How does the Slip Builder rank picks?

Every MLB player prop on tonight's board is converted from the best available sportsbook price into an implied win probability, vig included. Higher probability means the market itself likes that side. No separate model, no black box.

How is my entry's EV calculated?

The builder enumerates every possible hit/miss combination of your picks, weighs each by the picks' market probabilities, and applies your payout multipliers. The result is the exact expected value per $100 entered, so a Power or Flex slip is graded before you play it.

Are the payout multipliers current?

Defaults match common Power and Flex tables, and every multiplier is editable so you can match the exact payout your app shows today.

🃏 The Slip Builder · the market's own read, vig included

Hand-pick a slip the market actually likes.

Every MLB prop tonight, ranked by real win probability from the best price at any book. Tap ＋ to stack picks — the slip grades itself: exact hit chance and EV per $100 for Power or Flex, before you play it.

🧾 YOUR SLIP

👇 Your slip is empty — tap the ＋ on any prop below to add your first leg. Stack the picks the market grades highest.

Scanning tonight's board…

🎓 Why this tool wins ▾

Pick'em apps pay you like every pick is a coin flip. A 3-pick Power pays the same 5x whether your picks are 45% shots or 62% shots. The sportsbook market prices every one of those props to the cent — this board simply shows you that price as a win percentage, vig included.
The whole edge is selection. Stack picks the market grades 🟢 POWER GRADE (58%+) and a 3-pick 5x flips from a donation into a positive-EV play. That's the entire trick — and most players never check.
Win % is the market's own number. Best available price on that prop across every book, converted to implied probability. No model, no black box, no guru — just what the sharpest money in the world says.

🧭 How to work it into your routine ▾

1. Filter to a market you know. Hits and total bases post the deepest boards; strikeouts are the steadiest.
2. Stack 3–4 picks at or above the break-even shown under the meter — the fewer legs, the less variance eats you.
3. Read the meter before you play. 🟢 PLAYABLE means the math is on your side over the long run; 🔴 HOUSE SIDE means skip it or rebuild.
4. Cross-check a big number on the full props board or the Probability Board before locking.
5. Log every entry in The Receipt. Ten graded slips will tell you more about your game than any hot streak.

⚠️ The honest fine print ▾

Vig is included. These probabilities carry the book's margin, so they run a touch pessimistic — which means a 🟢 grade here is a conservative green light, not an optimistic one.
Same-game picks are correlated. Two hitters in one lineup rising and falling together makes the slip's true hit chance drift from the pure multiplication shown. Spread picks across games for the cleanest math.
Check the line matches. The board shows sportsbook lines; your pick'em app's line can differ by half a base or a strikeout. Same line = same bet. Different line = re-check.
Bankroll rule: 1–1.5% of bankroll per entry. Nothing on this page beats variance in one night — the edge shows up over a season.

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Hand-pick a slip the market actually likes.

🧾 YOUR SLIP