Mutalisk Harass
Detected when a Spire into 6+ Mutalisks (no Baneling Nest) runs pure muta harass into the Protoss mineral lines.
53.5% win rate over 86 ladder games with 12 starting workers
n = 86 games from 5 players · Stats updated Sep 30, 2026
Across 86 ZvP ladder games from 5 players with 12 starting workers, Mutalisk Harass wins 53.5% of decided games. The likely range for its true win rate is 43.0–63.6%, so it is too close to call against a coin flip. It appears in 5.2% of the 1,662 ZvP games in the guide sample. This guide is newly published, so there is no weekly trend yet. This is still a small sample (n = 86), so treat it as a directional read.
Your record with this build
What it beats and loses to
Win rate against each opponent opener, ranked by the low end of its likely range.
| Opponent opener | Win rate | Games |
|---|---|---|
| Stargate Opener | 42.2%likely range 29.0–56.7% | 45 |
When it wins
Win rate by game length: does the build close games early or pay off late?
| Group | Win rate | Likely range (95%) | Games |
|---|---|---|---|
| 10–15 min | 64.1% | 48.4–77.3% | 39 |
Common macro leaks
Average macro score 58.3 over 86 games from 5 players.
- Supply Blockedin 100.0% of games86 of 86
- Mineral Floatin 90.7% of games78 of 86
- Inject Efficiencyin 55.8% of games48 of 86