I have been using sectional data in the UK for a while now and most of it is done directly from video replays - particularly the last 3f or 2f depending on distance and markers etc - officially there are two outlets who provide data - Timeform who use the video method and TPD who cover 4 AW tracks and 2 turf tracks. There are plans in place hopefully for Ascot and York next turf season. At the forefront of the sectional scene here has been Simon Rowlands , an ex Timeform employee who has developed his own metric - Finishing Speed % and also a method to upgrade a performance rating based on the efficiency of the race time / sectionals. He has also written a free to download book which can be downloaded here
https://en.calameo.com/read/00036246...d=mSo7SacuVBgK
He writes a weekly blog on ATR , as he was involved in the input of the TPD data that is used to create the metrics on that site and can be found here
http://www.attheraces.com/blogs/sect...tlight/archive
