Mini-Academy

How betting actually works.

Short, calm lessons. Nothing assumed. No jargon left undefined.

Lesson 012 min read

How to read American odds

A negative number is what you'd risk to win $100. A positive number is what you'd win on a $100 bet. The further from zero, the bigger the implied edge for one side.

Lesson 023 min read

What the vig actually is

Books price both sides so the implied probabilities add up to more than 100%. That extra is the vig — the house's margin. De-vigging strips it out to find the true fair line.

Lesson 033 min read

Why most bettors lose

Not because they pick wrong — because they pay too much for every pick. Beating the vig long-term requires positive expected value, not just winning bets.

Lesson 044 min read

Bankroll discipline

A unit is 1–2% of your total bankroll. Sizing every play the same protects you from one cold streak ending the season. Quarter-Kelly is the sweet spot.

Lesson 053 min read

Why chasing kills you

After a loss, the brain wants to make it back fast. That's when you take bad numbers, force plays, and turn a bad day into a bad month. The slow way is the only way.

Lesson 064 min read

Closing Line Value (CLV)

If you consistently bet a number better than where the market closes, you're beating the people who set the lines. That's the truest sign of skill in sports betting.