1st Half Spread is a sports series on Kalshi, with markets like “Santa Cruz FC PE wins by more than 1.5 goals in the 1st Half”. The Kalshi Eye archive lists 84 of its markets and has 3 days of daily Parquet files from October 16, 2026 to October 19, 2026 (111 KB), with every order book change and trade.

Venue: Kalshi, series KXBRASILEIROC1HSPREAD
Category: Sports
Markets: 84 (84 settled, 0 open)
Files: 3 days, October 16, 2026 to October 19, 2026, 111 KB, 6,875 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars)

Open 1st Half Spread 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

KXBRASILEIROC1HSPREAD minute bars on October 19, 2026, in DuckDB:

SELECT minute, ticker, mid_close, yes_bid_close, yes_ask_close, trade_count
FROM 'kalshieye-data/bbo_1m/date=2026-10-19/series=KXBRASILEIROC1HSPREAD/bbo_1m-KXBRASILEIROC1HSPREAD-2026-10-19.parquet'
ORDER BY minute;

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

Related Kalshi series

College Football 1st Half Spread (KXNCAAF1HSPREAD): 2,620 markets, 13 days of files
NBA 1st Half Spread (KXNBA1HSPREAD): 1,080 markets, 11 days of files
1st Half Spread (KXMLS1HSPREAD): 172 markets, 11 days of files
Women's Pro Basketball 1st Half Spread (KXWNBA1HSPREAD): 108 markets, 13 days of files
College Football 1st Half Total (KXNCAAF1HTOTAL): 1,746 markets, 13 days of files
College Football 1st Half Winner (KXNCAAF1H): 1,451 markets, 13 days of files

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