I'm happy to be corrected on this one as I've not used the historical data, only the api, but from what I can gather then data arrives in 3 levelsneilovan wrote: ↑Wed Jan 23, 2019 1:40 pmI think I did, maybe I read wrong document.
it says 'id marketId Unique identifier for the market'
on https://historicdata.betfair.com/Betfai ... cation.pdf
It seems like this file does not tell you the competition.
marketDefinition
runnderDefinition
and then marketChanges (which are of various types, changes to the Market, Runners, or prices & volumes etc.
It's the key feature with json vs a straight csv. With a csv the market & runner info would normally to be supplied on each line. But json is more like a relational Db where each data item only exists once (ie Venue) and the individual levels eg market, runner, runner info are tied together using market and runner ids.
I hope that's not a red herring.