Odds API by market / MLB

MLB RBIs API

Live batter_rbis 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 rbis is

Runs batted in, as a true Over/Under. The "to record an RBI" YES market and the N+ rungs sit on separate keys.

How we settle it. Graded against the batting stat group's RBI column.

17
books quoting it on the next event
4/10
of the next MLB events carry it right now
7,019
outcomes settled in the last 4 days

Every number on this page is measured against the live API, never copied from a spec sheet. Last measured 6 October 2026.

Books posting MLB rbis

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.

BetMGMCourtsideDabbleDraftKingsFanaticsFliffHard Rock BetKalshiNovigParlayPlayPolymarket USPrizePicksProphetXSleeperSmarketsSportzinoUnderdog Fantasy

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 rbis 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.

7,019 rbis outcomes settled in the last 4 days across 17 books. The 12 most recent:

PlayerBetActualResult
Chandler SimpsonOver 0.51.0won
Chandler SimpsonUnder 0.51.0lost
Jonathan ArandaOver 0.50.0lost
Jonathan ArandaOver 0.50.0lost
Jonny DelucaOver 0.50.0lost
Jonny DelucaUnder 0.50.0won
Junior CamineroOver 0.50.0lost
Liam HicksOver 0.51.0won
Richard PalaciosOver 0.5—void
Jonny DeLucaOver 0.50.0lost
Junior CamineroOver 0.50.0lost
Liam HicksOver 0.51.0won

Over/Under split, last 4 days

The Over won 13.4% of 3528 decided rbis lines (472 over, 3056 under). Computed from the settled rows themselves, scoped to MLB only.

Read off 3,671 Over legs out of 7,019 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 Los Angeles Dodgers @ Atlanta Braves, 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.

{
  "home_team_key": "braves",
  "away_team_key": "dodgers",
  "home_team_id": "mlb:144",
  "away_team_id": "mlb:119",
  "home_team_logo_url": "https://www.mlbstatic.com/team-logos/144.svg",
  "away_team_logo_url": "https://www.mlbstatic.com/team-logos/119.svg",
  "id": "322322",
  "sport_key": "baseball_mlb",
  "home_team": "Atlanta Braves",
  "away_team": "Los Angeles Dodgers",
  "commence_time": "2026-10-06T22:00:00Z",
  "live": false,
  "is_outright": false,
  "tournament": null,
  "tour": null,
  "last_update": "2026-10-06T16:09:21.362075Z",
  "merged_from_event_ids": null,
  "bookmakers": [
    {
      "key": "betmgm",
      "title": "BetMGM",
      "last_update": "2026-10-06T16:08:43.348327Z",
      "link": null,
      "app_link": null,
      "pregame_only": false,
      "book_event_id": null,
      "markets": [
        {
          "key": "batter_rbis",
          "description": "Andy Pages: RBI's",
          "last_update": "2026-10-06T16:08:43.348327Z",
          "period": null,
          "suspended_at": null,
          "team": null,
          "line_type": "main",
          "outcomes": [
            {
              "name": "Over",
              "description": "Andy Pages",
              "price": 250,
              "point": 0.5,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-10-05T21:18:30.922499Z",
              "last_seen_at": "2026-10-06T16:08:43.348327Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": "mlb:681624",
              "side": null
            },
            {
              "name": "Under",
              "description": "Andy Pages",
              "price": -350,
              "point": 0.5,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-10-05T21:18:30.922499Z",
              "last_seen_at": "2026-10-06T16:08:43.348327Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": "mlb:681624",
              "side": 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 rbis for one game across every book — this exact URL works right now:

curl "https://api.prop-line.com/v1/sports/baseball_mlb/events/322322/odds?apiKey=YOUR_API_KEY&markets=batter_rbis"

3. After the game, get the graded outcomes with the actual stat:

curl "https://api.prop-line.com/v1/sports/baseball_mlb/events/322322/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

1,000 requests / day. No credit card. The same key covers every sport and every market — not just this one.

Free tier includes 1,000 requests/day. Upgrade anytime.