Here is exactly how the 12-runner field for the 4.55 Yarmouth breaks down into Eric Bowers’ three-tier class structure.
With an 11-pound spread from the Top OR (82) to the Bottom OR (71), we split the handicap into three relatively even bands:

The Top Tier: "Above Class" (OR 79 – 82)
These two horses are the class of the field based on past performance. They are being asked to carry the top weight to give the rest of the field a fighting chance, but they theoretically have the most natural ability.
• Miletus (82)
• Philanthropist (82)

The Middle Tier: "In Class" (OR 75 – 78)
This is the core of the handicap. These horses sit right on or around the mathematical midpoint (76.5) and median (77). They are carrying average weight against horses of very similar current ability, making this the most competitive block.
• Dashing Dick (78)
• Gorgeous Mr George (78)
• Captain Parma (78)
• Candonomore (77)
• Documenting (77)
• Grabajabba (76)
• Man Of Desert (75)

The Bottom Tier: "Below Class" (OR 71 – 74)
These are the lightweights of the race. Mathematically, they are the lowest-rated horses stepping up in class to face tougher opposition. However, they are receiving a handy weight advantage from the horses in the top tier as compensation.
• Shimmering Spin (74)
• Mister Mojito (72)
• Rogue Allegiance (71)
With the tiers mapped out for this perfectly balanced race, the next step is to calculate the Bowers Ratings using the Top OR (82), each horse's individual OR, and their live betting odds to see where the mathematical gap forms!