The Two Plays
A quick translation of both, in case either is new.
Twins/Tigers under 8 is a total. You are not betting on who wins. You are betting that the two teams combined score fewer than eight runs. Seven runs wins the ticket, nine loses it. Eight exactly cannot happen against this number because the price is set at a whole eight, so a game that lands on exactly eight is a push and your money comes back.
Toronto Blue Jays ML is a moneyline, which is a bet on who wins the game and nothing else. Not by how much. Just the winner.
The Price Is The Bet
Every price is the sportsbook telling you how often it thinks something happens. Turning a price into that percentage takes ten seconds and it is the single most useful piece of arithmetic in betting.
For a minus price: take the number, divide it by itself plus 100.
-125 becomes 125 divided by 225, which is 55.56 percent.
-193 becomes 193 divided by 293, which is 65.87 percent.
For a plus price: take 100 and divide by the number plus 100. +150 becomes 100 divided by 250, which is 40 percent.
That percentage is your break even. It is the rate you have to hit just to end up level, before anybody talks about profit.
Why Two Bets Is Harder Than Seven
Here is yesterday's card and today's card side by side.
| Card | Plays | To win | At risk | Break even |
|---|---|---|---|---|
| Sunday September 6 | 7 | 10.00 | 12.845 | 56.23% |
| Monday September 7 | 2 | 5.00 | 8.290 | 62.38% |
Nothing about that difference comes from the count. It comes from the prices. Yesterday's card had a +100 leg and two -110 legs pulling the average down. Today's card has a -125 and a -193 and nothing to soften them.
The arithmetic behind the break even is simple. Add up everything at risk, add up everything you stand to win, and divide the risk by the sum of the two.
8.29 divided by (8.29 plus 5.00) equals 0.6238. That is 62.38 percent.
Do that on your own card before you place it. If the answer surprises you, the card is not shaped the way you thought it was.
Units To Win, Not Units At Risk
This trips up almost everybody at the start, and it matters more today than usual.
When a play is written as 3 units at -193, the 3 is the amount being won, not the amount being put up. To win 3 at -193 you have to risk 5.79.
| Play | Price | To win | At risk | Share of the card |
|---|---|---|---|---|
| Toronto Blue Jays ML | -193 | 3.00 | 5.790 | 69.84% |
| Twins/Tigers under 8 | -125 | 2.00 | 2.500 | 30.16% |
| Card | 5.00 | 8.290 |
Look at that last column. Written down, the card reads "3 units and 2 units," which sounds like a card where one bet is half again as big as the other. In money it is more than twice as big. The Blue Jays ticket is nearly 70 percent of everything at stake tonight.
That is what short prices do. They quietly become your biggest position while still looking modest on the page. A -193 favourite dressed as 3 units costs more than a +100 underdog dressed as 5.
What "Needing 62.38 Percent" Actually Means
It does not mean you need to win 62.38 percent of your bets in some abstract lifetime sense. On a two bet card it means something much more concrete, and it is worth spelling out.
| Result | What happens |
|---|---|
| Both win | Up 5.00 units |
| Blue Jays win, under loses | Up 0.50 units |
| Under wins, Blue Jays lose | Down 3.79 units |
| Both lose | Down 8.29 units |
Three of those four rows are decided by the Blue Jays. The under can win and the day can still be a bad one. That is not a flaw in the card, it is just what the shape is, and knowing it before the games start is the difference between a plan and a surprise.
The Habit To Build
Two things, and they take a minute between them.
One. Convert every price to the win rate it needs before you take it. If a bet needs 65.87 percent and you cannot honestly say you think it wins two times in three, do not take it at that price. Look for a smaller one.
Two. Work out what share of your money each bet actually is, not what share the unit number says it is. The count of bets on a card tells you nothing. The risk column tells you everything.
A seven play card at even money is a gentler day than a two play card at -193. Fewer bets is not the same thing as less risk, and today is a clean example of exactly that.