MLB National League Championship is an annual sports series on Kalshi, with markets like “Will Los Angeles D win the 2026 Pro Baseball National League Championship?”. The Kalshi Eye archive lists 15 of its markets and has 5 days of daily Parquet files from October 12, 2026 to October 16, 2026 (9 MB), with every order book change and trade.

Venue: Kalshi, series KXMLBNL
Category: Sports, annual
Markets: 15 (15 settled, 0 open)
Files: 5 days, October 12, 2026 to October 16, 2026, 9 MB, 604,252 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 National 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 KXMLBNL trade on October 16, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-16/series=KXMLBNL/trades-KXMLBNL-2026-10-16.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

ESoccer Game (KXESOCCERGAME): 18,315 markets, 12 days of files
Men's College Basketball AP Poll Top Rank (KXNCAAMBTOPAPRANK): 6,718 markets, 12 days of files
NHL Goalscorer (KXNHLGOAL): 6,077 markets, 12 days of files
College Football Spread (KXNCAAFSPREAD): 5,304 markets, 12 days of files
Pro Hockey Points (KXNHLPTS): 4,822 markets, 12 days of files
Pro Football Receiving Yards (KXNFLRECYDS): 4,473 markets, 12 days of files

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