KBO First Inning Run is a sports series on Kalshi, with markets like “Hanwha Eagles vs Kiwoom Heroes: First Inning Run?”. The Kalshi Eye archive lists 89 of its markets and has 12 days of daily Parquet files from October 12, 2026 to October 23, 2026 (3 MB), with every order book change and trade.

Venue: Kalshi, series KXKBORFI
Category: Sports
Markets: 89 (87 settled, 2 open)
Files: 12 days, October 12, 2026 to October 23, 2026, 3 MB, 269,014 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 KBO First Inning Run 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 KXKBORFI trade on October 23, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-23/series=KXKBORFI/trades-KXKBORFI-2026-10-23.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

ESoccer Game (KXESOCCERGAME): 18,315 markets, 12 days of files
Men's College Basketball AP Poll Top Rank (KXNCAAMBTOPAPRANK): 6,718 markets, 12 days of files
NHL Goalscorer (KXNHLGOAL): 6,077 markets, 12 days of files
College Football Spread (KXNCAAFSPREAD): 5,304 markets, 12 days of files
Pro Hockey Points (KXNHLPTS): 4,822 markets, 12 days of files
Pro Football Receiving Yards (KXNFLRECYDS): 4,473 markets, 12 days of files

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