kiwi, I can confirm as UB has said that the NR change post-race. Sometimes they do it the following day, sometimes they do it that night. I've found this out recently with some of my recording, thought it was all good because I was doing it same-night and they appeared to only change the following day but then found some more anomalies.

Would need to record pre-race and then take out scratchings afterwards if you want to record neurals.