MLB Player Next Team is a sports series on Kalshi, with markets like “What will be Fernando Tatis Jr.'s next team?”. The Kalshi Eye archive lists 310 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (30 MB), with every order book change and trade.

Venue: Kalshi, series KXNEXTTEAMMLB
Category: Sports
Markets: 310 (0 settled, 310 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 30 MB, 3,047,085 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 Player Next Team 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 KXNEXTTEAMMLB 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=KXNEXTTEAMMLB/trades-KXNEXTTEAMMLB-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Player Next Team (KXNFLNEXTTEAM): 476 markets, 13 days of files
Next NBA Team (KXNEXTTEAMNBA): 811 markets, 12 days of files
Pro Basketball Next Team (KXNBANEXTTEAM): 669 markets, 13 days of files
Next Team NHL (KXNEXTTEAMNHL): 263 markets, 13 days of files
Pro Baseball Next Team (KXMLBNEXTTEAM): 173 markets, 13 days of files
Women's Pro Basketball Next Team (KXWNBANEXTTEAM): 16 markets, 13 days of files

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