MLB American League Championship is an annual sports series on Kalshi, with markets like “Will Los Angeles A win the 2026 Pro Baseball American League Championship?”. The Kalshi Eye archive lists 15 of its markets and has 10 days of daily Parquet files from October 12, 2026 to October 21, 2026 (15 MB), with every order book change and trade.

Venue: Kalshi, series KXMLBAL
Category: Sports, annual
Markets: 15 (15 settled, 0 open)
Files: 10 days, October 12, 2026 to October 21, 2026, 15 MB, 1,007,108 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 MLB American League Championship 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 KXMLBAL 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=KXMLBAL/trades-KXMLBAL-2026-10-21.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Pro Baseball American League Championship Series MVP (KXMLBALCSMVP): 49 markets, 11 days of files
MLB National League Championship (KXMLBNL): 15 markets, 5 days of files
Pro Baseball American League Hank Aaron (KXMLBNLHAARON): 51 markets, 13 days of files
Pro Baseball American League MVP (KXMLBALMVP): 49 markets, 13 days of files
Pro Baseball National League Championship Series MVP (KXMLBNLCSMVP): 49 markets, 5 days of files
Pro Baseball American League Cy Young (KXMLBALCY): 42 markets, 13 days of files

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