data dot betfair dot com

There you can download spreadsheets with EVERY single betfair market. For each market they have each runner listed and for each runner they have every price they got matched at and the 1st and last time they were matched at this price.

I use these but I am a programmer so I write little extraction tools that pull out the relevant data. If you were doing it manually it oculd be a bit tedious as you would need to filter a few columns (eg In-running) and then for each runner you'd need to sort on last matched time. Doable but just much easier with code.