A Bizarre Run odds calculator (November 2026)
Enter any drop chance and number of rolls to get your odds of at least one hit; A Bizarre Run has no developer-published Stand odds.
The formula
With chance p per roll and n rolls, the chance of at least one hit is 1 − (1 − p)^n. Rolls for a target chance q are ln(1 − q) ÷ ln(1 − p), rounded up. It assumes every roll is independent (no pity system).
Reference: Star Platinum skins
Guide site estimate, not confirmed by the developerBloxodes says these come from the in-game skins menu. We could not check them, and they are not confirmed by the developer. Source: Bloxodes: Star Platinum guide
| Skin roll | Default | Female | Star Platinum OVA |
|---|---|---|---|
| Star Platinum skin |
What you roll in A Bizarre Run
You use a Stand Arrow to get a Stand: it shows three cards and you pick one. To change Stands, a Rokakaka Fruit clears your current one first. Codes often give Spin Tickets, but no source says exactly what they roll. Sources: Community wiki: Stand Arrow · Community wiki: Rokakaka Fruit
The developer has not published Stand odds anywhere we can read: not in the Roblox description, and there is no official Trello.
How to use the calculator
- 1Enter the chance per rollType the drop chance in percent, or tap a number in a reference table to fill it in.
- 2Enter how many rollsType how many keys, arrows, spins or rerolls you plan to use.
- 3Read the resultSee your chance of at least one hit, and how many rolls give a 50% or 90% chance.
Frequently asked questions
What are the Stand odds in A Bizarre Run?
Nobody has a confirmed answer. The developer has not published them, and Bloxodes says its Stand numbers have not been confirmed. Enter your own guess to see what it means over many rolls.
How many Stand Arrows do I need?
If each Arrow has a chance p of giving the Stand you want, you need about ln(0.5) ÷ ln(1 − p) Arrows for a 50% chance. The calculator does this for you.
Does each roll get luckier after a miss?
This calculator assumes every roll is independent, like a fair die. We know of no pity system in A Bizarre Run.
Where do the reference numbers come from?
Only from a named source, labeled as not confirmed by the developer. Numbers without a source are left out.
Sources and last check
- WikiCommunity wiki: Stand ArrowChecked
- WikiCommunity wiki: Rokakaka FruitChecked
- PressBloxodes: Star Platinum guideChecked