Tools
Betting calculators.
The math Big Mike’s engine runs on every line, as free tools. No sign-up, no tracking of what you punch in.
Odds Converter
American to decimal to implied probability, instantly. The implied number is the one that matters: it's the win rate you need just to break even.
Parlay Calculator
Enter each leg, get the combined odds and payout. Then look at what the combined implied probability says about your chances.
EV Calculator
The only number that matters long-term. Enter the price and your true win probability; the calculator tells you who has the edge.
Kelly Calculator
How much to bet when you have an edge. Full Kelly maximizes long-run growth; almost everyone should bet a fraction of it.
Hedge Calculator
Your futures ticket is live and the other side is priced. This tells you the exact stake that locks the same profit whichever way it lands.
Hold Calculator
Enter both sides of a market and see the book's cut — plus what the fair, no-vig price would be. This is the math Big Mike runs on every line.
The Big Mike hotline
Big Mike runs this math on every line, then texts you the ones worth taking.
Text(870) 244-6453Mispriced lines, injury alerts, and results — in your iMessage before the window closes.
