Website showing closing odds from BF

Exchange SPs can be found here:

https://www.timeform.com/horse-racing/

And here if you'd like something you can automate:

https://promo.betfair.com/betfairsp/prices/

There's some very detailed data (even the free stuff) here, but you'll need to have some computer skills to use it:

https://historicdata.betfair.com/#/home

You're right there longbridge--I failed miserably to access the information.

Many years ago it was much easier.