Strategy & Discipline
The Favorite-Longshot Bias (Why Lottery Tickets Lose)
4 min read
TL;DR
Across decades of markets, longshots are systematically overpriced and heavy favorites slightly underpriced — because big payouts are fun to bet. Our own research found the same pattern in props. Respect it.
The most durable bias in betting
People love a $10-wins-$200 story, so they overpay for +2000. Books shade accordingly. The result, documented across sports, racetracks, and decades: longshots return far less than their odds imply, while short-priced favorites are the closest thing to fairly priced.
We verified this on our own graded data: long-odds props underperformed their implied probability by wide margins, while the favorite end of soft prop markets was where measurable calibration edges lived.
What this means for your bets
- That +900 home-run parlay is priced for entertainment, not value — budget it as fun, not strategy
- Boring short favorites are not "no value" by default; they're where mispricing hides most often
- A model that says a -170 should be -200 has found more real value than one hyping a +600
Entertainment is allowed
None of this says never bet a longshot — it says know what you're buying. A small, planned "fun budget" for lottery-ticket bets is honest. Funding them from your core bankroll because the payout is exciting is how the bias eats you.
Keep these
- Longshots are systematically overpriced — decades of evidence
- Value concentrates at the favorite end, especially in soft markets
- Budget longshots as entertainment, never as strategy
Up next
Parlay Math: Fun, Priced Accordingly