---
title: "List fight cards (MMA / boxing)"
method: GET
path: "/v1/fight-cards"
tags: ["combat"]
---

# List fight cards (MMA / boxing)

`GET /v1/fight-cards`

## Request

- Base URL: `https://api.bigballsdata.com`
- URL: `https://api.bigballsdata.com/v1/fight-cards`
- Auth: one of:
  - API key in header `x-api-key`
  - HTTP bearer

Fight-card list, served from stored data. `data` is an ARRAY of cards, most recent first, each carrying its bouts.

**MMA** cards are grouped by stored event identity, never by calendar date. Use `promotion=ufc` or `promotion=pfl` to select one promotion. Stored cards carry their own `id`; legacy UFC cards continue to accept a bout id for backward compatibility. Completed bouts may carry `winner`, `winner_name`, `method`, `round`, and `time`. A null result means those facts have not been loaded and is never interpreted as a draw.

**Boxing** cards are real `fight_card` rows (Nevada commission results) and DO carry results: `winner` as a corner (`a`/`b`/`draw`/`nc`) mapped to the fighter names, `method`, `round`, `time` and the judges' scorecards. A `winner` of `null` means undetermined; it is accompanied by `winner_status: "undetermined"` and is NOT a draw. Scorecards are served per judge and are never summed into a score. A null `weight_class`, `event_name`, `promoter`, `scheduled_rounds` or `knockdowns` means the source did not report it, never zero.

## Query parameters

- `sport` 'mma' | 'boxing', required
- `promotion` 'ufc' | 'pfl'
- `date` string
- `tz` string

## Response `200`

ok. An array of cards; empty when none match the filter (still 200).

- object: The standard response wrapper. Only `data` is guaranteed. `error` is absent (not null) on 16 of 40 live 200 responses measured 2026-09-18, so test for the KEY before reading it; this block declared it required until then. On a non-2xx, `error` is present and `data` is absent.
  - `data` object[], required
  - `meta` ResponseMeta: Response metadata. NOTHING here is guaranteed: measured over 38 live envelopes on 2026-09-18, `cached` and `request_id` appeared in 29, `source` in 28, `cache_age_ms` in 9 and `confidence` in 6. This block previously declared all five REQUIRED, which no response has ever satisfied. Treat every field as optional and branch on its absence. Routes add their own keys here (`count`, `limit`, `offset`, `note`, `total`, and per-endpoint ones), so do not assume a closed set.
    - `date_window` object: Present when ?date= was applied. The exact window the filter used, so an omission at a day boundary is visible. start_utc is inclusive, end_utc exclusive. timezone is UTC, or the zone named by ?tz=, in which case the window is that local day. Boxing card dates are published event dates, so timezone and bounds are null there.
      - `date` string
      - `timezone` string, nullable
      - `start_utc` string, date-time, nullable
      - `end_utc` string, date-time, nullable
      - `note` string
    - `source` 'official-league' | 'aggregator-paid' | 'aggregator-free' | 'community-scraper' | 'forecast' | 'mixed' | 'cache' | 'none' | 'unknown-source' | 'stored' | 'catalogue' | 'gateway' | 'coverage-snapshot': Opaque source-tier label. Customers never see the vendor identity. `forecast` marks a weather forecast (GET /v1/matches/{id}/weather).
    - `confidence` number, float
    - `cached` boolean
    - `cache_age_ms` integer
    - `request_id` string
    - `fields_missing` string[]
    - `note` string: Short factual disclosure about something this response deliberately withheld, present only when there is something to disclose. On live scores it appears when `match_id` could not be resolved to a stored match and was therefore omitted: it gives the counts and points at `/v1/stored/matches`, whose ids you can call back into. Absent when every served id resolves. Distinct from `message`, which explains `coverage: false` or a stale response. This one is attached to a response that DID serve data and names the part of it that is deliberately missing.
  - `error` ApiError
    - `code` string, required
    - `message` string, required
    - `details` unknown

## Other responses

- `400`: Missing or invalid ?sport= (must be mma or boxing), or a bad ?date format.

---

[API](https://skmtc.dev/bigballsdata/apis/big-ball-sports-api.md) · [All operations](https://skmtc.dev/bigballsdata/apis/big-ball-sports-api/llms.txt) · [OpenAPI document](https://skmtc.dev/bigballsdata/apis/big-ball-sports-api/revisions/31fb54ac414e?raw)