MLB Line Shopping Opportunities for 2026-07-21
Top 20 MLB player props by line dispersion on 2026-07-21. Where books disagree, line shopping pays.
Where the books disagree most today
The table below ranks MLB player props on 2026-07-21 by line dispersion (the gap between the lowest and highest line offered by any book). Wider gaps = more line-shopping value, more potential +EV. Computed from MLB prop closing lines pulled from 20 active sources.
| Player | Market | Sources | Line range | Avg | Over price range |
|---|---|---|---|---|---|
| Total | totals | 10 | 1.5 - 16.5 | 9.3 | -603 to 325 |
| Chicago White Sox | spreads | 10 | -7.5 - 4.0 | -1.6 | -1250 to 445 |
| Texas Rangers | spreads | 10 | -4.0 - 7.5 | 1.6 | -668 to 539 |
| Seattle Mariners | spreads | 10 | -8.5 - 2.0 | -3.2 | -10000 to 750 |
| Cincinnati Reds | spreads | 10 | -2.0 - 8.5 | 3.2 | -1600 to 1000 |
| Jacob deGrom | player strikeouts alt | 5 | 3.0 - 12.0 | 7.2 | -6600 to 1760 |
| George Kirby | player strikeouts alt | 5 | 3.0 - 12.0 | 7.2 | -5000 to 1660 |
| Jazz Chisholm | player hits runs rbis | 3 | 0.5 - 9.5 | 3.6 | -357 to 397 |
| Detroit Tigers | spreads | 10 | -5.5 - 3.0 | -1.6 | -10000 to 351 |
| Houston Astros | spreads | 10 | -5.5 - 3.0 | -2.0 | -5000 to 372 |
| Chicago Cubs | spreads | 10 | -3.0 - 5.5 | 1.6 | -498 to 700 |
| Miami Marlins | spreads | 10 | -3.0 - 5.5 | 2.0 | -572 to 575 |
| Yordan Alvarez | player total bases | 11 | 1.5 - 9.5 | 3.0 | -175 to 293 |
| St. Louis Cardinals | spreads | 10 | -4.5 - 3.0 | -0.8 | -8600 to 750 |
| Los Angeles Angels | spreads | 10 | -3.0 - 4.5 | 0.8 | -2000 to 1220 |
| Athletics | spreads | 10 | -4.5 - 3.0 | -0.8 | -1001 to 398 |
| Arizona Diamondbacks | spreads | 10 | -3.0 - 4.5 | 0.8 | -581 to 608 |
| Jack Flaherty | player strikeouts alt | 5 | 3.0 - 10.0 | 6.4 | -2500 to 1600 |
| Kyle Leahy | player strikeouts alt | 5 | 3.0 - 10.0 | 5.8 | -2000 to 1600 |
| Chase Burns | player strikeouts | 3 | 4.5 - 11.5 | 7.7 | -2000 to 1497 |
Get +EV opportunities programmatically
# Pre-computed +EV bets (Pro tier) curl "https://parlay-api.com/v1/sports/baseball_mlb/ev?min_edge=0.02&date=2026-07-21" \ -H "X-API-Key: YOUR_KEY" # Pre-computed cross-book arbitrage (Pro tier) curl "https://parlay-api.com/v1/sports/baseball_mlb/arbitrage?min_profit=0.005&date=2026-07-21" \ -H "X-API-Key: YOUR_KEY"
For information only. Sports betting carries risk. Past dispersion doesn't guarantee future +EV.
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