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ESL One Los Angeles 2020 Open Qualifiers

Dota 2 Pro Circuit major event open qualifiers (Season 2019-2020)

Total couriers killed: 579

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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
windrunnerWindranger1540.00%
OpponentRankRev-RankWinrateAdvantageMatchesWonLost
viperViper100.002.22100.00%60.00%330
centaurCentaur Warrunner97.784.44100.00%60.00%220
linaLina97.7822.22100.00%60.00%220
monkey_kingMonkey King93.3337.7860.00%20.00%532
lichLich91.1128.8966.67%26.67%321
slardarSlardar91.1128.8966.67%26.67%321
snapfireSnapfire86.6784.4450.00%10.00%422
morphlingMorphling84.4420.00100.00%60.00%110
omniknightOmniknight84.4424.44100.00%60.00%110
lone_druidLone Druid84.4420.00100.00%60.00%110
witch_doctorWitch Doctor84.4420.00100.00%60.00%110
earthshakerEarthshaker84.4420.00100.00%60.00%110
ember_spiritEmber Spirit84.4420.00100.00%60.00%110
winter_wyvernWinter Wyvern84.4420.00100.00%60.00%110
lunaLuna84.4420.00100.00%60.00%110
enchantressEnchantress66.6735.5650.00%10.00%211
treantTreant Protector66.6735.5650.00%10.00%211
pangolierPangolier66.6735.5650.00%10.00%211
wispIo60.0091.1133.33%-6.67%312
magnataurMagnus60.0091.1133.33%-6.67%312
puckPuck60.0091.1133.33%-6.67%312
crystal_maidenCrystal Maiden53.3382.220.00%-40.00%101
abyssal_underlordUnderlord53.3382.220.00%-40.00%101
tuskTusk48.8997.780.00%-40.00%202
legion_commanderLegion Commander46.6782.220.00%-40.00%101
arc_wardenArc Warden46.6782.220.00%-40.00%101
void_spiritVoid Spirit46.6782.220.00%-40.00%101
slarkSlark40.00100.000.00%-40.00%404
batriderBatrider37.7897.780.00%-40.00%202
nyx_assassinNyx Assassin35.5682.220.00%-40.00%101
disruptorDisruptor35.5682.220.00%-40.00%101
rubickRubick35.5682.220.00%-40.00%101
ogre_magiOgre Magi35.5682.220.00%-40.00%101
gyrocopterGyrocopter35.5682.220.00%-40.00%101
dark_seerDark Seer35.5682.220.00%-40.00%101
life_stealerLifestealer35.5682.220.00%-40.00%101
leshracLeshrac35.5682.220.00%-40.00%101
phantom_assassinPhantom Assassin35.5682.220.00%-40.00%101
beastmasterBeastmaster35.5682.220.00%-40.00%101
tinkerTinker35.5682.220.00%-40.00%101
vengefulspiritVengeful Spirit35.5682.220.00%-40.00%101
svenSven35.5682.220.00%-40.00%101
razorRazor35.5682.220.00%-40.00%101
nevermoreShadow Fiend35.5682.220.00%-40.00%101
marsMars2.2297.780.00%-40.00%202