Sejuani - League of Legends Champion
Win Rate
50.0%
Pick Rate
1.3%

Sejuanivs Sion

CTank
Patch26.11
Matches776,441
LaneAll Lanes
TierAll Tiers
Last UpdatedJun 6, 2026
MethodologyData Methodology

Sejuani vs Sion is a decisive matchup in LoL patch 26.11. Sion wins with a 60.0% win rate (+20.0%) over Sejuani based on 5 games. Sejuani wins the early laning phase while Sion scales better into the late game. Below you'll find the best Sejuani build, runes, laning stats, and strategies for the Sejuani vs Sion matchup.

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Sejuani Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Sejuani 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.

Compare against an opponent
Sejuani - 40.0% win rate in this matchup
Sejuani
40.0% WR
VS
Sion vs Sejuani matchup - 60.0% win rate
Sion
60.0% WR

Who Wins the Sejuani vs Sion Matchup?

Sion wins the Sejuani vs Sion matchup
Winner
Sion
Matches: 5
40.0%
Win Rate
60.0%
3.5
CS / min
3.8
816
DMG / min
815
8,902
Gold / game
9,675
246
Heal / min
362
1,812
DMG Mitigated / min
2,588
1.4
CC / min
1.6
50.0%
Early Game WR
50.0%
33.3%
Late Game WR
66.7%

Sejuani vs Sion Matchup Summary

The Sejuani vs Sion matchup is a decisive matchup in League of Legends ranked play. Based on 5 recent matches analyzed, Sion wins with a 60.0% win rate compared to Sejuani's 40.0%, giving Sion a 20.0 percentage point advantage. Game phase dynamics play a critical role here: Sejuani controls the early laning stage, but Sion outscales as the game goes longer. The matchup shifts dramatically depending on game length — Sejuani needs to press advantages before Sion reaches their power spikes, while Sion should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in sustain, where Sion leads by 892 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Sion has a strong advantage in this matchup. Sejuani players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Sion 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.

Sejuani vs Sion Laning Phase Breakdown

Sion wins the laning phase against Sejuani in League of Legends

Sion is favored during the laning phase against Sejuani, winning 4 out of 5 key stat categories. Sion holds advantages in farming, gold income, crowd control and sustain, making them the stronger laner in this matchup.

Farming
3.5Sejuani
3.8Sion
Sejuani and Sion farm at nearly identical rates in this matchup, with only a 0.2 CS/min difference. Neither champion holds a meaningful farming advantage, so lane dominance will come from trading and jungle interaction rather than CS leads.
Damage
816Sejuani
815Sion
Damage output is virtually even between Sejuani and Sion, with only 1 DMG/min separating them. Fights in this matchup are decided more by ability timing and positioning than raw damage numbers, making mechanical skill the deciding factor in trades.
Economy
8,902Sejuani
9,675Sion
Sion earns 773 more gold per game than Sejuani, equivalent to roughly one additional component item. This economic edge comes from a combination of better farming, kill participation, and objective control, giving Sion slightly faster item completions.
Utility
1.4Sejuani
1.6Sion
Both Sejuani and Sion provide similar amounts of crowd control (0.2s/min difference), meaning neither has a significant advantage in locking down opponents for ganks or team fights. Lane ganks are equally effective for both sides.
Sustain
2,058Sejuani
2,950Sion
Sion vastly out-sustains Sejuani, healing and mitigating 892 more damage per minute. This massive durability gap means Sion can absorb significant punishment and remain in lane while Sejuani is forced to recall. Building grievous wounds early is essential for Sejuani, and focusing on burst trade patterns rather than sustained fights is critical.

Best Sejuani Build Against Sion

Plated Steelcaps is the optimal boots choice against Sion, providing the mobility and stats Sejuani needs most in this matchup. The top-performing core items for Sejuani against Sion are Bloodletter's Curse, Sunfire Aegis and Dusk and Dawn. This combination gives Sejuani an effective balance of damage, survivability, and utility for the matchup. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Sejuani vs Sion matchup.

Early Game vs Late Game

Early Game
Sejuani
50.0%
+0.0% advantage
Sejuani early game win rateSejuani50.0%
Sion early game win rateSion50.0%
Late Game
Sion
66.7%
+33.3% advantage
Sejuani late game win rateSejuani33.3%
Sion late game win rateSion66.7%

The early game (first 15 minutes) is a toss-up between Sejuani and Sion, with Sejuani holding a razor-thin 50.0% win rate edge (+0.0%). Individual skill and jungle proximity will matter more than champion advantage in the early laning phase.

Sion is far superior in the late game (25+ minutes), boasting a 66.7% win rate — 33.3 points above Sejuani. Extended games heavily favor Sion, whose kit and scaling make them a dominant force in team fights and objective control.

The power dynamics shift as the game progresses — Sejuani has the edge early, but Sion gradually takes over. However, the margins are slim enough that either champion can win at any stage with the right plays. Focus on taking advantages when you have them rather than waiting for a specific game phase.

Best Sejuani Runes Against Sion

Sorcery rune tree - Sejuani primary runes vs SionSorcery
Arcane Comet - best Sejuani rune vs SionManaflow Band - best Sejuani rune vs SionTranscendence - best Sejuani rune vs SionScorch - best Sejuani rune vs Sion
Resolve rune tree - Sejuani secondary runes vs SionResolve
Demolish - best Sejuani rune vs SionBone Plating - best Sejuani rune vs Sion
100.0% WR

The Sorcery and Resolve rune setup gives Sejuani the best tools to compete against Sion in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.


Sejuani matchup data for League of Legends patch 26.11. The table below shows Sejuani'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 Sejuani build, runes, laning stats, and early vs late game analysis for that specific matchup.

Sejuani matchup win rates and stats in League of Legends patch 26.11
Opponent
Win Rate
Matches
CS/min
DMG/min
Gold/game
Early WR
Late WR
45.05%911.164012,15643.8%45.8%
51.22%821.258711,89442.9%55.6%
44.12%681.057711,31554.2%38.6%
37.50%640.960812,66926.3%42.2%
41.27%631.054710,49740.0%42.9%
51.67%601.359111,05748.3%54.8%
40.35%571.162312,60038.9%41.0%
50.00%521.158312,10857.9%45.5%
52.08%481.874312,49752.9%51.6%
61.70%471.052411,43261.1%62.1%
55.56%450.958711,81345.0%64.0%
57.78%451.363111,70360.9%54.5%
52.38%421.054311,60547.1%56.0%
46.15%391.463212,01252.9%40.9%
45.95%370.857711,31331.3%57.1%
52.78%361.155711,80366.7%42.9%
52.78%360.958811,28053.3%52.4%
48.48%330.960811,49371.4%31.6%
51.61%310.955310,70356.3%46.7%
51.61%312.265310,84166.7%42.1%
43.33%300.959912,39562.5%36.4%
48.28%291.162612,57540.0%52.6%
50.00%281.364611,86138.5%60.0%
55.56%271.057910,70261.5%50.0%
48.00%251.156412,24055.6%43.8%
48.00%251.067712,38353.9%41.7%
52.00%251.662812,78885.7%38.9%
50.00%241.060312,44450.0%50.0%
43.48%232.365011,37142.9%43.8%
66.67%210.953512,17970.0%63.6%
61.90%211.055011,77440.0%81.8%
50.00%203.256110,47566.7%36.4%
52.63%192.768510,84357.1%50.0%
36.84%192.348910,88644.4%30.0%
68.42%190.948110,56760.0%77.8%
50.00%181.867911,74662.5%40.0%
56.25%161.161013,13966.7%53.9%
50.00%162.570111,89633.3%60.0%
40.00%152.564210,30442.9%37.5%
60.00%150.955611,14257.1%62.5%
60.00%151.054312,24550.0%66.7%
35.71%143.860510,44333.3%37.5%
78.57%140.755511,53277.8%80.0%
50.00%142.367814,0250.0%63.6%
76.92%131.259011,95685.7%66.7%
46.15%131.062211,34233.3%57.1%
33.33%123.965810,83060.0%14.3%
58.33%122.367212,66350.0%62.5%
54.55%111.261212,81350.0%57.1%
18.18%111.46089,57425.0%14.3%
40.00%106.091613,3490.0%50.0%
30.00%101.153611,1470.0%37.5%
80.00%100.953710,65175.0%83.3%
80.00%103.779010,76080.0%80.0%
20.00%102.56359,6700.0%33.3%
55.56%96.482710,24225.0%80.0%
77.78%95.68589,02766.7%100.0%
55.56%92.863110,91757.1%50.0%
50.00%81.74278,40250.0%50.0%
37.50%81.162910,30333.3%50.0%
25.00%82.967012,3260.0%33.3%
12.50%81.356612,04920.0%0.0%
42.86%76.41,05414,315100.0%33.3%
71.43%70.963412,88766.7%75.0%
42.86%73.667311,53733.3%50.0%
28.57%72.044610,89966.7%0.0%
33.33%65.661910,14533.3%33.3%
66.67%61.066813,599100.0%50.0%
60.00%54.57557,28666.7%50.0%
40.00%53.58168,90250.0%33.3%
100.00%53.16459,502100.0%100.0%
40.00%56.877012,96250.0%33.3%
60.00%52.977512,178100.0%33.3%
80.00%56.481911,878100.0%66.7%
80.00%51.158712,7300.0%100.0%
20.00%54.789110,36725.0%0.0%
0.00%51.94427,6820.0%0.0%
60.00%56.869910,962100.0%33.3%

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Sejuani vs Sion - Frequently Asked Questions

How does Sejuani do against Sion in League of Legends?

Sion wins the Sejuani vs Sion matchup with a 60.0% win rate compared to Sejuani's 40.0%, a 20.0 percentage point difference. This data is based on 5 recent ranked games in patch 26.11.

How does Sejuani do against Sion in the early game?

In the early game, Sejuani has the advantage against Sion with a 50.0% win rate versus 50.0%. Sejuani players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.

How does Sejuani do against Sion in the late game?

In the late game, Sion takes over the Sejuani vs Sion matchup with a 66.7% win rate compared to 33.3%. Sion scales better into team fights and objective contests after 25 minutes.

Who wins the Sejuani vs Sion matchup?

Sion wins the matchup against Sejuani with a 60.0% win rate in League of Legends patch 26.11. The 20.0 percentage point advantage means Sion is significantly favored in this lane matchup based on 5 games analyzed.

What is the best Sejuani build against Sion?

The best Sejuani build against Sion includes Bloodletter's Curse, Sunfire Aegis, Dusk and Dawn with Plated Steelcaps. Check the matchup breakdown above for the full item path and build order.

What are the best Sejuani runes against Sion?

The best Sejuani runes against Sion use the Sorcery primary tree with Resolve secondary. This rune setup achieves a 100.0% win rate in the Sejuani vs Sion matchup. See the full rune breakdown in the matchup comparison above.

Does Sejuani counter Sion?

No, Sejuani struggles against Sion with only a 40.0% win rate. Sion has the advantage in this matchup. Sejuani players should focus on safe farming and avoiding extended trades to minimize Sion's lead.

How do I play Sejuani against Sion?

When playing Sejuani against Sion, play cautiously and avoid Sion's power spikes. Look for jungle assistance and team-dependent plays since Sion has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.