Pro Baseball Total Bases is a sports series on Kalshi, with markets like “William Contreras: 5+ total bases?”. The Kalshi Eye archive lists 853 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (185 MB), with every order book change and trade.

Venue: Kalshi, series KXMLBTB
Category: Sports
Markets: 853 (812 settled, 41 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 185 MB, 18,440,607 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars), Trades

Open Pro Baseball Total Bases in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Kalshi data page.

Reading the files

Every KXMLBTB trade on October 24, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-24/series=KXMLBTB/trades-KXMLBTB-2026-10-24.parquet'
ORDER BY ts_recv;

To test a strategy on this series, see How to backtest Kalshi markets.

Related Kalshi series

Pro Baseball Stolen Bases (KXMLBSB): 296 markets, 13 days of files
Pro Baseball Inning Total (KXMLBINNINGTOTAL): 284 markets, 12 days of files
Pro Baseball Team Total (KXMLBTEAMTOTAL): 262 markets, 13 days of files
Pro Baseball Total Points (KXMLBTOTAL): 228 markets, 13 days of files
Pro Baseball Series Total Games (KXMLBSERIESGAMES): 21 markets, 13 days of files
Pro Football 1st Half Team Total (KXNFL1HTEAMTOTAL): 1,153 markets, 13 days of files

Figures through October 24, 2026. All Kalshi series with pages are listed on Kalshi series.