If you have seen "1u," "+2.5u," or "risk 1 unit" on a tip sheet and weren't sure what it meant, here is the short version.
What is a unit in betting?
A unit is your standard bet size. One unit (1u) is whatever dollar amount you treat as a normal wager.
It is not a fixed number that everyone uses. Your 1u might be $10. Someone else's might be $50 or $100. The label "1u" just means "one normal stake," so people can compare records without comparing bankrolls.
How to choose your unit size
A common starting point is 1% to 2% of your bankroll per unit.
Examples:
- $500 bankroll → 1u = $5 to $10
- $2,000 bankroll → 1u = $20 to $40
- $5,000 bankroll → 1u = $50 to $100
Pick a number you can survive through a cold streak. Then leave it alone for a while. Changing unit size every week makes your results harder to read.
Why bettors talk in units instead of dollars
Units solve three problems:
1. Comparability. A +20u season means something across different bankrolls. "+$200" does not, unless you know the stake size.
2. Ego control. Saying "I lost 3u" hurts less than staring at a dollar figure, which helps some people stick to process.
3. Record honesty. When every play is logged as 1u (or a clear fraction), you can audit the sheet. No "I only bet half on that dog" after the fact.
We use flat 1u risk per play on Daily Picks Free for that last reason. Same stake. Public grading. See flat unit betting explained for the full system.
What about 0.5u or 2u?
Some handicappers size up on "stronger" opinions. That can work if the sizing rule is written down before the bet. Most recreational bettors do better with one size.
If you do vary size:
- Write the rule first (for example: only 2u when edge is above X%).
- Never size up mid-streak because you "feel due."
- Still publish results in units so readers can follow the math.
We stick to flat 1u on the public card so the record page stays easy to verify.
Units vs American odds
Units describe how much you risk. Odds describe how much you win if you are right.
At -110, risking 1u wins about 0.91u if it hits. At +150, risking 1u wins 1.5u if it hits. Your unit is the stake; the line decides the payout.
For how we turn model win probability into moneyline edge, read what is moneyline edge.
Quick FAQ
What do units mean in betting?
A unit is a standardized stake size so results can be tracked without depending on anyone's personal bankroll. 1u is one standard bet.
Is 1u the same as $1?
No. 1u is your unit. Dollars are whatever you map onto that unit.
Should I bet 1u on every MLB pick?
If you are learning or following a model card, yes. Flat sizing keeps variance readable. See understanding variance in MLB betting.
1u means one standard bet sized to your bankroll. Pick a unit you can live with through a losing stretch, keep it consistent, and track results in units so the record stays honest. That is how we post and grade the free Pick of the Day.