Who is the best hero in Overwatch on Blizzard World for Diamond players?

Shion currently leads with a 57.6% win rate and 40.9% pick rate on Blizzard World. Ashe and Mercy round out the top 3.

Which heroes are S-tier heroes in Overwatch in Diamond on Blizzard World?

S-tier on Blizzard World: Shion, Ashe, Mercy, Zenyatta.

How is this Overwatch tier list calculated?

Heroes are scored from a weighted blend of win rate (70%) and pick rate (30%) across competitive matches in Diamond ranks, with a minimum pick rate of 0.5% to filter out off-meta noise. S/A/B/C/D cutoffs are percentile-based across the resulting score distribution.

How often is the tier list updated?

Daily. The current snapshot covers competitive matches from 2026-06-17 to 2026-07-16 (30-day rolling window).

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Overwatch Diamond Tier List on Blizzard World (30-day)

Auto-generated Overwatch tier list on Blizzard World for Diamond players, derived from a 30-day window of competitive play. Win-rate and pick-rate weighted, refreshed daily.

Last updated Fri, 17 Jul 2026 02:24:32 GMT · data window 2026-06-17 → 2026-07-16

In Diamond competitive Overwatch on Blizzard World, the current S-tier picks are Shion, Ashe, Mercy and Zenyatta. Rankings combine win rate and pick rate over a 30-day window of ranked play, refreshed daily.

Map

Shion57.6% WR · 40.9% PR · 14.4% BR

Ashe53.3% WR · 13.5% PR · 3.0% BR

Mercy52.5% WR · 14.4% PR · 15.8% BR

Zenyatta52.2% WR · 13.7% PR · 2.9% BR

Sigma51.5% WR · 14.9% PR · 6.9% BR

Ana47.2% WR · 38.3% PR · 8.6% BR

Widowmaker52.2% WR · 6.6% PR · 19.6% BR

Wuyang51.5% WR · 7.9% PR · 0.8% BR

Winston51.2% WR · 8.7% PR · 3.7% BR

Doomfist51.2% WR · 8.4% PR · 14.5% BR

Juno50.0% WR · 14.4% PR · 0.3% BR

Soldier: 7649.6% WR · 15.5% PR · 0.9% BR

Kiriko45.7% WR · 37.6% PR · 4.3% BR

Baptiste49.9% WR · 11.7% PR · 0.4% BR

Domina51.0% WR · 4.7% PR · 5.6% BR

Illari49.8% WR · 10.3% PR · 0.8% BR

Mauga50.0% WR · 5.9% PR · 32.8% BR

Anran49.8% WR · 5.3% PR · 6.4% BR

Emre48.8% WR · 9.7% PR · 1.4% BR

Echo49.8% WR · 3.2% PR · 0.5% BR

Reinhardt48.7% WR · 8.9% PR · 1.4% BR

Hazard49.3% WR · 4.7% PR · 9.2% BR

D.Va48.8% WR · 6.8% PR · 40.6% BR

Genji47.6% WR · 10.5% PR · 3.3% BR

Brigitte48.3% WR · 4.8% PR · 0.2% BR

Mizuki46.7% WR · 13.2% PR · 9.1% BR

Venture48.5% WR · 1.5% PR · 0.4% BR

Sombra48.0% WR · 4.0% PR · 38.9% BR

Jetpack-Cat47.3% WR · 5.2% PR · 10.7% BR

Pharah47.7% WR · 2.5% PR · 9.1% BR

Vendetta47.6% WR · 1.3% PR · 1.4% BR

Zarya46.7% WR · 6.3% PR · 28.0% BR

Symmetra47.3% WR · 2.3% PR · 6.7% BR

Cassidy44.4% WR · 17.4% PR · 9.6% BR

Junkrat46.6% WR · 3.6% PR · 0.7% BR

Orisa45.2% WR · 10.9% PR · 17.1% BR

Lifeweaver44.9% WR · 11.8% PR · 0.8% BR

Sojourn44.8% WR · 12.1% PR · 1.6% BR

Torbjörn46.1% WR · 4.0% PR · 0.7% BR

Reaper45.4% WR · 7.5% PR · 4.1% BR

Freja45.9% WR · 3.5% PR · 1.9% BR

Moira44.0% WR · 14.6% PR · 1.7% BR

Wrecking Ball45.3% WR · 5.4% PR · 9.7% BR

Sierra44.7% WR · 8.0% PR · 12.8% BR

Bastion44.4% WR · 9.1% PR · 7.1% BR

Hanzo44.6% WR · 7.3% PR · 1.3% BR

Lúcio44.7% WR · 3.0% PR · 0.1% BR

Ramattra44.1% WR · 5.5% PR · 3.7% BR

Roadhog43.1% WR · 7.5% PR · 11.1% BR

Junker Queen43.0% WR · 2.3% PR · 0.2% BR

Tracer41.1% WR · 8.9% PR · 10.3% BR

Mei40.4% WR · 6.0% PR · 2.0% BR

How tiers are computed

Pick-rate-weighted win rate and average pick rate are z-scored within this slice. Composite score = 0.7 * z(win_rate) + 0.3 * z(pick_rate). Heroes are sorted by score and bucketed by score percentile.

Pick-rate floor: heroes below 0.5% pick rate in the slice are excluded.
Score weights: 0.7 × z(win rate) + 0.3 × z(pick rate).
Tier cutoffs (by score percentile, of 52 eligible heroes): S = top 8% · A = top 17% · B = top 25% · C = top 25% · D = top 25%.

FREQUENTLY ASKED

Who is the best hero in Overwatch on Blizzard World for Diamond players?: Shion currently leads with a 57.6% win rate and 40.9% pick rate on Blizzard World. Ashe and Mercy round out the top 3.
Which heroes are S-tier heroes in Overwatch in Diamond on Blizzard World?: S-tier on Blizzard World: Shion, Ashe, Mercy, Zenyatta.
How is this Overwatch tier list calculated?: Heroes are scored from a weighted blend of win rate (70%) and pick rate (30%) across competitive matches in Diamond ranks, with a minimum pick rate of 0.5% to filter out off-meta noise. S/A/B/C/D cutoffs are percentile-based across the resulting score distribution.
How often is the tier list updated?: Daily. The current snapshot covers competitive matches from 2026-06-17 to 2026-07-16 (30-day rolling window).

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