MLB Player Prop Lines for 2026-05-21: 16,013 markets across 13 sources
16,013 player prop markets posted by 13 sources for MLB games on 2026-05-21. Real numbers from our live feed.
Sources covering MLB on 2026-05-21
13 distinct sportsbooks and DFS apps posted player prop lines for MLB games today. Total markets across all sources: 16,013. The list below is sorted by depth of coverage. Source-by-source coverage matters because cross-book line shopping is where the edge lives in props.
| Source | Total markets | Distinct players | Distinct prop types |
|---|---|---|---|
| Bovada | 3,540 | 77 | 55 |
| FanDuel | 2,877 | 47 | 20 |
| Bet365 | 2,855 | 59 | 23 |
| Caesars | 1,495 | 44 | 20 |
| DraftKings | 1,459 | 44 | 17 |
| Novig | 1,415 | 46 | 18 |
| Hard Rock | 953 | 44 | 13 |
| Fanatics | 885 | 41 | 11 |
| BetMGM | 271 | 24 | 17 |
| Pinnacle | 110 | 5 | 3 |
| ProphetX | 54 | 17 | 9 |
| BetRivers | 50 | 5 | 3 |
| parx | 49 | 5 | 3 |
Most-covered players (multi-source)
Players whose props are covered by at least 2 sources today. These are the players where line shopping pays off, because the more books quote a market, the wider the dispersion you can exploit.
| Player | Market | Sources | Avg line |
|---|---|---|---|
| Total | totals | 10 | 8.4 |
| Athletics | moneyline | 10 | — |
| Los Angeles Dodgers | moneyline | 10 | — |
| Los Angeles Angels | spreads | 10 | 1.5 |
| Los Angeles Angels | moneyline | 10 | — |
| Athletics | spreads | 10 | -1.5 |
| Los Angeles Dodgers | spreads | 10 | -1.5 |
| San Diego Padres | spreads | 10 | 1.5 |
| San Diego Padres | moneyline | 10 | — |
| Gavin Sheets | player hits | 9 | 0.4 |
| Freddie Freeman | player hits | 9 | 0.4 |
| Manny Machado | player hits | 9 | 0.4 |
| Freddy Fermin | player hits | 8 | 0.4 |
| Teoscar Hernandez | player hits | 8 | 0.4 |
| Freddie Freeman | player total bases | 9 | 1.2 |
| Nick Castellanos | player hits | 9 | 0.4 |
| Xander Bogaerts | player hits | 9 | 0.4 |
| Miguel Andujar | player hits | 9 | 0.4 |
| Ramon Laureano | player hits | 8 | 0.4 |
| Mookie Betts | player hits | 8 | 0.5 |
| Andy Pages | player hits | 8 | 0.4 |
| Shohei Ohtani | player total bases | 8 | 1.2 |
| Jackson Merrill | player hits | 8 | 0.4 |
| Andy Pages | player total bases | 9 | 1.1 |
| Kyle Tucker | player hits | 9 | 0.4 |
Pull this data via API
# All props for baseball_mlb today curl "https://parlay-api.com/v1/sports/baseball_mlb/props?date=2026-05-21" \ -H "X-API-Key: YOUR_KEY" # Filter to a specific player + market curl "https://parlay-api.com/v1/sports/baseball_mlb/props?player=Aaron%20Judge&market=batter_home_runs" \ -H "X-API-Key: YOUR_KEY"
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