Explore data-driven Io hard support builds, win rates, and matchup analysis for Dota 2. The optimal build boosts Io's hard support win rate by +14.8% over baseline (50.8% → 65.6%).
Io currently sits at B-Tier in the Hard Support role with a 50.8% win rate in Dota 2 ranked games. A solid, viable pick for this role. Using the optimal hard support build provides a +14.8% win rate advantage over the baseline, lifting Io to 65.6%. Recent winning Io hard support players average a KDA of 2.0 / 8.3 / 19.2. Permanent upgrades support the core item pickups. The toughest matchups for Io hard support are Chaos Knight, Necrophos, Treant Protector — pick into them with caution.
What items Io players buy most often when they win, across all roles. These reflect player picks across all ranked games — not necessarily the optimal build.
Io's win rate when laning against each hero as hard support.
The highest win rate Io Hard Support build achieves a 65.6% win rate. See the full build order — core items and top permanent upgrade — above on this page.
Io Hard Support currently has a 50.8% win rate in Dota 2, climbing to 65.6% with the recommended build.
The toughest matchups for Io Hard Support are Chaos Knight (30.8% WR for Io), Necrophos (31.0% WR for Io), Treant Protector (31.6% WR for Io). These heros give Io the hardest time in lane.
Io Hard Support's recommended permanent upgrade lift the build to 65.6% win rate. See the build display above for the exact picks.
Io is currently a solid, viable pick in the Hard Support role, sitting at B-Tier with a 50.8% win rate. Near 50% indicates balanced performance.