WTA Set Winner is a sports series on Kalshi, with markets like “Will Maiar Sherif Ahmed Abdelaziz win set 2 in the Maiar Sherif Ahmed Abdelaziz vs Tatiana Prozorova match”. The Kalshi Eye archive lists 968 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (544 MB), with every order book change and trade.

Venue: Kalshi, series KXWTASETWINNER
Category: Sports
Markets: 968 (876 settled, 92 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 544 MB, 57,182,050 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 WTA Set 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 KXWTASETWINNER 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=KXWTASETWINNER/trades-KXWTASETWINNER-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

ATP Set Winner (KXATPSETWINNER): 868 markets, 13 days of files
College Football 1st Half Winner (KXNCAAF1H): 1,451 markets, 13 days of files
College Football Award Winner (KXNCAAFAWARD): 1,049 markets, 13 days of files
Dota 2 Map Winner (KXDOTA2MAP): 834 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

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