Teams in MLB Finals is a sports series on Kalshi, with markets like “Will New York Y vs Los Angeles D be the matchup in the Pro Baseball Championship Series?”. The Kalshi Eye archive lists 84 of its markets and has 10 days of daily Parquet files from October 12, 2026 to October 21, 2026 (63 MB), with every order book change and trade.

Venue: Kalshi, series KXTEAMSINWS
Category: Sports
Markets: 84 (84 settled, 0 open)
Files: 10 days, October 12, 2026 to October 21, 2026, 63 MB, 5,723,605 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 Teams in MLB Finals 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 KXTEAMSINWS trade on October 21, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-21/series=KXTEAMSINWS/trades-KXTEAMSINWS-2026-10-21.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

MLB Player Next Team (KXNEXTTEAMMLB): 310 markets, 13 days of files
NBA Finals Outcome (KXNBAFINALSOUTCOME): 250 markets, 3 days of files
Pro Football All-Pro Teams (KXNFLALLPRO): 239 markets, 13 days of files
Pro Football Both Teams to Score Points (KXNFLBOTH): 210 markets, 13 days of files
College Football Teams to Make a Bowl Game (KXNCAAFBOWLGAME): 120 markets, 13 days of files
Pro Football Both Teams to Score in 3rd Quarter (KXNFL3QBTTS): 107 markets, 13 days of files

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