WTA Grand Slam is a sports series on Kalshi, with markets like “Will Ekaterina Alexandrova win a Tennis Grand Slam in 2026?”. The Kalshi Eye archive lists 39 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (501 KB), with every order book change and trade.

Venue: Kalshi, series KXWTAGRANDSLAM
Category: Sports
Markets: 39 (15 settled, 24 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 501 KB, 52,093 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 WTA Grand Slam 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

KXWTAGRANDSLAM minute bars on October 24, 2026, in DuckDB:

SELECT minute, ticker, mid_close, yes_bid_close, yes_ask_close, trade_count
FROM 'kalshieye-data/bbo_1m/date=2026-10-24/series=KXWTAGRANDSLAM/bbo_1m-KXWTAGRANDSLAM-2026-10-24.parquet'
ORDER BY minute;

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

Related Kalshi series

ATP Grand Slam (KXATPGRANDSLAM): 34 markets, 13 days of files
WTA Set Winner (KXWTASETWINNER): 968 markets, 13 days of files
WTA Tennis Match (KXWTAMATCH): 640 markets, 13 days of files
WTA Total Games (KXWTAGTOTAL): 588 markets, 13 days of files
Challenger WTA (KXWTACHALLENGERMATCH): 324 markets, 7 days of files
Will Player Qualify for WTA Finals (KXWTAFINALSQUAL): 20 markets, 13 days of files

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