Introduction to Prop Types
It was Sunday morning, and Eric had one rule: he wouldn't bet a prop unless he could explain, out loud, why that type of prop was beatable.
He pulled up the board and did what most bettors do first: he clicked the stars. Mahomes passing yards. Jefferson receiving yards. A couple of popular NBA points lines for the afternoon slate. Everything was clean, widely discussed, and priced tightly. Eric wasn't surprised. The most popular props are popular for a reason: they're the first place the market gets corrected.
Then he did something most bettors never do: he stopped looking for a pick and started looking for a category.
The Painful Lesson
Eric had learned a painful lesson the season before. He'd gone 4–1 on anytime touchdown bets one weekend and felt invincible. The next three weekends he bled it back, death by a thousand "great spots" that didn't cash. Not because his reads were always wrong, but because those markets didn't behave like the two-way market props he was used to.
Key Insight
A receptions line, a passing yards line, a strikeouts line, and a "Yes" touchdown price might all be called props, but they require different tools, tolerate different errors, and punish bankrolls in different ways.
Eric's Sorting Process
So now, before he even considered a bet, Eric ran a quick sorting process:
- What kind of prop is this—volume or event?
- How efficiently is this prop type priced?
- Does this prop have a clear driver I can estimate?
By the time Eric finished sorting, the board looked different.
He wasn't thinking, "Who is due?" He was thinking, "Which prop types give me a fighting chance to be right often enough at the price I'm paying?"
The Four Working Categories
To keep prop betting practical, we organize the universe of props into four working categories:
| Category | Description | Examples |
|---|---|---|
| Player Performance Props | Individual stats that accumulate over a game | Yards, points, strikeouts, shots |
| Team Props | Team-level statistics | Team totals, team shots, team rushing yards |
| Derivative Props | Event-based outcomes, often one-way markets | Anytime TD, Home Run "Yes," First Basket |
| Micro Props | Very short horizon, situational | Next play/drive outcomes |
Tip
Your edge improves when you specialize in a handful of prop types instead of treating every menu item as equal.
Why Categorization Matters
Understanding which category a prop falls into tells you:
- The variance profile — How much will results swing around your expectation?
- The pricing structure — Is it a two-way market or one-way with hidden vig?
- The modeling approach — What statistical distribution applies?
- The edge source — Where can you realistically outperform the market?
The Volume vs. Event Distinction
One of the most important distinctions is between volume-based props and event-based props:
Volume-Based Props:
- Accumulate throughout the game
- Lower variance (law of large numbers helps)
- More modelable with historical data
- Examples: Passing yards, rebounds, strikeouts
Event-Based Props:
- Binary outcomes (did it happen or not?)
- Higher variance by nature
- Often priced with higher vig
- Examples: Anytime TD scorer, first basket
Warning
Event-based props often have hidden vig because they're structured as one-way markets. A 25% edge on a volume prop is worth more than a 25% edge on an event prop because you can bet it more efficiently.
The Goal: Bet the Right Props
Sportsbooks post an enormous menu of props. The volume creates opportunity, but also noise.
The goal is not to bet more props. The goal is to bet the right props.
Key Insight
Winning at prop betting starts before the bet—by choosing prop types where your edge can survive market efficiency, variance, and pricing structure.
📝 Exercise
Instructions
Test your understanding of the four prop categories and the volume vs. event distinction.
A prop bet on 'Will Patrick Mahomes throw a touchdown in the first quarter?' is best classified as:
Why did Eric stop going 'all-in' on anytime touchdown props after his initial success?
Which of the following is the PRIMARY reason to categorize props before betting them?