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RD2L Season 27

Season 27 of the RD2L (formerly known as Reddit Dota 2 League), a casual Draft League

Kills per minute on average: 1.66153014

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Explain this to me
The page shows a hero's winrates against certain enemies, as well as winrate advantage (difference in winrate compared to overall value). Higher rank and winrate mean opponent is easier for the hero, higher R-Rank means opponent is picked often and is less effective against the hero.
HeroMatchesWinrate
ursaUrsa10652.83%
OpponentRankRev-RankWinrateAdvantageMatchesWonLostExpected matchesDeviationPercentage
kunkkaKunkka100.000.88100.00%47.17%5503240.00%
primal_beastPrimal Beast99.1217.7085.71%32.88%7619-2-28.57%
marciMarci98.2368.1468.75%15.92%1611512425.00%
spirit_breakerSpirit Breaker97.3541.5977.78%24.95%9725444.44%
disruptorDisruptor96.4614.16100.00%47.17%4405-1-25.00%
dawnbreakerDawnbreaker95.5863.7266.67%13.84%128414-2-16.67%
crystal_maidenCrystal Maiden94.6965.4966.67%13.84%12849325.00%
nyx_assassinNyx Assassin94.6965.4966.67%13.84%12849325.00%
snapfireSnapfire92.9242.4875.00%22.17%86215-7-87.50%
leshracLeshrac92.0477.8861.54%8.71%13858538.46%
omniknightOmniknight91.1512.39100.00%47.17%3305-2-66.67%
dragon_knightDragon Knight90.2711.50100.00%47.17%330300.00%
sniperSniper89.3818.5880.00%27.17%5419-4-80.00%
nevermoreShadow Fiend88.5019.4780.00%27.17%5416-1-20.00%
rubickRubick87.6120.3580.00%27.17%5417-2-40.00%
lichLich86.7376.1160.00%7.17%10641000.00%
jakiroJakiro85.8488.5053.85%1.02%13761217.69%
marsMars84.9662.8362.50%9.67%8536225.00%
faceless_voidFaceless Void84.0744.2566.67%13.84%6428-2-33.33%
enigmaEnigma83.1943.3666.67%13.84%642600.00%
phantom_lancerPhantom Lancer82.3045.1366.67%13.84%6423350.00%
night_stalkerNight Stalker81.4278.7655.56%2.73%9546333.33%
pudgePudge80.5394.6942.11%-10.72%1981112736.84%
life_stealerLifestealer79.6521.2475.00%22.17%4316-2-50.00%
clinkzClinkz78.7622.1275.00%22.17%4315-1-25.00%
miranaMirana77.8823.0175.00%22.17%4317-3-75.00%
void_spiritVoid Spirit76.9923.8975.00%22.17%431400.00%
abyssal_underlordUnderlord76.112.65100.00%47.17%2203-1-50.00%
arc_wardenArc Warden75.2210.62100.00%47.17%220200.00%
morphlingMorphling74.3413.27100.00%47.17%2203-1-50.00%
monkey_kingMonkey King74.342.65100.00%47.17%2203-1-50.00%
linaLina72.5767.2657.14%4.31%7439-2-28.57%
earthshakerEarthshaker71.6866.3757.14%4.31%7435228.57%
windrunnerWindranger70.8083.1950.00%-2.83%8444450.00%
queenofpainQueen of Pain69.9147.7960.00%7.17%5323240.00%
chaos_knightChaos Knight69.0346.9060.00%7.17%5324120.00%
dark_willowDark Willow68.1446.0260.00%7.17%5322360.00%
oracleOracle67.2676.9950.00%-2.83%6332466.67%
templar_assassinTemplar Assassin66.3730.0966.67%13.84%321300.00%
shredderTimbersaw65.4928.3266.67%13.84%3212133.33%
dazzleDazzle64.6025.6666.67%13.84%3214-1-33.33%
naga_sirenNaga Siren63.7232.7466.67%13.84%321300.00%
antimageAnti-Mage62.8324.7866.67%13.84%3212133.33%
broodmotherBroodmother62.8328.3266.67%13.84%3212133.33%
beastmasterBeastmaster62.8328.3266.67%13.84%3212133.33%
puckPuck60.1830.0966.67%13.84%321300.00%
razorRazor59.2930.9766.67%13.84%3214-1-33.33%
zuusZeus59.2933.6366.67%13.84%3214-1-33.33%
shadow_shamanShadow Shaman57.5232.7466.67%13.84%321300.00%
juggernautJuggernaut56.6493.8136.36%-16.47%11476545.45%
undyingUndying55.75100.0027.27%-25.56%2261615731.82%
slarkSlark54.8784.0742.86%-9.97%7344342.86%
death_prophetDeath Prophet53.9890.2737.50%-15.33%8359-1-12.50%
phoenixPhoenix53.1057.5250.00%-2.83%4222250.00%
silencerSilencer52.2158.4150.00%-2.83%4228-4-100.00%
obsidian_destroyerOutworld Destroyer51.3359.2950.00%-2.83%4223125.00%
weaverWeaver50.4456.6450.00%-2.83%4225-1-25.00%
viperViper50.4460.1850.00%-2.83%4225-1-25.00%
centaurCentaur Warrunner48.6761.9550.00%-2.83%4223125.00%
axeAxe48.6761.9550.00%-2.83%4223125.00%
slardarSlardar46.9016.81100.00%47.17%1104-3-300.00%
lionLion46.0215.04100.00%47.17%1102-1-100.00%
skywrath_mageSkywrath Mage45.1316.81100.00%47.17%1104-3-300.00%
lycanLycan44.259.73100.00%47.17%110100.00%
magnataurMagnus44.259.73100.00%47.17%110100.00%
invokerInvoker42.487.96100.00%47.17%1103-2-200.00%
pugnaPugna41.597.08100.00%47.17%11001100.00%
chenChen40.716.19100.00%47.17%110100.00%
storm_spiritStorm Spirit39.825.31100.00%47.17%1102-1-100.00%
lunaLuna39.825.31100.00%47.17%1102-1-100.00%
spectreSpectre39.825.31100.00%47.17%1102-1-100.00%
tinyTiny37.1795.5830.00%-22.83%10379110.00%
grimstrokeGrimstroke36.2882.3040.00%-12.83%5233240.00%
ogre_magiOgre Magi35.4081.4240.00%-12.83%523500.00%
vengefulspiritVengeful Spirit34.5180.5340.00%-12.83%5236-1-20.00%
troll_warlordTroll Warlord33.6379.6540.00%-12.83%5232360.00%
witch_doctorWitch Doctor32.7498.2325.00%-27.83%123910216.67%
ember_spiritEmber Spirit31.8689.3833.33%-19.50%6244233.33%
pangolierPangolier30.9792.9228.57%-24.26%7258-1-14.29%
drow_rangerDrow Ranger30.0992.0428.57%-24.26%7255228.57%
venomancerVenomancer29.2097.3522.22%-30.61%9274555.56%
hoodwinkHoodwink28.3235.4050.00%-2.83%2116-4-200.00%
sand_kingSand King28.3235.4050.00%-2.83%2116-4-200.00%
baneBane26.5536.2850.00%-2.83%211200.00%
keeper_of_the_lightKeeper of the Light25.6638.0550.00%-2.83%2111150.00%
brewmasterBrewmaster25.6638.0550.00%-2.83%2111150.00%
rikiRiki23.8938.9450.00%-2.83%211200.00%
doom_bringerDoom23.0139.8250.00%-2.83%2113-1-50.00%
furionNature's Prophet22.1240.7150.00%-2.83%211200.00%
winter_wyvernWinter Wyvern21.2471.6833.33%-19.50%3124-1-33.33%
gyrocopterGyrocopter20.3574.3433.33%-19.50%3122133.33%
terrorbladeTerrorblade20.3570.8033.33%-19.50%3122133.33%
alchemistAlchemist18.5869.0333.33%-19.50%3121266.67%
necrolyteNecrophos17.7073.4533.33%-19.50%312300.00%
svenSven17.7073.4533.33%-19.50%312300.00%
bloodseekerBloodseeker15.9375.2233.33%-19.50%3125-2-66.67%
tidehunterTidehunter15.9369.9133.33%-19.50%3125-2-66.67%
visageVisage14.1691.1520.00%-32.83%514500.00%
rattletrapClockwerk13.2796.4616.67%-36.16%6157-1-16.67%
tuskTusk12.3999.1212.50%-40.33%8179-1-12.50%
warlockWarlock11.5048.670.00%-52.83%1012-1-100.00%
dark_seerDark Seer10.6249.560.00%-52.83%101100.00%
bounty_hunterBounty Hunter9.7384.960.00%-52.83%2023-1-50.00%
medusaMedusa8.8550.440.00%-52.83%1012-1-100.00%
batriderBatrider7.9651.330.00%-52.83%1013-2-200.00%
phantom_assassinPhantom Assassin7.0853.100.00%-52.83%1012-1-100.00%
ancient_apparitionAncient Apparition7.0853.100.00%-52.83%1012-1-100.00%
earth_spiritEarth Spirit5.3186.730.00%-52.83%202200.00%
elder_titanElder Titan4.4255.750.00%-52.83%101100.00%
abaddonAbaddon3.5486.730.00%-52.83%202200.00%
shadow_demonShadow Demon2.6555.750.00%-52.83%101100.00%
wispIo2.6555.750.00%-52.83%101100.00%
skeleton_kingWraith King0.8887.610.00%-52.83%2025-3-150.00%