1st Half Winner is a sports series on Kalshi, with markets like “Club Atletico La Paz wins 1st Half”. The Kalshi Eye archive lists 131 of its markets and has 9 days of daily Parquet files from October 13, 2026 to October 24, 2026 (6 MB), with every order book change and trade.

Venue: Kalshi, series KXLIGAEXP1H
Category: Sports
Markets: 131 (128 settled, 3 open)
Files: 9 days, October 13, 2026 to October 24, 2026, 6 MB, 533,032 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 1st Half Winner 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 KXLIGAEXP1H 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=KXLIGAEXP1H/trades-KXLIGAEXP1H-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

College Football 1st Half Winner (KXNCAAF1H): 1,451 markets, 13 days of files
NBA 1st Half Winner (KXNBA1H): 335 markets, 13 days of files
1st Half Winner (KXMLS1H): 218 markets, 11 days of files
Women's Pro Basketball 1st Half Winner (KXWNBA1HWINNER): 101 markets, 13 days of files
College Football 1st Half Spread (KXNCAAF1HSPREAD): 2,620 markets, 13 days of files
College Football 1st Half Total (KXNCAAF1HTOTAL): 1,746 markets, 13 days of files

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