Who is the best hero in Overwatch on Rialto for Grandmaster players?

Mei currently leads with a 71.2% win rate and 5.8% pick rate on Rialto. Illari and Ana round out the top 3.

Which heroes are S-tier heroes in Overwatch in Grandmaster on Rialto?

S-tier on Rialto: Mei, Illari, Ana, Kiriko.

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 Grandmaster 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 2026-07-19 to 2026-07-25 (7-day rolling window).

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Overwatch Grandmaster Tier List on Rialto (7-day)

Auto-generated Overwatch tier list on Rialto for Grandmaster players, derived from a 7-day window of competitive play. Win-rate and pick-rate weighted, refreshed daily.

Last updated Sat, 25 Jul 2026 16:23:04 GMT · data window 2026-07-19 → 2026-07-25

In Grandmaster competitive Overwatch on Rialto, the current S-tier picks are Mei, Illari, Ana and Kiriko. Rankings combine win rate and pick rate over a 7-day window of ranked play, refreshed daily.

Map

Mei71.2% WR · 5.8% PR · 0.7% BR

Illari63.7% WR · 13.3% PR · 2.5% BR

Ana49.5% WR · 43.3% PR · 9.5% BR

Kiriko49.2% WR · 40.4% PR · 6.5% BR

Jetpack-Cat59.8% WR · 10.6% PR · 14.2% BR

Moira60.9% WR · 6.1% PR · 0.4% BR

D.Va58.7% WR · 10.4% PR · 46.7% BR

Ashe53.3% WR · 22.8% PR · 2.5% BR

Pharah58.4% WR · 6.1% PR · 8.7% BR

Shion55.9% WR · 11.2% PR · 3.4% BR

Doomfist56.4% WR · 8.3% PR · 4.9% BR

Symmetra57.1% WR · 3.2% PR · 0.5% BR

Wuyang55.0% WR · 8.4% PR · 4.2% BR

Soldier: 7651.3% WR · 18.0% PR · 1.9% BR

Baptiste50.0% WR · 20.2% PR · 4.3% BR

Genji53.1% WR · 10.0% PR · 0.4% BR

Wrecking Ball54.8% WR · 5.2% PR · 5.0% BR

Orisa51.7% WR · 13.2% PR · 20.0% BR

Tracer49.6% WR · 17.9% PR · 15.2% BR

Juno53.0% WR · 8.4% PR · 0.1% BR

Sombra54.8% WR · 2.9% PR · 14.8% BR

Freja52.0% WR · 9.7% PR · 24.7% BR

Sigma49.9% WR · 14.3% PR · 14.9% BR

Reaper52.3% WR · 7.1% PR · 5.6% BR

Winston50.1% WR · 8.7% PR · 1.4% BR

Echo50.8% WR · 5.8% PR · 0.5% BR

Widowmaker47.3% WR · 13.9% PR · 43.0% BR

Vendetta51.4% WR · 2.0% PR · 0.3% BR

Hazard49.1% WR · 7.6% PR · 9.3% BR

Mercy47.8% WR · 10.9% PR · 12.2% BR

Brigitte47.2% WR · 10.4% PR · 1.9% BR

Roadhog48.5% WR · 6.4% PR · 6.7% BR

Torbjörn49.3% WR · 3.3% PR · 0.2% BR

Ramattra48.9% WR · 4.1% PR · 3.0% BR

Bastion46.6% WR · 8.3% PR · 4.4% BR

Hanzo47.4% WR · 5.3% PR · 0.4% BR

Cassidy43.3% WR · 16.4% PR · 14.7% BR

Domina48.2% WR · 2.8% PR · 0.2% BR

Mauga46.4% WR · 7.4% PR · 34.5% BR

Emre46.5% WR · 6.8% PR · 0.2% BR

Venture47.9% WR · 2.1% PR · 0.3% BR

Junkrat47.0% WR · 3.7% PR · 0.3% BR

Zenyatta43.9% WR · 10.5% PR · 2.6% BR

Zarya45.5% WR · 4.8% PR · 22.3% BR

Sojourn40.9% WR · 14.2% PR · 0.7% BR

Reinhardt43.6% WR · 6.4% PR · 0.8% BR

Anran44.2% WR · 3.1% PR · 0.4% BR

Lifeweaver42.1% WR · 6.8% PR · 0.3% BR

Mizuki37.7% WR · 8.3% PR · 19.1% BR

Junker Queen38.4% WR · 2.4% PR · 0.4% BR

Sierra38.1% WR · 1.6% PR · 0.3% BR

Lúcio31.2% WR · 2.8% PR · 0.5% 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 Rialto for Grandmaster players?: Mei currently leads with a 71.2% win rate and 5.8% pick rate on Rialto. Illari and Ana round out the top 3.
Which heroes are S-tier heroes in Overwatch in Grandmaster on Rialto?: S-tier on Rialto: Mei, Illari, Ana, Kiriko.
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 Grandmaster 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 2026-07-19 to 2026-07-25 (7-day rolling window).

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