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[horse racing] What do the directory names made of digits mean?

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  • [horse racing] What do the directory names made of digits mean?

    I have historical data for horse racing. Help me understand what the digits in the directory names mean.

    For example:


    1) BASIC/2015/Nov/6/27593233/

    2) BASIC/2015/Nov/6/27593233/1.121701508.bz2

    3) BASIC/2015/Nov/6/27593233/




    Q:

    1) What are these digits in the a) directoriy names b) file names? What do they refer to?

    2) What's the prefix "1." for in the names of some *.brz2 files?

    Last edited by fdsafds; 28-07-2022, 03:47 AM.

  • #2
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    • #3
      Hi fdsafds,


      BASIC/2015/Nov/6/27593233/1.121701508.bz2

      Package (BASIC/ADVANCED/PRO) / Year / Month / EventId / MarketId

      "1." is a prefix used for all markets to represent the id of the Exchange. This is a legacy from when we operated a separate Australian Exchange. At the time, "1." represented all markets on the .com (international Exchange), and "2." represented Australian Exchange markets. Only "1." is used in the historical data files.

      Kind Regards

      Neil



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      • #4
        Between a Month and EventId there's also a Day, isn't there?




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        • #5
          Hi fdsafds,

          Yes, apologies, see full details below:

          Package (BASIC/ADVANCED/PRO) / Year / Month / Day / EventId / MarketId

          Thanks

          Neil

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          • #6
            >>"1." is a prefix used for all markets to represent the id of the Exchange. This is a legacy from when we operated a separate Australian Exchange. At the time, "1." represented all markets on the .com (international Exchange), and "2." represented Australian Exchange markets. Only "1." is used in the historical data files.<<


            In a single directory there're usually multiple types of files:

            (1) one file named = EventId
            (2) one or multipe files named (".1" + some kind of ID)


            Do those ID-s in (2) represent MarketID-s? If so, what's the market ID of the (1) file then?

            What's EventID? In case of Horse Racing, does it represent one horse race?
            Last edited by fdsafds; 28-07-2022, 02:24 PM.

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            • #7
              Why multiple ones of the (2)?
              These are markets i.e. marketId's that belong to a single event. An event can contain one or more marketId's.

              What do those ID-s in (2) represent? Are they ID-s of some markets? If so, what's the market ID of the (1) then?
              The ids represent Betfair Exchange markets. The eventId is a separate id representing the unique identifier for an event.

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              • #8
                Alright.

                What is then the MarketId of that single file named identically to EventId? Meaning, the one which is without ".1"
                On my screenshot is 27590491.bz2

                Is it some sort of the default market?

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                • #9
                  What is then the MarketId of that single file named identically to EventId? Meaning, the one which is without ".1"
                  On my screenshot is 27590491.bz2

                  Is it some sort of the default market?
                  This is the specific Event file. Event files contain all marketId’s (market files) within an event interleaved with each other based on ascending published time order.

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                  • #10
                    Ok, thanks

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