At The Races by Gary Pizzagati looks at all the pools, graphs money movement over time, gives minimum and maximum place and show payoffs.
The most interesting part of the software (many many options in the reports) is the "Look Back Line"
This uses the prior race double betting pool to create a win equivalent pool, which is usually very close to the actual off win odds. We all have seen late odds crashes on our picks, this gives some indication of what the final odds will be.
You can find it on the HTR software's page:
http://htr2.com/atr/at_the_races.htm
(TrackJudge generates an oddsline which can be imported into ATR, or you can use the morning line.)
For place or show bettors, it is nice to see what your payoff range will be, and when the bet is a positive advantage bet.
I have no business relationship with Gary, I just like and use his software.