Betfair are giving away historical data at the Advanced level (1sec frequency) for Jan2020 to May2020 and Pro level (50ms frequency) for Apr2020 to May2020. This is for all sports.

This is due to the lack of events, but for testing purposes you may find the data available as useful. You can normally get 1 minute data for free with the basic plan.

Scroll down to the Discount Price Plans to get the free data. Don’t use the Purchase Data selector.

Here’s the link but it’s easily Googled –

http://historicdata.betfair.com/#/home