The Reality Check: What the Data Actually Shows
We set out to find hidden edges in NBA prop betting. After analyzing 53,923 deduplicated player props from 23 bookmakers, here's the honest truth: betting markets are remarkably efficient.
But that doesn't mean there's nothing to learn. In fact, we found some genuinely actionable insights - they're just more nuanced than "bet all unders and get rich."
Props Analyzed
Bookmakers
Best Edge Found
The Methodology: Getting Clean Data
Our analysis used rigorous data quality filters to ensure accurate results:
Data source: THE LINEUP database containing props from 23 bookmakers (November 2024 - January 2026).
Sample: 53,923 deduplicated props (one prop per player/game/prop type with best available odds) after filtering for:
- Completed games with final box score data
- Players who actually played (10+ minutes)
- Full-game statistics only (not quarter-by-quarter)
Why these filters matter: Raw prop data often includes props for players who didn't play, got injured early, or had minimal minutes. Including these would artificially inflate "under" hit rates since 0 points always goes under any line. We filtered to players with meaningful playing time.
Finding 1: Markets Are Efficient (Mostly)
Here's what the overall numbers show:
Overall Hit Rates by Side
Over Hit Rate
Under Hit Rate
At standard -110 odds, you need 52.4% to break even. With a 52.25% overall under hit rate, flat betting all unders is essentially break-even (-0.24% ROI). Not profitable, but not a disaster either.
What win rate do you need on -110 lines to break even?
The vig takes a cut of every bet you make.
Finding 2: Specific Prop Types Have Real Edges
While overall markets are efficient, some prop types are systematically mispriced:
Unders ROI by Prop Type
Sorted by profitability - blocks unders show a significant edge
| Rank | Strategy | Profit | ROI | Win Rate | Max DD |
|---|---|---|---|---|---|
| Blocks Unders | $1,091 | +26.8% | 66.4% | 0% | |
2 | Threes Unders | $220 | +4.9% | 54.9% | 0% |
3 | Steals Unders | $113 | +2.7% | 53.8% | 0% |
4 | Turnovers Unders | $30 | +1.2% | 53% | 0% |
The blocks edge is real: With a 66.4% hit rate on unders, blocks props show +26.8% ROI even after the -110 juice. This isn't a data artifact - it persists across our full sample.
Why blocks unders work: Blocks are highly variable game-to-game. Books set lines based on averages, but the distribution is heavily skewed - a player averaging 1.5 blocks might get 0-1 in 70% of games and 3+ in 30%. The median outcome is often below the line.
Finding 3: Points and Rebounds Are Efficient
The most popular prop markets - points and rebounds - show no exploitable edge:
Hit Rates: Major Prop Types
Points actually slightly favor overs (51%), and rebounds are nearly 50/50. These markets have the most liquidity and are priced most efficiently.
Finding 4: Combo Props Are Dead Even
PRA (points + rebounds + assists) and other combo props show almost perfect 50/50 splits:
Combo Prop Hit Rates
This makes sense: combo props have built-in diversification that makes outcomes more predictable and lines more accurate.
Actionable Takeaways
Based on our analysis of 53,923 props, here's what actually works:
The clearest edge in our data. Focus on players with lower block averages where lines are set higher than typical outcomes.
Small but consistent edges. May be worth pursuing at scale but won't make you rich.
General Betting Principles
- Don't chase points overs: The most popular bet is NOT the most profitable. Points overs have a slight losing edge.
- Blocks are undervalued: The 66% under hit rate is significant. Books haven't fully adjusted for block variance.
- Combo props are fair: If you want to bet PRA or similar, neither side has an edge. Pick based on your read, not "system" plays.
- Markets are efficient overall: Anyone claiming 30%+ ROI on simple flat-betting strategies is either lying or has bad data.
What About Parlays?
Parlays multiply both your potential upside AND the house edge. With efficient single-bet markets (52.25% under rate), a 3-leg parlay at 50% per leg has:
- Expected hit rate: 12.5%
- Required hit rate to profit at 6:1 payout: 14.3%
The math is tough. Parlays can work if you find legs with genuine edges (like blocks unders), but they won't magically turn break-even bets into winners.
Methodology Note
Data quality matters: Our original analysis contained data quality issues that were inflating under hit rates (including DNP players, quarter stats mixed with full-game stats). This updated analysis uses:
- Full-game stats only (period = 0 in our database)
- Players with 10+ minutes played
- One prop per player/game/type (deduplicated for best odds)
Sample size: 53,923 props from 323 games across the 2024-25 and 2025-26 seasons.
Limitations: Results assume standard -110 odds. Actual platform lines and payouts vary. Past performance doesn't guarantee future results.
Want to find high-confidence props? Check today's projections to identify players with tight projection ranges - they make the most predictable betting targets.
See how these edges play out in practice: View our public track record -- 193,000+ picks tracked with daily P&L