MLS Cup champion is a sports series on Kalshi, with markets like “Will New York City win the MLS Cup?”. The Kalshi Eye archive lists 30 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (19 MB), with every order book change and trade.

Venue: Kalshi, series KXMLSCUP
Category: Sports
Markets: 30 (0 settled, 30 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 19 MB, 1,859,302 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 Cup champion 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 KXMLSCUP 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=KXMLSCUP/trades-KXMLSCUP-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

NASCAR Cup Series Champion (KXNASCARCUPSERIES): 35 markets, 13 days of files
Pro Basketball Cup Champion (KXNBACUP): 30 markets, 13 days of files
MLS Total (KXMLSTOTAL): 588 markets, 13 days of files
MLS Spread (KXMLSSPREAD): 406 markets, 13 days of files
FIBA Europe Cup Spread (KXFIBAECUPSPREAD): 264 markets, 3 days of files
FIBA Europe Cup Total (KXFIBAECUPTOTAL): 242 markets, 3 days of files

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