Module 4: Decision Making & Betting Psychology

Most losing bets aren’t math problems — they’re psychology problems.

1) Recency Bias

Recency bias causes bettors to overweight the most recent performance.

• A team wins big last week → “They’re unstoppable.”
• A QB throws 3 INTs → “He’s washed.”

One game rarely defines true probability. Markets often overreact.

2) Confirmation Bias

Once you like a team, you search for reasons to justify it.

• Ignoring opposing injury news
• Highlighting only stats that support your view

Smart bettors actively search for reasons they might be wrong.

3) Loss Aversion & Chasing

Humans feel losses more intensely than wins.

• Doubling unit size after losing
• Placing impulsive late-night bets
• Adding extra parlay legs to “make it back”

4) Overconfidence Bias

After a few wins, bettors often increase unit size or expand parlay legs.

Confidence should not change probability.

5) Herd Mentality

Public betting percentages can influence decision-making.

• “Everyone is on this side.”
• Fear of missing out (FOMO)

Markets adjust quickly when the public piles in.

6) Structured Decision Framework

Before adding a leg, ask:

1. What is the implied probability?
2. What is my reasoning in one sentence?
3. What would invalidate this bet?
4. Would I take this as a straight?

7) Pre-Lock Checklist

• Injury updates reviewed?
• Line moved significantly?
• Emotional reaction driving this?
• Unit size consistent?

8) Long-Term Decision Quality

Great bettors measure decision quality, not short-term results.

• Did I follow my framework?
• Was my reasoning logical?
• Did I respect bankroll limits?

Practice Exercise

1. Create one straight bet.
2. Write one reason it might lose.
3. Confirm unit size follows your bankroll rule.
4. Reassess 30 minutes before lock.