Io

How Io is doing in ranked games, and what works with it and against it.

Patch 7.41fRanked games from

Io wins 50.0% of ranked All Pick games, over 139,384 games. That's 0.8 pts more than the week before.

Dotier's verdictOur analysis, not Valve's or Steam's
Win rate50.0%
Games139,384
Most played asHard support · 53%

Win rate by rank

Ranked All Pick, last full week, smoothed so small samples sit closer to 50%.

  • HeraldHerald49.0%2,341
  • GuardianGuardian49.7%10,393
  • CrusaderCrusader48.8%19,843
  • ArchonArchon50.1%29,428
  • LegendLegend49.5%32,939
  • AncientAncient50.5%23,874
  • DivineDivine51.7%13,970
  • ImmortalImmortal51.6%6,596

Where it's played

Share of its games in each position, and its win rate there.

  • Carry7% of games42.0%2,908
  • Mid20% of games49.4%8,822
  • Offlane2% of games48.3%1,079
  • Soft support18% of games49.5%7,833
  • Hard support53% of games49.1%23,451

Matchups

Measured against what both heroes' overall strength predicts, so a strong hero doesn't top every list.

Good against

Io beats these heroes more often than expected.

  1. Naga Siren8.4 pts better than expected
    60.2%463
  2. Spectre5.0 pts better than expected
    52.7%2,809
  3. Phantom Lancer5.0 pts better than expected
    52.0%4,702
  4. Elder Titan4.3 pts better than expected
    53.6%303
  5. Dazzle3.1 pts better than expected
    52.5%2,243
  6. Abaddon2.9 pts better than expected
    51.8%855
  7. Pangolier2.5 pts better than expected
    56.4%1,074
  8. Storm Spirit2.5 pts better than expected
    55.7%1,855

Countered by

These heroes beat Io more often than expected.

  1. Troll Warlord6.0 pts better than expected
    57.3%841
  2. Underlord4.1 pts better than expected
    51.8%1,342
  3. Ancient Apparition4.1 pts better than expected
    55.2%2,866
  4. Lycan3.9 pts better than expected
    52.3%479
  5. Kez3.9 pts better than expected
    49.0%1,602
  6. Chen3.8 pts better than expected
    49.4%167
  7. Techies3.6 pts better than expected
    54.3%1,635
  8. Gyrocopter3.1 pts better than expected
    49.3%1,080
Find counters to Io

Teammates

Teams with both heroes, against what each one's strength predicts.

Best with

Io wins more than expected next to these heroes.

  1. Leshrac9.2 pts better than expected
    61.9%5,302
  2. Techies5.8 pts better than expected
    57.4%1,177
  3. Muerta5.2 pts better than expected
    53.2%1,077
  4. Pugna4.1 pts better than expected
    55.3%891
  5. Primal Beast4.0 pts better than expected
    53.3%1,357
  6. Visage3.8 pts better than expected
    57.9%586
  7. Enchantress3.7 pts better than expected
    51.1%529
  8. Luna3.1 pts better than expected
    53.9%4,789

Worst with

Io wins less than expected next to these heroes.

  1. Naga Siren8.7 pts worse than expected
    40.4%328
  2. Bloodseeker5.1 pts worse than expected
    47.5%849
  3. Lycan5.0 pts worse than expected
    44.2%459
  4. Terrorblade4.3 pts worse than expected
    42.0%1,166
  5. Void Spirit4.0 pts worse than expected
    46.2%1,027
  6. Storm Spirit3.6 pts worse than expected
    43.9%1,446
  7. Faceless Void3.6 pts worse than expected
    45.3%1,578
  8. Juggernaut3.6 pts worse than expected
    49.4%3,779

Items

What Io players buy, how often, and how those games go.

Starting items

Share of games starting with each item.

  • TangoTango82%
  • Iron BranchIron Branch66%
  • Blood GrenadeBlood Grenade48%
  • Magic StickMagic Stick43%
  • Faerie FireFaerie Fire31%
  • Sentry WardSentry Ward23%
  • Ring of RegenRing of Regen21%
  • Observer and Sentry WardsObserver and Sentry Wards18%

Boots

Share of games buying each, the average time, and the win rate.

  • Arcane BootsArcane Boots20% of games · on average at 25:4456.1%12,647
  • Guardian GreavesGuardian Greaves15% of games · on average at 32:5559.7%9,568
  • Boots of SpeedBoots of Speed5% of games · on average at 20:4151.8%3,504

Core items

Items of 1,400 gold or more. The time is the median first purchase; the two win rates split those games at that minute.

  • MekansmMekansm56% of games · usually at 15:00By 15:00: 54.3%Later: 49.0%52.0%36,534
  • Holy LocketHoly Locket44% of games · usually at 20:00By 20:00: 59.4%Later: 52.0%55.8%28,262
  • Aghanim's ScepterAghanim's Scepter36% of games · usually at 16:00By 16:00: 55.4%Later: 44.1%49.9%23,297
  • Glimmer CapeGlimmer Cape21% of games · usually at 28:00By 28:00: 60.0%Later: 49.9%55.4%13,720
  • Black King BarBlack King Bar20% of games · usually at 24:00By 24:00: 56.9%Later: 43.6%51.1%12,986
  • Shiva's GuardShiva's Guard14% of games · usually at 28:00By 28:00: 66.6%Later: 51.7%59.6%9,072
  • Helm of the DominatorHelm of the Dominator7% of games · usually at 9:00By 9:00: 51.4%Later: 42.4%47.2%4,268
  • PerseverancePerseverance6% of games · usually at 29:00By 29:00: 59.2%Later: 57.8%58.9%3,870
  • Heart of TarrasqueHeart of Tarrasque6% of games · usually at 36:00By 36:00: 68.4%Later: 63.6%66.8%3,789

Talents

Each level's two options: how often each is picked over the other, and its win rate.

  1. Attack Tethered Ally's Target (=50% damage)100% picked · 61.4% wonLevel 25
  2. +0.2% Overcharge Max HP Regen Bonus18% picked · 58.8% won-30s Relocate Cooldown82% picked · 59.0% wonLevel 20
  3. +5% Tether Movement Speed40% picked · 60.2% won+40%% Spirits Damage60% picked · 53.8% wonLevel 15
  4. +1.5s Overcharge Duration83% picked · 51.9% won+8 Strength17% picked · 47.8% wonLevel 10

Last eight weeks

Ranked All Pick win rate by week.

  1. Oct 1, 202650.0%139,389
  2. Sep 24, 202649.3%132,756
  3. Sep 17, 202649.3%143,381
  4. Sep 10, 202648.9%104,522
  5. Sep 3, 202648.8%128,313
  6. Aug 27, 202648.3%183,803
  7. Aug 20, 202647.3%220,280
  8. Aug 13, 202647.7%235,106

Io in short

The quick version of this page, from the last full week of ranked games.

What is Io's win rate?

50.0% in ranked All Pick games, over 139,384 games. That's 0.8 pts more than the week before.

What counters Io?

Troll Warlord, Underlord, and Ancient Apparition beat Io more often than their overall strength predicts. The clearest is Troll Warlord: 6.0 pts better than expected, over 841 games.

Which heroes is Io good against?

Io beats Naga Siren, Spectre, and Phantom Lancer more often than expected. The clearest is Naga Siren: 8.4 pts better than expected, over 463 games.

What position is Io played in?

Mostly hard support (53% of its games), then mid (20%). See the best hard support heroes

What should I build on Io?

Most games start with Tango, Iron Branch, and Blood Grenade. The usual boots are Arcane Boots and Guardian Greaves. The most bought core items are Mekansm, Holy Locket, Aghanim's Scepter, and Glimmer Cape.

How we read this

Every number here is our analysis of STRATZ's game counts for the last full week of ranked games: win rates are smoothed toward what's expected, matchups and teammates are compared with both heroes' overall strength, and item timings come from first purchases. STRATZ's own scores aren't used.

Data from STRATZ