What is the closing line in MMA odds?
The closing line is the last price on a fight before it starts; UFCalendar's consensus line is the average of the prices across many sportsbooks rather than any single book's.
How it works
Sportsbooks open a price when a fight is booked and move it as money and news come in. The opening line is the first price recorded; the closing line is the last one at or before the event start. Because it has taken in the most information, the closing line is the market's final estimate of each fighter's chances.
UFCalendar's consensus is the mean of the sportsbooks we track, worked out in decimal odds. Prediction markets and exchanges are left out, and a book far away from the rest is dropped. A new point is recorded each time the consensus moves, which gives the line movement from open to close.
Worked example
A fight opens with fighter A at 2.10 (+110) and closes at 1.67 (−150). The market moved toward A: the implied chance went from about 48% at the open to 60% at the close.
Odds on UFCalendar are information only, not betting advice.
Where to see it on UFCalendar
Get it from the API
The same data is served as JSON by the MMA Fight Data API. The endpoints that carry it:
GET /v1/fights/{id}/oddsOne bout's consensus moneyline: American and decimal prices, implied and de-vigged probabilities, the opening and closing line and the movement between them.
GET /v1/events/{idOrSlug}/oddsThe consensus line for every bout on a card in one call, in card order, unpriced bouts included.
GET /v1/fights/{id}/odds/historyEvery movement point of a bout's consensus line, oldest first, with the number of sportsbooks behind each point.