Union Jack System Calculator

The Union Jack is a unique system bet involving 9 selections arranged in a 3×3 grid. It doesn’t cover every combination; instead, it forms bets based on the lines of the British flag (3 Horizontal, 3 Vertical, 2 Diagonal).

This creates 8 Groups of 3 selections. Depending on the system you choose, these groups are wagered as Trixies or Patents.

Union Jack System

Enter odds for 9 selections (Grid 1-9).

Result...

The Power of Placement

In a Union Jack, where you place your selections on the grid matters immensely.

Grid Positions:


1 2 3
4 5 6
7 8 9

  • Position 5 (Center): Included in 4 lines (Vertical, Horizontal, 2 Diagonals). Put your strongest “Banker” here.
  • Positions 1, 3, 7, 9 (Corners): Included in 3 lines. Put your next best selections here.
  • Positions 2, 4, 6, 8 (Middles): Included in only 2 lines. Put your riskier longshots here.

System Variations

  • Union Jack Trixie: 8 Trixies. Total 32 Bets. (Requires 2 winners in a single line to return).
  • Union Jack Patent: 8 Patents. Total 56 Bets. (Includes singles, so 1 winner returns something).

Frequently Asked Questions (FAQ)

Is a Union Jack better than a Goliath?

They serve different purposes. A Goliath covers 8 selections exhaustively (every combo). A Union Jack covers 9 selections but selectively (only specific lines). The Union Jack is cheaper per selection but requires your winners to align in rows or diagonals to pay out big.

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