USL League One is a daily sports series on Polymarket, with markets like “Av Alta FC vs. Corpus Christi FC: Corpus Christi FC O/U 3.5”. The Kalshi Eye archive lists 1,288 of its markets and has 9 days of daily Parquet files from October 16, 2026 to October 24, 2026, with order books, trades and on-chain fills.
- Venue: Polymarket
- Category: Sports, daily
- Markets: 1,288 (1,288 settled, 0 open)
- Files: 9 days, October 16, 2026 to October 24, 2026
- Datasets: Polymarket order book, Polymarket trades, Polymarket on-chain fills, Polymarket markets
Open USL League One 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
- League One: 5,258 markets, 9 days of files
- UEFA Europa League 2025: 15,280 markets, 4 days of files
- Europa Conference League: 14,974 markets, 4 days of files
- UEFA Champions League 2025: 8,954 markets, 5 days of files
- Saudi Professional League: 8,566 markets, 10 days of files
- Premier League 2025: 7,663 markets, 10 days of files
Figures through October 24, 2026. All Polymarket series with pages are listed on Polymarket series.