Sports pool crossover bracket calculator

Calculate cross-pool knockout pairings and bracket match count with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use cross-pool knockout pairings and bracket match count to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

JSON Pool A ordered qualifying team IDs
["A1","A2"]
JSON Pool B ordered qualifying team IDs
["B1","B2"]
Cross-pool knockout pairings
[["A1","B2"],["A2","B1"]]
Bracket match count
2

Try another scenario

JSON Pool A ordered qualifying team IDs
["A3","A2"]
JSON Pool B ordered qualifying team IDs
["B1","B2"]
Cross-pool knockout pairings
[["A3","B2"],["A2","B1"]]
Bracket match count
2
Calculation method

Calculation method

Cross-pool knockout pairings

J([[a[i],b[len(b)-1-i]] for i in range(len(a))])

Bracket match count

len(a)

Symbols and units
a
JSON Pool A ordered qualifying team IDs
b
JSON Pool B ordered qualifying team IDs

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Equal-sized qualifying pools, explicit top-vs-bottom crossover: A rank i plays B rank n+1−i. Qualification and rematch restrictions must be applied before entry; no universal tournament rule. Supported limits: All numeric inputs must be finite. Only the explicitly described mathematical scenario is supported.
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These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

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