Odds API by market / MLB
MLB Singles API
Live batter_singles odds across every book that posts it, in one REST call — and, unlike any other odds API, every one of those outcomes settled against the official result once play ends.
No credit card. 1,000 requests / day on the free tier.
What MLB singles is
Singles only. A batter who homers twice records zero here, which is what makes it price differently from hits.
How we settle it. Graded against singles in the batting stat group.
Every number on this page is measured against the live API, never copied from a spec sheet. Last measured 16 August 2026.
Books posting MLB singles
Measured live, not listed from a spec. Coverage moves — a book that has not put its board up yet will not appear until it does, which is exactly what this list is for.
Line shopping across all of them is one request — every book arrives in the same bookmakers array, not one call per book. Add ?bookmakers= to narrow it, or use /best-line for the best price per line already ranked.
Recently settled MLB singles outcomes
These are real rows out of the API, not an illustration. Each one was a price on a board before the event and carries the actual figure it was graded against afterwards. No other odds API returns that last column — they stop at the price.
19,985 singles outcomes settled in the last 4 days across 9 books. The 12 most recent:
| Player | Bet | Actual | Result |
|---|---|---|---|
| Carter Jensen | Over 0.5 | 1.0 | won |
| Isaac Collins | Over 0.5 | 0.0 | lost |
| John Rave | Over 0.5 | 0.0 | lost |
| Bobby Witt Jr. (KC) | Bobby Witt Jr. (KC) | 0.0 | lost |
| Carter Jensen (KC) | Carter Jensen (KC) | 1.0 | won |
| Isaac Collins (KC) | Isaac Collins (KC) | 0.0 | lost |
| Denzer Guzman | Over 0.5 | 0.0 | lost |
| Jac Caglianone | Over 0.5 | 0.0 | lost |
| Michael Massey | Over 0.5 | 2.0 | won |
| Bobby Witt Jr. | Over 0.5 | 0.0 | lost |
| Bobby Witt Jr. | Under 0.5 | 0.0 | won |
| Carter Jensen | Over 0.5 | 1.0 | won |
Over/Under split, last 4 days
The Over won 40.6% of 7568 decided singles lines (3069 over, 4499 under). Computed from the settled rows themselves, scoped to MLB only.
Read off 8,219 Over legs out of 19,985 settled outcomes on this market. The rest are Unders and milestone legs (“1+”, “2+”) that some books price here too, and a threshold rung is not an Over.
A few days of one market describes a few days — it is not an edge. Pull the full history through /exports/resolved-props for a sample worth modelling on.
Live response
Captured from the real endpoint on Boston Red Sox @ Pittsburgh Pirates, trimmed to one book and three outcomes so the shape stays readable. The full response carries every book and every line, alternates included, in the same call.
{
"id": "138811",
"sport_key": "baseball_mlb",
"home_team": "Pittsburgh Pirates",
"away_team": "Boston Red Sox",
"commence_time": "2026-08-16T17:35:00Z",
"live": true,
"last_update": "2026-08-16T22:44:42.595376Z",
"bookmakers": [
{
"key": "betmgm",
"title": "BetMGM",
"last_update": "2026-08-16T22:44:05.431020Z",
"link": null,
"book_event_id": null,
"markets": [
{
"key": "batter_singles",
"last_update": "2026-08-16T17:38:01.503436Z",
"period": null,
"suspended_at": null,
"outcomes": [
{
"name": "Over",
"description": "Adley Rutschman",
"price": 105,
"point": 0.5,
"book_updated_at": null,
"book_version": null,
"payout_multiplier": null,
"dfs_odds_type": null,
"last_change_at": "2026-08-16T14:07:53.227351Z",
"line_gap": null,
"book_outcome_id": null
},
{
"name": "Under",
"description": "Adley Rutschman",
"price": -140,
"point": 0.5,
"book_updated_at": null,
"book_version": null,
"payout_multiplier": null,
"dfs_odds_type": null,
"last_change_at": "2026-08-16T14:07:53.227351Z",
"line_gap": null,
"book_outcome_id": null
}
]
}
]
}
]
}The response shape is the-odds-api compatible — events, bookmakers, markets, outcomes — so migrating is usually a base URL change.
Try it
1. List MLB events to get an event id:
curl "https://api.prop-line.com/v1/sports/baseball_mlb/events?apiKey=YOUR_API_KEY"2. Pull singles for one game across every book — this exact URL works right now:
curl "https://api.prop-line.com/v1/sports/baseball_mlb/events/138811/odds?apiKey=YOUR_API_KEY&markets=batter_singles"3. After the game, get the graded outcomes with the actual stat:
curl "https://api.prop-line.com/v1/sports/baseball_mlb/events/138811/results?apiKey=YOUR_API_KEY"Steps 1 and 2 run on the free tier. Step 3 — prop resolution — starts on Hobby at $9/mo. See pricing.
Get your free MLB odds API key
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