Heroes · rolling 7 days
Rat King

Win rate
55.8%
95% CI 55.7–55.9
Pick rate
4.6%
share of matches
Matches
537,324
last 7 days
Win-rate rank
#2
of 44 ranked
This week vs last week
Genuinely weaker this week — win rate down about 1.0 points (56.8% → 55.8%). This is a real move, not random weekly noise.
p < 0.000001 — the odds a swing this big is just luck — low enough to clear our bar for calling a change real.
Lane partners that matter
- Victor64.1% · +970 souls @15m
- Graves64.0% · +543 souls @15m
- Kelvin60.9% · +305 souls @15m
- Paige60.8% · +244 souls @15m
- Baba60.6% · +629 souls @15m
- Seven60.1% · +407 souls @15m
Duo-lane pairings over the last 14 days. Listed only when the win rate is provably off 50% AND at least 2 points from even — a 50.4% duo over 100k games is true but not worth your pick.
By rank
54.7% Low · 55.1% Mid · 53.3% High
Rat King really falls off with rank — a 1.4pp gap that clears our significance bar. All heroes by rank →
Matchups that matter · real and ≥2 points off even
Struggles against
No matchup is both real and at least 2 points off even this window.
Only matchups whose win rate is far enough off an even 50% to be real over 43 tested opponents (Bonferroni-corrected). A big edge on few games is a wide error bar, not a counter — those stay hidden.
Teammates that matter · real and ≥2 points off even
Best paired with
Drags down
No matchup is both real and at least 2 points off even this window.
Duo win rate on the same team, shown only where it's significantly off 50% over 43 tested partners (Bonferroni-corrected). Correlational, not causal — good players may simply favour the pairing.
Most-built items
FortitudeT310,795
JuggernautT410,625
Spirit ResilienceT310,350
Enduring SpeedT29,728
Extra HealthT19,661
Siphon BulletsT49,622
Opening RoundsT29,359
Plated ArmorT49,326
WitchmailT49,283
BerserkerT39,140
High-Velocity RoundsT18,843
Superior CooldownT38,767
Ranked by how often players include the item in a Rat King build (deadlock-api.com). This is popularity, not win rate — open an item to see whether it's actually winning.
Most-played skill order
The order players spent ability points most often on Rat King — 78,903 matches, 61% win rate. Popularity, not a recommendation.
Win rate is over a rolling 7-day window; the trend compares it to the 7 days before, with a Bonferroni-corrected two-proportion z-test so a normal weekly wobble isn't reported as a shift. Data from deadlock-api.com, refreshed hourly.