MLS Leader is a sports series on Kalshi, with markets like “Will Robert Lewandowski lead MLS in goals for the 2026 season?”. The Kalshi Eye archive lists 17 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (6 MB), with every order book change and trade.

Venue: Kalshi, series KXMLSLEADER
Category: Sports
Markets: 17 (0 settled, 17 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 6 MB, 637,012 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 MLS Leader 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 KXMLSLEADER 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=KXMLSLEADER/trades-KXMLSLEADER-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

NBA Regular Season League Leader (KXNBASTATLEADER): 692 markets, 13 days of files
MLS Total (KXMLSTOTAL): 588 markets, 13 days of files
NBA Game Points Leader (KXNBAPTSLEADER): 466 markets, 3 days of files
MLS Spread (KXMLSSPREAD): 406 markets, 13 days of files
DP World Tour R1 Leader (KXDPWORLDTOURR1LEAD): 349 markets, 5 days of files
DP World Tour R2 Leader (KXDPWORLDTOURR2LEAD): 349 markets, 7 days of files

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