MLB Historical Odds Data and Closing Lines

What's in It

Moneyline, spread and total for every MLB game we scanned.
Each book's earliest price and closing price at every line.
The line movement between them, in probability points.
Pinnacle as the sharp reference, never counted as the best price.
Player props at four checkpoints, where books post them.
The last 7 days free, full history by subscription.

Sample

New York Yankees at Tampa Bay Rays, October 5, 2026: Tampa Bay Rays moneyline at each book, earliest captured and closing price.

Book	Market	Earliest	Close	Movement
Pinnacle (reference)	Moneyline	+110	+109	+0.23 pts
Bally Bet	Moneyline	+107	+102	+1.20 pts
BetMGM	Moneyline	+110	+105	+1.16 pts
BetOnline	Moneyline	+109	+108	+0.23 pts
BetParx	Moneyline	+107	+102	+1.20 pts
BetRivers	Moneyline	+107	+102	+1.20 pts
Bovada	Moneyline	+107	+106	+0.23 pts
Caesars	Moneyline	+111	+111	0.00 pts

Download

The last 7 days, free. No signup, no key.

curl -o mlb.csv "https://theoddsgap.com/api/odds-history.csv?sport=baseball_mlb"

Try it: /data/sample.csv holds every book's prices on one finished NFL game, New York Jets at Chicago Bears. Free, no signup, no key.

Questions

Where can I download MLB historical odds as a CSV?

Right here. The last 7 days download free with no key. Full MLB history back to June 3, 2026 is a subscription. Every file also comes as JSON or Parquet with the same rows and columns.

Does this include MLB opening and closing lines?

Closing lines, yes: each book's last price before the game started. For the open, you get the earliest price we captured at that line, which is not always the market's first posted line, and the file labels it that way.

How far back does the MLB data go?

To June 3, 2026. Our coverage starts on June 4, 2026 across every sport, so this is not a multi-season archive. It grows with every MLB game we scan.