Rek'Sai - League of Legends Champion
Win Rate
51.2%
Pick Rate
0.9%

Rek'Saivs Sion

AFighterTank
Patch26.10
Matches1,492,117
LaneAll Lanes
TierAll Tiers
Last UpdatedMay 20, 2026
MethodologyData Methodology

Rek'Sai vs Sion is a decisive matchup in LoL patch 26.10. Sion wins with a 66.7% win rate (+33.3%) over Rek'Sai based on 6 games. Rek'Sai wins the early laning phase while Sion scales better into the late game. Below you'll find the best Rek'Sai build, runes, laning stats, and strategies for the Rek'Sai vs Sion matchup.

Rek'Sai Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Rek'Sai 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
Sion - 33.3% win rateSion(33.3%)
Rek'Sai - 33.3% win rate in this matchup
Rek'Sai
33.3% WR
VS
Sion vs Rek'Sai matchup - 66.7% win rate
Sion
66.7% WR

Who Wins the Rek'Sai vs Sion Matchup?

Sion wins the Rek'Sai vs Sion matchup
Winner
Sion
Matches: 6
33.3%
Win Rate
66.7%
5.5
CS / min
7.8
846
DMG / min
1,069
12,895
Gold / game
16,442
584
Heal / min
481
1,087
DMG Mitigated / min
3,142
1.1
CC / min
1.8
0.0%
Early Game WR
0.0%
33.3%
Late Game WR
66.7%

Rek'Sai vs Sion Matchup Summary

The Rek'Sai vs Sion matchup is a decisive matchup in League of Legends ranked play. Based on 6 recent matches analyzed, Sion wins with a 66.7% win rate compared to Rek'Sai's 33.3%, giving Sion a 33.3 percentage point advantage. Game phase dynamics play a critical role here: Rek'Sai controls the early laning stage, but Sion outscales as the game goes longer. The matchup shifts dramatically depending on game length — Rek'Sai 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 1,952 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Sion has a strong advantage in this matchup. Rek'Sai 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.

Rek'Sai vs Sion Laning Phase Breakdown

Sion wins the laning phase against Rek'Sai in League of Legends

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

Farming
5.5Rek'Sai
7.8Sion
Sion significantly out-farms Rek'Sai by 2.3 CS per minute, accumulating an estimated 35 CS lead by mid game. This substantial farming gap gives Sion a major gold advantage and earlier item completions. Rek'Sai players should prioritize wave management techniques like freezing near tower and using abilities efficiently to minimize the deficit.
Damage
846Rek'Sai
1,069Sion
Sion heavily out-damages Rek'Sai by 223 DMG/min, dominating both short trades and all-in fights. Rek'Sai should avoid extended combat and instead focus on burst trade patterns — short engages followed by immediate disengagement — to avoid letting Sion's sustained damage advantage take over.
Economy
12,895Rek'Sai
16,442Sion
Sion generates a commanding 3,548 more gold per game than Rek'Sai. This substantial economic advantage means Sion consistently reaches key item breakpoints earlier, creating a compounding lead that grows throughout the game. Rek'Sai should focus on cost-effective item choices and avoid unnecessary deaths to prevent falling further behind.
Utility
1.1Rek'Sai
1.8Sion
Sion provides 0.7 seconds more crowd control per minute than Rek'Sai, offering better gank setup potential and slightly more team fight utility. This CC advantage helps Sion coordinate with their jungler and control the pace of skirmishes.
Sustain
1,670Rek'Sai
3,623Sion
Sion vastly out-sustains Rek'Sai, healing and mitigating 1,952 more damage per minute. This massive durability gap means Sion can absorb significant punishment and remain in lane while Rek'Sai is forced to recall. Building grievous wounds early is essential for Rek'Sai, and focusing on burst trade patterns rather than sustained fights is critical.

Best Rek'Sai Build Against Sion

Plated Steelcaps is the optimal boots choice against Sion, providing the mobility and stats Rek'Sai needs most in this matchup. The top-performing core items for Rek'Sai against Sion are Stridebreaker, Spear of Shojin and Black Cleaver. This combination gives Rek'Sai 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 Rek'Sai vs Sion matchup.

Early Game vs Late Game

Early Game
Rek'Sai
0.0%
+0.0% advantage
Rek'Sai early game win rateRek'Sai0.0%
Sion early game win rateSion0.0%
Late Game
Sion
66.7%
+33.3% advantage
Rek'Sai late game win rateRek'Sai33.3%
Sion late game win rateSion66.7%

The early game (first 15 minutes) is a toss-up between Rek'Sai and Sion, with Rek'Sai holding a razor-thin 0.0% 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 Rek'Sai. 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 — Rek'Sai 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 Rek'Sai Runes Against Sion

Resolve rune tree - Rek'Sai primary runes vs SionResolve
Grasp of the Undying - best Rek'Sai rune vs SionDemolish - best Rek'Sai rune vs SionConditioning - best Rek'Sai rune vs SionUnflinching - best Rek'Sai rune vs Sion
Inspiration rune tree - Rek'Sai secondary runes vs SionInspiration
Cosmic Insight - best Rek'Sai rune vs SionBiscuit Delivery - best Rek'Sai rune vs Sion
100.0% WR

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


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

Rek'Sai 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
52.00%1000.861812,40648.9%54.7%
47.87%950.869313,49040.6%51.6%
48.91%920.862711,85447.9%50.0%
49.40%830.971913,33541.7%55.3%
52.56%780.761211,47253.3%51.5%
53.85%780.759212,50440.5%65.8%
50.68%730.767212,18541.9%57.1%
57.97%690.759311,55864.1%50.0%
41.38%580.862412,21842.9%40.0%
45.28%530.859812,76042.9%46.9%
54.72%530.761411,29953.6%56.0%
48.00%500.773512,17460.0%40.0%
52.17%460.968312,79440.0%58.1%
54.55%441.566811,87652.4%56.5%
53.49%430.862412,38544.4%60.0%
41.46%410.863312,55755.6%30.4%
55.00%401.065512,55153.3%56.0%
50.00%401.167512,95762.5%41.7%
56.76%370.769711,92157.9%55.6%
41.18%340.762412,28018.2%52.2%
55.88%340.860012,06858.8%52.9%
48.39%310.761112,23053.9%44.4%
41.94%310.967312,78833.3%50.0%
40.00%300.863613,08153.3%26.7%
55.17%290.963112,38361.5%50.0%
51.72%290.868713,86633.3%64.7%
57.14%280.869012,52456.3%58.3%
59.26%271.368912,34466.7%50.0%
62.50%240.869013,65950.0%68.8%
58.33%240.754012,88888.9%40.0%
56.52%230.874214,03862.5%53.3%
45.45%220.767313,24014.3%60.0%
45.00%200.862912,37945.5%44.4%
70.00%200.761912,20069.2%71.4%
55.00%201.166512,33977.8%36.4%
44.44%183.488012,12771.4%27.3%
29.41%170.884813,64637.5%22.2%
50.00%160.768812,60742.9%55.6%
31.25%162.370113,87550.0%20.0%
43.75%161.964011,06337.5%50.0%
37.50%160.861612,92214.3%55.6%
66.67%154.973710,48960.0%80.0%
53.33%150.556811,18255.6%50.0%
78.57%140.873912,14587.5%66.7%
28.57%142.066312,06250.0%0.0%
35.71%142.04908,99737.5%33.3%
58.33%120.856111,68233.3%83.3%
81.82%111.768613,44375.0%85.7%
63.64%110.862210,94350.0%71.4%
72.73%113.168111,584100.0%40.0%
40.00%100.762812,7540.0%57.1%
50.00%101.460111,59050.0%50.0%
22.22%91.35338,13340.0%0.0%
55.56%91.675913,3640.0%71.4%
44.44%91.65009,74375.0%20.0%
87.50%81.35989,87480.0%100.0%
87.50%82.759810,546100.0%66.7%
62.50%80.974614,07433.3%80.0%
57.14%71.662612,31766.7%50.0%
42.86%72.86879,74340.0%50.0%
50.00%63.054111,56866.7%33.3%
33.33%60.968212,8070.0%40.0%
33.33%65.584612,8950.0%33.3%
33.33%65.36078,87650.0%0.0%
33.33%61.04859,9500.0%50.0%
60.00%52.471712,37950.0%66.7%
40.00%56.596511,59650.0%33.3%
20.00%51.54819,68525.0%0.0%
20.00%50.84558,31825.0%0.0%
40.00%52.473110,76066.7%0.0%
80.00%54.95749,920100.0%50.0%

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Rek'Sai vs Sion - Frequently Asked Questions

How does Rek'Sai do against Sion in League of Legends?

Sion wins the Rek'Sai vs Sion matchup with a 66.7% win rate compared to Rek'Sai's 33.3%, a 33.3 percentage point difference. This data is based on 6 recent ranked games in patch 26.10.

How does Rek'Sai do against Sion in the early game?

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

How does Rek'Sai do against Sion in the late game?

In the late game, Sion takes over the Rek'Sai 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 Rek'Sai vs Sion matchup?

Sion wins the matchup against Rek'Sai with a 66.7% win rate in League of Legends patch 26.10. The 33.3 percentage point advantage means Sion is significantly favored in this lane matchup based on 6 games analyzed.

What is the best Rek'Sai build against Sion?

The best Rek'Sai build against Sion includes Stridebreaker, Spear of Shojin, Black Cleaver with Plated Steelcaps. Check the matchup breakdown above for the full item path and build order.

What are the best Rek'Sai runes against Sion?

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

Does Rek'Sai counter Sion?

No, Rek'Sai struggles against Sion with only a 33.3% win rate. Sion has the advantage in this matchup. Rek'Sai players should focus on safe farming and avoiding extended trades to minimize Sion's lead.

How do I play Rek'Sai against Sion?

When playing Rek'Sai 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.