Definition
A standardized stake size used to measure performance independent of bankroll — typically 1% to 2% of a bankroll. Records are tracked in units (e.g. +12.5u) so a handicapper’s results can be compared fairly without knowing dollar amounts.
Related terms
- Return on Investment (ROI) — Net profit in units divided by total units staked, as a percentage. A 5% ROI means 5 units returned for every 100 staked.
- Kelly Criterion — A staking formula that sizes each bet by its edge and odds to maximize long-run bankroll growth. Many use a fraction (half-Kelly) to cut variance.