Odds API by market / NCAAB

NCAAB Assists API

Live player_assists 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 NCAAB assists is

Assists recorded by one player. Sensitive to teammate shooting, which is why it disagrees across books more than points does.

How we settle it. Graded against the box score's assists column.

3
books quoting it on the next event
1/12
of the next NCAAB events carry it right now
2,593
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 14 November 2026.

Books posting NCAAB assists

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.

DraftKingsReBetUnderdog 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 NCAAB assists 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.

2,593 assists outcomes settled in the last 4 days across 9 books. The 12 most recent:

PlayerBetActualResult
Derek DixonOver 3.52.0lost
Derek Dixon3+ Assists2.0lost
Ivan Kharchenkov3+ Assists2.0lost
Ivan Kharchenkov4+ Assists2.0lost
Motiejus KrivasOver 1.54.0won
Caleb HoltOver 1.50.0lost
Motiejus KrivasOver 1.54.0won
Caleb HoltOver 2.50.0lost
Tahaad PettifordOver 3.53.0lost
Tahaad PettifordUnder 3.53.0won
Thomas DowdOver 1.52.0won
Kevin Overton2+ Assists0.0lost

Over/Under split, last 4 days

The Over won 37.1% of 688 decided assists lines (255 over, 433 under). Computed from the settled rows themselves, scoped to NCAAB only.

Read off 720 Over legs out of 2,593 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 Bradley @ George Mason, 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": "george_mason",
  "away_team_key": "bradley",
  "home_team_id": null,
  "away_team_id": null,
  "home_team_logo_url": null,
  "away_team_logo_url": null,
  "id": "727956",
  "sport_key": "basketball_ncaab",
  "home_team": "George Mason",
  "away_team": "Bradley",
  "commence_time": "2026-11-14T18:00:00Z",
  "live": false,
  "is_outright": false,
  "tournament": null,
  "tour": null,
  "last_update": "2026-11-14T15:57:32.358096Z",
  "merged_from_event_ids": null,
  "bookmakers": [
    {
      "key": "draftkings",
      "title": "DraftKings",
      "last_update": "2026-11-14T15:56:20.141793Z",
      "link": null,
      "app_link": null,
      "pregame_only": false,
      "book_event_id": null,
      "markets": [
        {
          "key": "player_assists",
          "description": "Brayden O'Connor Assists",
          "last_update": "2026-11-14T15:56:20.141793Z",
          "period": null,
          "suspended_at": null,
          "team": null,
          "line_type": "milestone",
          "outcomes": [
            {
              "name": "3+ Assists",
              "description": "Brayden O'Connor",
              "price": 135,
              "point": null,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-11-14T11:03:40.522807Z",
              "last_seen_at": "2026-11-14T15:56:20.141793Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": null,
              "side": null
            },
            {
              "name": "4+ Assists",
              "description": "Brayden O'Connor",
              "price": 350,
              "point": null,
              "book_updated_at": null,
              "book_version": null,
              "payout_multiplier": null,
              "dfs_odds_type": null,
              "last_change_at": "2026-11-14T11:03:40.522807Z",
              "last_seen_at": "2026-11-14T15:56:20.141793Z",
              "liquidity": null,
              "liquidity_updated_at": null,
              "line_gap": null,
              "book_outcome_id": null,
              "outcome_id": null,
              "player_id": null,
              "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 NCAAB events to get an event id:

curl "https://api.prop-line.com/v1/sports/basketball_ncaab/events?apiKey=YOUR_API_KEY"

2. Pull assists for one game across every book — this exact URL works right now:

curl "https://api.prop-line.com/v1/sports/basketball_ncaab/events/727956/odds?apiKey=YOUR_API_KEY&markets=player_assists"

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

curl "https://api.prop-line.com/v1/sports/basketball_ncaab/events/727956/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 NCAAB 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.