League OnePolymarket historical data and price history

League One: a Polymarket sports series with markets recurring daily. Marketlens has captured 50 markets since September 18, 2026, of which 50 resolved, with $802 in traded volume. Every market's order book is stored in full: periodic L2 snapshots plus every individual price change with a millisecond timestamp, alongside trades, candles, and the final resolution outcome.

For the sports archive as a whole, see Polymarket sports odds history.

Data as of 2026-09-21 · Polymarket series League One · slug soccer-el1

Markets
50
Resolved
50
Traded volume
$802
Avg volume / market
$62
Cadence
daily
Coverage from
2026-09-18
Data through
2026-09-18
Category
Sports

Markets by bet type

total27
spread23

Market counts by bet type across the series. Pass any of these as subtype= to backtest that type on its own.

Markets in this series

The most recently resolved of 50 markets.

Spread: Mansfield Town FC (-4.5)

closed 2026-09-18 · volume $302

Spread: Burton Albion FC (-3.5)

closed 2026-09-18

Burton Albion FC vs. Mansfield Town FC: O/U 8.5

closed 2026-09-18 · volume $25

Backtest this series

python
from marketlens import MarketLens client = MarketLens() result = client.backtest( MyStrategy(), "soccer-el1", subtype="total", after="2026-09-18", before="2026-09-19", initial_cash=1_000, ) result.show() # inspect the run in the dashboard

Available datasets

Order book snapshots and deltasfull L2 depth, millisecond price changes
Tradesindividual fills with side and size
CandlesOHLC at multiple resolutions
Bulk Parquet exportsfull markets for offline research
Backtestingtick level replay with realistic fills

Common questions

How many League One markets are in the archive?

50 markets from September 18, 2026 through September 18, 2026, of which 50 have resolved.

What data exists for each League One market?

Full L2 order book history (snapshots plus every price change at millisecond resolution), individual trades, OHLC candles, and the resolution outcome. All of it is queryable by the series slug "soccer-el1" through the API and Python SDK, or downloadable as Parquet.

How much does a typical League One market trade?

Average traded volume is $62 per market, $802 across the series.

Can I backtest strategies on League One?

Yes. Pass the slug "soccer-el1" to client.backtest() in the Python SDK. Execution mode replays every market's order book tick by tick and fills simulated orders against real historical depth with queue priority, latency, and fee modelling; Alpha mode replays one bar per market for slower signals over long windows. This series mixes several bet types, so pass subtype= (e.g. "total") to backtest one type at a time.

Related series: FIFA World Cup, MLB, ATP, NFL 2026, UEFA Champions League 2025, WTA, or all sports series.

Try it

Replay League One tick by tick

The free tier includes 1M rows per day with full API and full archive access, no card required.

bash
$ pip install marketlens
Get a free API keyRead the docs