Sports betting, actually explained.

Profitable sports betting comes down to one thing: the price you got vs the true probability of the event. That's it.

If a coin flip was priced at +120, you'd fire every time - because the true probability is 50% but the market is paying you like it's 45%. That gap is your edge.

Every "system" you'll ever hear about is just a way to estimate true probability better than the book. Understand this, and you've already beaten 80% of bettors.

That -110 standard juice = 4.76% vig. That's the tax. You must be right more than 52.4% of the time on coin-flip-priced bets just to break even.

A unit is 1% of your bankroll. If your bankroll is $1,000, one unit is $10. Non-negotiable. Write it down.

Why %? Because variance is brutal. Flat-dollar betting blows up on a 5-game losing streak. % betting adapts - you bet less when you're down, more when you're up. You can't go broke if every bet is a percentage of what you have left.

Most cappers publish plays as 1u, 2u, 3u, etc. You pick your bankroll, do the math, and stake accordingly. The capper never touches your money.

• ▸Never risk more than 5% of bankroll on one bet. Doesn't matter how confident you are. Variance doesn't care.
• ▸Redefine your bankroll every 30 days. Up 20%? Your unit size grows. Down 20%? Your unit size shrinks. Adapt.
• ▸Your bankroll is money you can lose. If losing it would hurt your rent, your bankroll is too big.
• ▸Never chase. Doubling up after a loss is how people go broke. Every bet is its own universe.

1. Gambler's fallacy. "It's gotta hit soon" - no. Independent events don't balance out. A coin doesn't "owe" you heads.
2. Outcome bias. Good bets lose. Bad bets win. Stop grading by result, start grading by process.
3. Hindsight bias. "I knew it" - you didn't. If you did, you'd have bet it heavier.
4. Loss aversion. The urge to chase after a loss is 2x stronger than the urge to lock in a win. Close the app after a rough day.
5. Tilt. Emotional bets. Bets out of boredom. Bets on the worst line because you want action. Recognize the feeling, don't act on it.

Tracking. Every bet. Sport, line, odds, stake, result. For months. Nothing else works without this.

You think you're +13 units this year. Your log says you're -4. The log doesn't lie.

We built a free tracker: /tracker. No signup needed. Your data stays on your device.

• ✗Chase parlays with 6+ legs. The house edge compounds. A 6-leg parlay at -110 each pays +6000 but should pay +7000+ to be fair.
• ✗Bet on your favorite team. You're biased. Fade yourself.
• ✗Use one sportsbook. The same line varies across books - line shopping can save you 2-4% on every bet. Free edge.
• ✗Bet during live broadcasts without reviewing the line. Books tilt the price during games knowing you're emotional.
• ✗Buy "locks" for $500. If anyone had guaranteed winners, they'd bet millions themselves, not sell picks on Venmo.

Read this guide twice. Then start tracking with the free tracker. When you're serious about finding your edge, the Academy covers line shopping, CLV, Kelly sizing, and sport-specific edges.