There are 3 levels (Basic, Enhanced, Premium) of Today's Racing Digest race sheets.  This is the Basic level race sheet for one individual race.  This Basic level race sheet includes the following:

Header: Lists the distance and conditions of the race, Digest race level, purse, average times for this level on an unbiased track, favorites win and in the money percentages.

Notes/Stats Each horse entered in today's race is listed in post position order including, jockey/trainer stats, breeding stats, trainer stats, trip notes, workouts, and the last 10 FIRE #'s.
The Data Lines: Each horse's last six past performance lines are listed here, along with such important information as Track Bias, Pace and Final Time Ratings. The Digest Data Lines include our exclusive pace and final time ratings that have been adjusted to reflect today's race. This makes it easy to compare the past performances of each individual horse.  

To lean more about how to read and use Today's Racing Digest go to http://www.todaysracingdigest.com/tutorial/