ATP Tennis: Basel, Switzerland Winner is a sports series on Polymarket, with markets like “Will Casper Ruud win the 2026 Basel, Switzerland?”. The Kalshi Eye archive lists 32 of its markets and has 3 days of daily Parquet files from October 25, 2026 to October 27, 2026 (2 MB), with order books, trades and on-chain fills.
- Venue: Polymarket
- Category: Sports
- Markets: 32 (12 settled, 20 open)
- Files: 3 days, October 25, 2026 to October 27, 2026, 2 MB, 45,753 rows
- Datasets: Polymarket order book, Polymarket trades, Polymarket on-chain fills, Polymarket markets
Open ATP Tennis: Basel, Switzerland Winner in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Polymarket data page.
Reading the files
Polymarket files are split by market, so a series spans several files a day. Pick the days in Markets or Downloads, or list them with the files API. How each file reads is on the Polymarket page.
Related Polymarket series
- ATP Tennis: Vienna, Austria Winner: 32 markets, 3 days of files
- ATP Tennis: Almaty, Kazakhstan Winner: 28 markets, 8 days of files
- ATP Tennis: Brussels, Belgium Singles Winner: 28 markets, 10 days of files
- WTA Tennis: Guangzhou, China Winner: 32 markets, 3 days of files
- WTA Tennis: Osaka, Japan Winner: 32 markets, 8 days of files
- WTA Tennis: Tokyo, Japan Winner: 28 markets, 3 days of files
Figures through October 27, 2026. All Polymarket series with pages are listed on Polymarket series.