1st Half Spread is a sports series on Kalshi, with markets like “Independ. Santa Fe wins by more than 1.5 goals in the 1st Half?”. The Kalshi Eye archive lists 56 of its markets and has 3 days of daily Parquet files from October 13, 2026 to October 15, 2026 (2 MB), with every order book change and trade.

Venue: Kalshi, series KXCONMEBOLSUD1HSPREAD
Category: Sports
Markets: 56 (56 settled, 0 open)
Files: 3 days, October 13, 2026 to October 15, 2026, 2 MB, 195,259 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 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

Every KXCONMEBOLSUD1HSPREAD trade on October 15, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-15/series=KXCONMEBOLSUD1HSPREAD/trades-KXCONMEBOLSUD1HSPREAD-2026-10-15.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

ESoccer Game (KXESOCCERGAME): 18,378 markets, 12 days of files
Men's College Basketball AP Poll Top Rank (KXNCAAMBTOPAPRANK): 6,718 markets, 12 days of files
NHL Goalscorer (KXNHLGOAL): 6,078 markets, 12 days of files
College Football Spread (KXNCAAFSPREAD): 5,307 markets, 12 days of files
Pro Hockey Points (KXNHLPTS): 4,823 markets, 12 days of files
Pro Football Receiving Yards (KXNFLRECYDS): 4,479 markets, 12 days of files

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