How Mars and Io perform as teammates in Dota 2 7.41e, from ranked matches.
In Dota 2 7.41e, Mars and Io win 43.58% of ranked matches when playing on the same team, over 358 matches.
Struggling to control the map early often puts this pair on the back foot. Mars is a hero who needs key items like a Blink Dagger before he can truly dictate the pace of the game, and Io doesn't do much to accelerate his farm. This can lead to a passive phase where they give up objectives waiting for Mars to come online. Even when they are ready to fight, their kits have poor overlap. Io’s Tether provides buffs that are largely wasted on Mars, who relies on spell burst, not sustained attacks. Committing Relocate for an Arena of Blood is a huge risk that often doesn't pay off, leaving both heroes exposed and with their ultimates on cooldown.
How this pairing performs across skill brackets — the duo's team win rate in recent ranked matches, split by average match rank. Ranks with too few recent matches are omitted. These rows use the last 30 days of quality-filtered ranked matches, all patches in that span combined — a wider window than the patch-scoped count above, so the per-rank match totals can exceed it.
| Rank | Team win rate | Matches |
|---|---|---|
| Crusader & Archon | 45.74% | 317 |
| Legend & Ancient | 48.65% | 296 |
| Divine & Immortal | 44.30% | 149 |
This duo's team win rate in each recent balance patch — whether the pairing is trending up or down. Patches without enough matches are omitted.
| Patch | Team win rate | Change | Matches |
|---|---|---|---|
| 7.41e | 43.58% | ▼ -3.7pp | 358 |
| 7.41d | 47.25% | ▲ +0.7pp | 24,891 |
| 7.41c | 46.53% | ▲ +0.2pp | 14,414 |
| 7.41b | 46.38% | — | 16,249 |
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Data updated Aug 11, 2026.