Min & max prices

[burntheory]

I've recently started recording the prevailing min and max prices when I set up my lay markets early in the morning. What I can't figure out is how much needs to be matched at a particular price to get picked up by the spreadsheet.

I understand with BF historical data, the min and max figures are based on at least £100 being matched but that doesn't appear to be the case with the figures I'm collecting around 7am in the morning.

This morning, the figures gathered for the 15:40 at Sandown had around £4.44 matched on Sentimentaljourney at a WAP of 973.33 and min and max both being 1000. At the same time, in the same race, Vieux Ville recorded £13.72 matched at a WAP 31.17 but nothing was recorded for either the min or max figures. Presumably it had matches at more prices, bringing the biggest amount matched to something less than Sentimentaljourney - less than £2 maybe?

To be honest, I haven't been gathering this data long enough to see if it offers up anything worthwhile so I'm just curious at this point. Any thoughts?

[burntheory]

It's okay, I've figured this out.

I'm guessing there were two bets on Sentimentaljourney in the market at 7am, one for £2 at 1000, the other for £0.22 at 730, which gets doubled up to £4.44 in Betfair speak. This suggests the early figures being reported are based on the minmum stake of £2.