IN Fridays 8th race NP, using TM values looked like this:
WE only have TM info for the Euros. See how they are much larger than the US contingent.
The 10 won and the 12 showed.
This is the NP screen using adjusted speed ratings. There are no ASRs for Euros so this is how I recommend looking at the US horses. See how close the top 4 or 5 are in this view, 4 horses w/i 3 pts - so very close. In this sort, the horses that only have Euro/foreign races have "0" values.
Some times predominantly Euro horses will foray stateside or WO side for prep races and when that happens you will be able to see both the TM values for such horses and when you choose adjusted speed ratings you can see how the Euros stack up against the locals.