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Grand Blue (Roblox) Reroll Planner

Your odds of a Mythic race from bulk rerolls, and Trait Reroll stacking strategy.

ByGrand Blue Roblox WikiSite Maintainer: CTReroll Planner
Last updated:
Chance of ≥1 Mythic race
0.00%
with 0 race rerolls
Expected rolls for a Mythic
≈ 667
at 0.15% per roll
Reference: chance of a Mythic race by reroll count
10 rerolls1.49%
20 rerolls2.96%
50 rerolls7.23%
100 rerolls13.94%
200 rerolls25.93%
500 rerolls52.79%
1000 rerolls77.71%

The 0.15% Mythic race rate is creator-verified; the formula is exact math. Trait odds are not yet published, so bulk-roll your 0 Trait Rerolls from codes (FruitBasket, NewYouNewCrew) without expecting a fixed percentage. Always confirm live results in-game.

Races & Traits →Get Reroll Codes →Fruit Spawn Timer →

Frequently Asked Questions

What are the real Mythic race odds?

The Mythic race sits at roughly 0.15% per roll (creator-verified). The planner applies the exact formula 1 − (1 − 0.0015)^n, so 100 race rerolls give about a 13.98% chance of at least one Mythic.

Do Trait rerolls use the same odds?

Trait rarity odds are not yet published. The planner tracks your Trait Reroll count for bulk-rolling strategy, but does not show a fixed percentage — stack code grants (FruitBasket, NewYouNewCrew) and confirm traits in-game.

Where do rerolls come from?

Codes. HappySunday grants 20 Race Rerolls; FruitBasket and NewYouNewCrew grant Trait Rerolls. Save several drops and roll in bulk rather than one at a time.