Betting units explained: stake size and record keeping
A unit expresses an amount relative to a declared reference size. It helps describe stakes and results, but only when the unit definition and settlement convention are clear.
Declare what one unit means
If one unit is $20, a 1.5-unit stake is $30. A −0.5-unit result is a $10 loss. These are conversions, not recommendations. Another person can use a different dollar value for one unit, so matching their unit count does not require matching their cash stake.
Write the unit definition next to the record. A fixed-dollar unit, a percentage of the initial bankroll and a percentage of the current bankroll are different conventions. Changing conventions without disclosure makes comparisons difficult.
Risking one unit is not the same as trying to win one
| Convention | Cash risked | Profit if win | Loss if lose |
|---|---|---|---|
| Risk 1 unit | $20.00 | +$13.33 (about +0.667u) | −$20.00 (−1u) |
| To win 1 unit | $30.00 | +$20.00 (+1u) | −$30.00 (−1.5u) |
Both descriptions can appear in betting records. A bare “1u” label is ambiguous unless the service explains whether it means amount risked or target profit. CashCord’s record model uses stake units as the amount risked.
Settle from the recorded stake and odds
For a win, profit in units equals stake units × (decimal odds − 1). A loss is the negative stake. A full refund contributes zero net units. A 2u stake at decimal 2.50 earns +3u if it wins; it does not earn +5u profit. The 5u total return contains the original 2u stake.
Store original odds and stake with the pick. Updating the price after the event or counting a returned stake as profit breaks the meaning of the record. Corrections should retain the original entry and explain the change.
Changing unit size changes the cash interpretation
Suppose one recorded win is +1u when a unit is $10, followed by a −1u loss when a unit is $20. The unit total is zero, but cash profit is −$10. This can happen even when both entries are accurately labeled.
Keep both cash and unit records if the unit value changes. A flat one-unit comparison can help compare selections under a common staking convention, but it still needs complete odds and results and does not recreate actual cash profit.
Avoid reading confidence into a unit label
A larger unit count means more exposure. It does not itself demonstrate better research, a stronger probability estimate or a safer outcome. Use explicit reasoning and complete records to evaluate a selection; use units to describe how much was risked.
Try the numbers yourself.
Open the calculator with this guide’s example inputs. Change one assumption at a time and see what changes.
Open unit converterCommon questions
How many dollars should one unit be?
There is no universal dollar value. The examples are conversions only, not a personal staking recommendation.
Can I add units across different people?
Only with a clear common convention. Different unit values, risk-versus-win labels or incomplete odds can make a combined total misleading.
Sources and example scope
These are declared accounting conventions and original hypothetical examples. CashCord’s public record dataset is currently empty.