Sion - League of Legends Champion
Win Rate
51.8%
Pick Rate
3.1%

Sionvs Kai'Sa

STankFighter
Patch26.10
Matches683,599
LaneAll Lanes
TierAll Tiers
Last UpdatedMay 18, 2026
MethodologyData Methodology

Sion vs Kai'Sa is a decisive matchup in LoL patch 26.10. Kai'Sa wins with a 60.0% win rate (+20.0%) over Sion based on 5 games. Kai'Sa wins the early laning phase while Sion scales better into the late game. Below you'll find the best Sion build, runes, laning stats, and strategies for the Sion vs Kai'Sa matchup.

Sion Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Sion 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
Kai'Sa - 40.0% win rateKai'Sa(40.0%)
Sion - 40.0% win rate in this matchup
Sion
40.0% WR
VS
Kai'Sa vs Sion matchup - 60.0% win rate
Kai'Sa
60.0% WR

Who Wins the Sion vs Kai'Sa Matchup?

Kai'Sa wins the Sion vs Kai'Sa matchup
Winner
Kai'Sa
Matches: 5
40.0%
Win Rate
60.0%
6.5
CS / min
7.2
717
DMG / min
844
11,225
Gold / game
11,515
286
Heal / min
131
2,237
DMG Mitigated / min
438
1.2
CC / min
0.0
0.0%
Early Game WR
100.0%
66.7%
Late Game WR
33.3%

Sion vs Kai'Sa Matchup Summary

The Sion vs Kai'Sa matchup is a decisive matchup in League of Legends ranked play. Based on 5 recent matches analyzed, Kai'Sa wins with a 60.0% win rate compared to Sion's 40.0%, giving Kai'Sa a 20.0 percentage point advantage. Game phase dynamics play a critical role here: Kai'Sa controls the early laning stage, but Sion outscales as the game goes longer. The matchup shifts dramatically depending on game length — Kai'Sa 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 crowd control, where Sion leads by 1.2s CC/min — a difference that heavily influences the outcome of trades and skirmishes. Kai'Sa has a strong advantage in this matchup. Sion players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Kai'Sa 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.

Sion vs Kai'Sa Laning Phase Breakdown

Kai'Sa wins the laning phase against Sion in League of Legends

Kai'Sa is favored during the laning phase against Sion, winning 3 out of 5 key stat categories. Kai'Sa holds advantages in farming, damage and gold income, making them the stronger laner in this matchup.

Farming
6.5Sion
7.2Kai'Sa
Kai'Sa edges out Sion by 0.8 CS per minute — a moderate farming advantage that adds up to roughly 11 CS over a 15-minute laning phase. This translates to earlier component purchases and slightly faster power spikes for Kai'Sa.
Damage
717Sion
844Kai'Sa
Kai'Sa heavily out-damages Sion by 127 DMG/min, dominating both short trades and all-in fights. Sion should avoid extended combat and instead focus on burst trade patterns — short engages followed by immediate disengagement — to avoid letting Kai'Sa's sustained damage advantage take over.
Economy
11,225Sion
11,515Kai'Sa
Sion and Kai'Sa generate nearly equal gold per game, with just a 290 gold difference. Neither champion has a clear economic advantage, so gold leads will depend on individual play quality, kill participation, and objective contributions.
Utility
1.2Sion
0.0Kai'Sa
Sion brings significantly more crowd control than Kai'Sa, with 1.2 more seconds of CC per minute. This large utility gap makes Sion far more valuable in setting up jungle ganks, controlling objectives, and locking down targets in team fights. Kai'Sa should invest in tenacity and position carefully to avoid being chain-CC'd.
Sustain
2,523Sion
569Kai'Sa
Sion vastly out-sustains Kai'Sa, healing and mitigating 1,954 more damage per minute. This massive durability gap means Sion can absorb significant punishment and remain in lane while Kai'Sa is forced to recall. Building grievous wounds early is essential for Kai'Sa, and focusing on burst trade patterns rather than sustained fights is critical.

Best Sion Build Against Kai'Sa

Boots of Swiftness is the optimal boots choice against Kai'Sa, providing the mobility and stats Sion needs most in this matchup. The top-performing core items for Sion against Kai'Sa are Hollow Radiance, Heartsteel and Unending Despair. This combination gives Sion an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 1 games — well above average and making it the top item path against Kai'Sa. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Sion vs Kai'Sa matchup.

Early Game vs Late Game

Early Game
Kai'Sa
100.0%
+100.0% advantage
Sion early game win rateSion0.0%
Kai'Sa early game win rateKai'Sa100.0%
Late Game
Sion
66.7%
+33.3% advantage
Sion late game win rateSion66.7%
Kai'Sa late game win rateKai'Sa33.3%

Kai'Sa dominates the early game (first 15 minutes) with a commanding 100.0% win rate — a 100.0 percentage point lead over Sion. This lopsided early game means Kai'Sa can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.

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

This matchup features a dramatic power shift: Kai'Sa must aggressively press their early advantage and close out the game before Sion reaches their scaling breakpoints. If Sion 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 Sion Runes Against Kai'Sa

Resolve rune tree - Sion primary runes vs Kai'SaResolve
Grasp of the Undying - best Sion rune vs Kai'SaDemolish - best Sion rune vs Kai'SaConditioning - best Sion rune vs Kai'SaOvergrowth - best Sion rune vs Kai'Sa
Precision rune tree - Sion secondary runes vs Kai'SaPrecision
Legend: Haste - best Sion rune vs Kai'SaTriumph - best Sion rune vs Kai'Sa
100.0% WR

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


Sion matchup data for League of Legends patch 26.10. The table below shows Sion'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 Sion build, runes, laning stats, and early vs late game analysis for that specific matchup.

Sion matchup win rates and stats in League of Legends patch 26.10
Opponent
Win Rate
Matches
CS/min
DMG/min
Gold/game
Early WR
Late WR
55.09%2167.172212,18460.0%51.6%
43.13%1607.277812,04548.2%40.4%
48.46%1306.678711,24646.4%50.0%
49.56%1137.179113,28242.1%53.3%
48.51%1016.883412,06646.1%50.0%
52.58%977.092812,69762.2%46.7%
60.92%877.181212,53664.7%58.5%
53.57%847.579512,58262.9%46.9%
51.81%837.579212,20741.2%59.2%
49.32%737.01,08812,07365.6%36.6%
47.22%726.786112,21139.1%51.0%
43.66%717.288612,49548.3%40.5%
53.52%716.283511,54044.4%59.1%
54.29%706.898912,53956.7%52.5%
49.25%678.079612,23843.5%52.3%
55.22%677.381413,68981.8%42.2%
57.81%647.081112,28871.4%47.2%
46.03%636.281212,55951.7%41.2%
44.44%636.264911,93956.0%36.8%
42.86%636.978811,49050.0%36.4%
50.00%606.886512,30952.4%48.7%
44.83%587.177612,06164.3%26.7%
57.41%547.099212,02955.6%59.3%
47.17%536.787512,99050.0%46.0%
57.69%526.683912,49445.5%61.0%
53.06%497.392313,15670.6%43.8%
55.32%477.277312,34468.8%48.4%
42.55%477.080312,99646.7%40.6%
45.65%466.785212,37547.4%44.4%
51.11%456.982811,78454.2%47.6%
43.18%446.676913,08750.0%39.3%
63.64%446.978811,65750.0%75.0%
45.24%426.01,00411,54855.6%37.5%
48.78%417.090812,04942.1%54.5%
37.50%405.793512,56025.0%45.8%
51.28%396.776413,07811.1%63.3%
58.33%366.284913,28875.0%45.0%
30.56%366.789912,31030.8%30.4%
52.78%367.182611,65756.3%50.0%
57.14%354.488413,09669.2%50.0%
35.29%346.978311,30831.6%40.0%
53.13%325.772512,16269.2%42.1%
65.63%327.598212,19270.0%58.3%
35.48%316.779113,06028.6%37.5%
61.29%316.588012,59246.1%72.2%
44.83%296.466112,71360.0%36.8%
34.48%296.892514,63055.6%25.0%
65.52%296.883611,33153.3%78.6%
53.57%286.775811,53757.1%50.0%
70.37%277.380111,53984.6%57.1%
55.56%274.272011,60544.4%61.1%
55.56%274.165211,40975.0%40.0%
38.46%266.577110,67245.5%33.3%
57.69%266.484211,12450.0%62.5%
52.00%255.077512,31328.6%61.1%
52.00%257.368911,02556.3%44.4%
45.83%247.185214,53160.0%42.1%
66.67%246.762911,09066.7%66.7%
47.83%236.883511,97966.7%35.7%
60.87%232.573112,22683.3%52.9%
50.00%227.474213,03966.7%43.8%
59.09%227.175111,52077.8%46.1%
50.00%225.079213,48742.9%53.3%
42.86%214.482512,76744.4%41.7%
31.58%192.091213,25833.3%30.8%
63.16%193.073411,82670.0%55.6%
52.63%192.883315,34366.7%50.0%
55.56%187.182010,46744.4%66.7%
55.56%186.573412,26380.0%46.1%
72.22%187.076812,91877.8%66.7%
66.67%185.971911,99675.0%60.0%
47.06%175.784313,80785.7%20.0%
64.71%175.298412,79875.0%61.5%
52.94%173.666710,44771.4%40.0%
47.06%174.168610,30542.9%50.0%
18.75%162.270310,93542.9%0.0%
43.75%166.790411,61442.9%44.4%
31.25%167.567912,19850.0%20.0%
37.50%163.673410,22057.1%22.2%
68.75%163.586511,93675.0%66.7%
50.00%162.567911,49280.0%36.4%
50.00%165.98578,70150.0%50.0%
53.33%156.569011,33460.0%50.0%
60.00%152.380810,31860.0%60.0%
46.67%156.476811,93455.6%33.3%
33.33%154.284813,66320.0%40.0%
64.29%147.975911,44150.0%75.0%
35.71%147.573111,82760.0%22.2%
23.08%132.685113,54750.0%18.2%
46.15%135.083112,40850.0%42.9%
58.33%126.190911,64550.0%66.7%
50.00%126.560611,17940.0%57.1%
41.67%125.984611,61575.0%25.0%
33.33%123.872510,66340.0%28.6%
41.67%122.06339,43540.0%50.0%
58.33%127.291515,318100.0%44.4%
27.27%115.495812,90625.0%28.6%
63.64%112.470712,59533.3%75.0%
63.64%116.372810,74450.0%80.0%
30.00%106.981712,82750.0%25.0%
44.44%92.562711,07550.0%33.3%
22.22%92.975011,04940.0%0.0%
33.33%95.378913,1960.0%50.0%
55.56%96.990511,37175.0%40.0%
55.56%91.95919,6910.0%83.3%
44.44%96.574811,35740.0%50.0%
25.00%82.45757,21928.6%0.0%
62.50%81.882111,42150.0%75.0%
50.00%82.681311,50333.3%60.0%
75.00%81.475811,92950.0%100.0%
50.00%82.879315,17866.7%40.0%
71.43%77.373014,61466.7%75.0%
85.71%72.081612,072100.0%83.3%
85.71%74.767013,40950.0%100.0%
85.71%76.086914,66166.7%100.0%
57.14%74.975112,96166.7%50.0%
71.43%77.570011,74833.3%100.0%
28.57%75.998012,8970.0%40.0%
28.57%77.189513,19466.7%0.0%
57.14%76.587515,31333.3%75.0%
66.67%65.568311,80366.7%66.7%
50.00%62.56919,91040.0%100.0%
16.67%63.493310,0220.0%33.3%
50.00%66.172111,15525.0%100.0%
50.00%61.590313,4840.0%75.0%
16.67%66.694211,84350.0%0.0%
50.00%65.876214,3380.0%100.0%
33.33%62.653712,28550.0%25.0%
33.33%66.375011,77733.3%33.3%
66.67%61.758611,202100.0%50.0%
60.00%52.26209,36166.7%50.0%
40.00%56.571711,2250.0%66.7%
60.00%54.294813,025100.0%33.3%
60.00%53.968010,05966.7%50.0%
40.00%50.872112,71050.0%33.3%
60.00%54.779815,2160.0%60.0%
60.00%52.275210,16633.3%100.0%
40.00%52.867912,912100.0%25.0%
60.00%57.873214,654100.0%50.0%

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Sion vs Kai'Sa - Frequently Asked Questions

How does Sion do against Kai'Sa in League of Legends?

Kai'Sa wins the Sion vs Kai'Sa matchup with a 60.0% win rate compared to Sion's 40.0%, a 20.0 percentage point difference. This data is based on 5 recent ranked games in patch 26.10.

How does Sion do against Kai'Sa in the early game?

In the early game, Kai'Sa has the advantage against Sion with a 100.0% win rate versus 0.0%. Kai'Sa players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.

How does Sion do against Kai'Sa in the late game?

In the late game, Sion takes over the Sion vs Kai'Sa 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 Sion vs Kai'Sa matchup?

Kai'Sa wins the matchup against Sion with a 60.0% win rate in League of Legends patch 26.10. The 20.0 percentage point advantage means Kai'Sa is significantly favored in this lane matchup based on 5 games analyzed.

What is the best Sion build against Kai'Sa?

The best Sion build against Kai'Sa includes Hollow Radiance, Heartsteel, Unending Despair with Boots of Swiftness. This build achieves a 100.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.

What are the best Sion runes against Kai'Sa?

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

Does Sion counter Kai'Sa?

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

How do I play Sion against Kai'Sa?

When playing Sion against Kai'Sa, play cautiously and avoid Kai'Sa's power spikes. Focus on safe farming — you outscale Kai'Sa in the late game. Use the matchup-specific build and runes above to optimize your chances.