% | 31 | 8.3 | 816 | 12,753 | 43.8% | 53.3% | |
| 68.97% | 29 | 7.8 | 938 | 13,975 | 66.7% | 70.6% | |
| 46.43% | 28 | 8.0 | 1,046 | 12,976 | 64.3% | 28.6% | |
| 50.00% | 28 | 7.4 | 735 | 13,158 | 57.1% | 42.9% | |
| 46.43% | 28 | 7.5 | 858 | 13,321 | 55.6% | 42.1% | |
| 42.86% | 28 | 7.8 | 830 | 13,485 | 58.3% | 31.3% | |
| 50.00% | 28 | 8.0 | 730 | 12,143 | 61.5% | 40.0% | |
| 59.26% | 27 | 7.7 | 1,028 | 14,591 | 83.3% | 40.0% | |
| 65.38% | 26 | 8.0 | 767 | 13,177 | 78.6% | 50.0% | |
| 57.69% | 26 | 7.6 | 828 | 10,985 | 66.7% | 37.5% | |
| 38.46% | 26 | 7.8 | 913 | 12,818 | 33.3% | 42.9% | |
| 36.00% | 25 | 7.0 | 794 | 11,721 | 46.7% | 20.0% | |
| 68.00% | 25 | 7.9 | 971 | 13,392 | 72.7% | 64.3% | |
| 45.83% | 24 | 7.7 | 767 | 12,786 | 46.1% | 45.5% | |
| 50.00% | 24 | 7.5 | 707 | 12,348 | 50.0% | 50.0% | |
| 58.33% | 24 | 7.3 | 904 | 13,512 | 54.5% | 61.5% | |
| 45.83% | 24 | 7.2 | 743 | 12,959 | 33.3% | 53.3% | |
| 33.33% | 21 | 6.9 | 872 | 12,712 | 22.2% | 41.7% | |
| 57.14% | 21 | 7.9 | 955 | 11,871 | 54.5% | 60.0% | |
| 47.37% | 19 | 7.6 | 822 | 14,198 | 66.7% | 38.5% | |
| 36.84% | 19 | 6.9 | 837 | 11,910 | 36.4% | 37.5% | |
| 72.22% | 18 | 7.6 | 878 | 10,682 | 75.0% | 66.7% | |
| 47.06% | 17 | 7.8 | 839 | 13,007 | 83.3% | 27.3% | |
| 56.25% | 16 | 7.5 | 959 | 14,708 | 40.0% | 63.6% | |
| 53.33% | 15 | 7.4 | 758 | 14,522 | 71.4% | 37.5% | |
| 57.14% | 14 | 8.4 | 684 | 11,815 | 55.6% | 60.0% | |
| 28.57% | 14 | 7.1 | 779 | 11,695 | 28.6% | 28.6% | |
| 61.54% | 13 | 8.1 | 1,047 | 15,861 | 83.3% | 42.9% | |
| 38.46% | 13 | 7.5 | 967 | 14,729 | 60.0% | 25.0% | |
| 27.27% | 11 | 6.7 | 766 | 12,054 | 0.0% | 42.9% | |
| 54.55% | 11 | 7.6 | 925 | 14,051 | 60.0% | 50.0% | |
| 36.36% | 11 | 7.1 | 577 | 12,433 | 20.0% | 50.0% | |
| 81.82% | 11 | 6.3 | 878 | 10,457 | 87.5% | 66.7% | |
| 54.55% | 11 | 8.4 | 943 | 11,640 | 50.0% | 66.7% | |
| 80.00% | 10 | 8.4 | 1,026 | 13,636 | 80.0% | 80.0% | |
| 60.00% | 10 | 6.1 | 651 | 12,441 | 60.0% | 60.0% | |
| 77.78% | 9 | 8.0 | 1,154 | 11,747 | 66.7% | 100.0% | |
| 62.50% | 8 | 7.6 | 983 | 13,230 | 100.0% | 40.0% | |
| 57.14% | 7 | 7.3 | 928 | 13,458 | 100.0% | 40.0% | |
| 71.43% | 7 | 8.3 | 986 | 9,459 | 60.0% | 100.0% | |
| 57.14% | 7 | 8.3 | 1,046 | 13,245 | 100.0% | 25.0% | |
| 66.67% | 6 | 7.4 | 914 | 10,010 | 75.0% | 50.0% | |
| 50.00% | 6 | 6.9 | 869 | 14,068 | 100.0% | 25.0% | |
| 100.00% | 6 | 7.9 | 808 | 11,284 | 100.0% | 100.0% | |
| 83.33% | 6 | 7.3 | 631 | 13,743 | 66.7% | 100.0% | |
| 33.33% | 6 | 7.4 | 878 | 12,463 | 66.7% | 0.0% | |
| 100.00% | 6 | 7.8 | 869 | 14,433 | 100.0% | 100.0% | |
| 33.33% | 6 | 7.9 | 852 | 14,468 | 50.0% | 25.0% | |
| 40.00% | 5 | 7.1 | 829 | 12,364 | 0.0% | 66.7% | |
| 60.00% | 5 | 8.4 | 856 | 14,689 | 75.0% | 0.0% | |
| 80.00% | 5 | 7.9 | 997 | 18,293 | 100.0% | 66.7% | |
| 20.00% | 5 | 9.1 | 1,046 | 13,567 | 33.3% | 0.0% | |
| 60.00% | 5 | 8.4 | 782 | 12,920 | 100.0% | 33.3% | |
| 80.00% | 5 | 8.1 | 1,200 | 12,487 | 100.0% | 50.0% | |
| 60.00% | 5 | 7.8 | 959 | 14,509 | 100.0% | 0.0% | |
| 40.00% | 5 | 8.0 | 820 | 13,691 | 66.7% | 0.0% | |
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Irelia vs Cassiopeia - Frequently Asked Questions
How does Irelia do against Cassiopeia in League of Legends?
Cassiopeia wins the Irelia vs Cassiopeia matchup with a 61.5% win rate compared to Irelia's 38.5%, a 23.1 percentage point difference. This data is based on 13 recent ranked games in patch 26.11.
How does Irelia do against Cassiopeia in the early game?
In the early game, Irelia has the advantage against Cassiopeia with a 60.0% win rate versus 40.0%. Irelia players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Irelia do against Cassiopeia in the late game?
In the late game, Cassiopeia takes over the Irelia vs Cassiopeia matchup with a 75.0% win rate compared to 25.0%. Cassiopeia scales better into team fights and objective contests after 25 minutes.
Who wins the Irelia vs Cassiopeia matchup?
Cassiopeia wins the matchup against Irelia with a 61.5% win rate in League of Legends patch 26.11. The 23.1 percentage point advantage means Cassiopeia is significantly favored in this lane matchup based on 13 games analyzed.
What is the best Irelia build against Cassiopeia?
The best Irelia build against Cassiopeia includes Death's Dance, Hullbreaker, Blade of The Ruined King with Chainlaced Crushers. This build achieves a 50.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.
What are the best Irelia runes against Cassiopeia?
The best Irelia runes against Cassiopeia use the Precision primary tree with Resolve secondary. This rune setup achieves a 100.0% win rate in the Irelia vs Cassiopeia matchup. See the full rune breakdown in the matchup comparison above.
Does Irelia counter Cassiopeia?
No, Irelia struggles against Cassiopeia with only a 38.5% win rate. Cassiopeia has the advantage in this matchup. Irelia players should focus on safe farming and avoiding extended trades to minimize Cassiopeia's lead.
How do I play Irelia against Cassiopeia?
When playing Irelia against Cassiopeia, play cautiously and avoid Cassiopeia's power spikes. Look for jungle assistance and team-dependent plays since Cassiopeia has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.