Renata Glasc, League of Legends champion
Win Rate
51.0%
Pick Rate
0.8%
Ban Rate
0.3%

Renata Glascvs Janna

Renata Glasc A TierSupportMage
Patch26.19
Games702
LaneAll Lanes
TierAll Tiers
Last UpdatedOct 2, 2026 UTC
MethodologyData Methodology

Renata Glasc vs Janna is a decisive matchup in LoL patch 26.19. Renata Glasc wins with a 58.1% win rate (+16.1%) over Janna based on 31 games. Renata Glasc holds the advantage in both the early and late game. Below you'll find the best Renata Glasc build, runes, laning stats, and strategies for the Renata Glasc vs Janna matchup.

Renata Glasc Matchup Breakdown

Use the dropdown to select an opponent and see a detailed breakdown of how Renata Glasc 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
Renata Glasc
Renata Glasc
55.8%
VS
Janna
44.2%
Janna

Who wins Renata Glasc vs Janna?

Slight Renata Glasc edgeLow confidence

Renata Glasc wins 55.8% of these games. With this many games the true rate is most likely between 42.3% and 68.4% (95% range).

Expected
48.9%
From both champions' overall Support win rates
Matchup effect
+6.9 pts
Observed minus expected
Sample
52 games
Lane: Support
vs patch 26.18
—
Not enough games on both patches

Lane: Support · Ranked Solo/Duo & Flex · North America server · All ranks · Patch 26.19 · Sep 24 – Sep 28

Key takeaways

  • Current data slightly favors Renata Glasc, but the sample is too limited for a strong conclusion: Renata Glasc wins 55.8% of 52 games (95% range 42.3–68.4%).
  • Both champions' overall Support win rates predict 48.9% for Renata Glasc; the result is within the margin of error of that, so this matchup mostly reflects the two champions' general strength.
  • Janna usually wins the lane: 246 gold ahead of Renata Glasc at 15 minutes on average (51 games with a 15-minute snapshot).
  • Renata Glasc players pick Shurelya's Battlesong much less often against Janna: 44.3% of their other Support games, 23.1% here.
How we calculate this

Games: ranked Solo/Duo and Flex games on the North America server from the patch shown. Remakes (games under 5 minutes) are excluded.

A game only counts when Renata Glasc and Janna played the same position on opposite teams, so roaming, lane swaps within a team or a champion merely being in the same game never count as this matchup.

The 95% range is a Wilson score interval. Confidence comes from how wide that range is: within ±3 points is very high, ±5 high, ±8 moderate, anything wider low. Below 20 games a matchup is not classified at all.

Expected win rate combines both champions’ win rates in this lane (same games and filters) with the log5 formula: E = A(1−B) / (A(1−B) + B(1−A)). Matchup effect = observed − expected.

"What changes" compares Renata Glasc's choices in this matchup with the same champion's other games in the same lane, and lists a change only when it is at least 3 points and statistically significant (two-proportion z-test, |z| ≥ 2, 20+ games).

Results are not split by rank: the sample per rank is too small for honest per-rank matchup numbers.

Renata Glasc vs Janna Laning Stats

Renata GlascJanna

At 15 minutes

Gold difference
−246
Janna ahead
95% range −421 to −72
XP difference
−162
Within the margin of error
95% range −367 to +43
CS difference
+1.6
Within the margin of error
95% range −0.4 to +3.7
0.55
Kills before 15 min
0.96
2.16
Deaths before 15 min
1.78
0.02
Solo kills before 15 min
0.02
3.8%
First blood
3.8%

Whole-game averages

1.1
CS / min
1.0
303
DMG / min
276
8,246
Gold / game
8,441
120
Heal / min
358
590
DMG Mitigated / min
341
0.9
CC / min
1.4

Renata Glasc vs Janna Win Rate by Game Length

Renata Glasc's win rate against Janna by game length. The dot is the win rate, the bar its 95% range and the dashed line the champion's usual win rate at that length. Lengths with fewer than 25 games are left blank.

Too few games
Under 20 min
4 games
Too few games
20–25 min
10 games
Too few games
25–30 min
20 games
Too few games
30–35 min
9 games
Too few games
35+ min
9 games
Renata Glasc vs Janna95% rangeRenata Glasc usual (Support)

No game length stands out: Renata Glasc's results against Janna in short and long games are within the margin of error of each other.

Renata Glasc vs Janna Power Spikes

Who is ahead at each stage, measured from these games. A stage reads "Even" when the difference is inside the margin of error, and "Insufficient data" when there are too few games to tell.

  1. Lane (15 min)JannaRenata Glasc gold at 15: −246
  2. First itemEvenRenata Glasc: 12.9 min · Janna: 12.9 min
  3. Games under 20 minInsufficient data
  4. 20–30 min gamesInsufficient data
  5. 30+ min gamesInsufficient data

What Renata Glasc Changes Against Janna

Choices Renata Glasc players make noticeably more or less often in this matchup than in their other Support games.

  • Shurelya's Battlesong
    Usually
    44.3%
    vs Janna
    23.1%
    −21.3 pts
  • Imperial Mandate
    Usually
    45.3%
    vs Janna
    28.8%
    −16.5 pts
  • Health PotionHealth PotionStealth Ward
    Health Potion + Health Potion + Stealth WardStarting items
    Usually
    50.1%
    vs Janna
    64.7%
    +14.6 pts54.5% WR here
  • Attack Speed (offense)
    Attack Speed (offense)Stat shard
    Usually
    69.2%
    vs Janna
    55.8%
    −13.4 pts58.6% WR here
  • Overgrowth
    Usually
    2.5%
    vs Janna
    9.6%
    +7.1 pts
  • Plated Steelcaps
    Usually
    4.7%
    vs Janna
    11.5%
    +6.8 pts
  • Health Scaling (flex)
    Health Scaling (flex)Stat shard
    Usually
    3.9%
    vs Janna
    9.6%
    +5.7 pts
  • Second Wind
    Usually
    2.4%
    vs Janna
    7.7%
    +5.3 pts

Best Renata Glasc Build vs Janna

Usual Renata Glasc build (Support)

90.0% win rate · 10 games

Against Janna

Not enough matchup-specific build data: only 2 of 14 Renata Glasc games against Janna carried a complete build, which is too few to recommend an item path from. Use Renata Glasc's standard build instead.

  • Renata Glasc usually completes Locket of the Iron Solari first, at 12.9 min (median of 32 games).
  • Janna usually completes Moonstone Renewer first, at 12.9 min (median of 31 games).
  • Skill priority: E > W > Q — the same as usual.

Builds are ranked by the lower edge of their win rate range, not the raw win rate, so a build seen in a handful of wins never outranks a proven one.

Best Renata Glasc Runes vs Janna

Usual Renata Glasc runes (Support)

GuardianGuardian
Resolve
Shield BashBone PlatingUnflinching
Domination
Sixth SenseRelentless Hunter
Attack Speed (offense)Adaptive Force (flex)Health Scaling (defense)

61.9% win rate · 63 games

Against Janna

Too few games for a matchup-specific rune page yet — use the usual page.

MetaBot Desktop

Plan your Renata Glasc draft in Draft Lab

Draft Lab lays out both teams lane by lane with live matchup win rates, damage profiles and game-phase lean, and suggests picks and bans from current meta data.

  • Full 5v5 draft board
  • Lane matchup win rates
  • Pick and ban suggestions
Draft Lab in MetaBot Desktop

Renata Glasc matchup data for League of Legends patch 26.19. The table below shows Renata Glasc'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 Renata Glasc build, runes, laning stats, and early vs late game analysis for that specific matchup.

Other Renata Glasc Matchups

Win rate and games for each matchup. Lists are ranked by the edge of the 95% range so small samples cannot top them; matchups with at least 50 games only.

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Renata Glasc vs Janna FAQ - Patch 26.19

Who wins Renata Glasc vs Janna?

Current data slightly favors Renata Glasc, but the sample is too limited for a strong conclusion: Renata Glasc wins 55.8% of 52 games (95% range 42.3–68.4%).

What is Renata Glasc's win rate against Janna?

Renata Glasc wins 55.8% of 52 Support games against Janna on patch 26.19 (95% range 42.3–68.4%). Based on both champions' overall Support win rates, 48.9% would be expected.

Does Renata Glasc counter Janna?

Not clearly. Renata Glasc wins 55.8% of 52 games against Janna, and the 95% range (42.3–68.4%) includes 50%, so neither champion reliably counters the other on current data.

Who wins lane, Renata Glasc or Janna?

Janna usually wins the lane: 246 gold ahead of Renata Glasc at 15 minutes on average (51 games with a 15-minute snapshot).

Does Renata Glasc outscale Janna?

There are too few games of each length to tell yet.

When is Janna strongest against Renata Glasc?

Janna is measurably ahead in: Lane (15 min).

What should Renata Glasc build against Janna?

There are not enough games for a matchup-specific core, so use Renata Glasc's usual Support core: Imperial Mandate, Redemption, Bandlepipes. The biggest change against Janna: Shurelya's Battlesong (44.3% usually, 23.1% here).

What runes should Renata Glasc use against Janna?

Use Renata Glasc's usual Guardian page (Resolve + Domination); there are too few games for a matchup-specific page. The biggest change against Janna: Attack Speed (offense) (69.2% usually, 55.8% here).