The rating system compares each rider to the average of the top 25 riders by starts at that track in the areas of win percentage, earnings per start, and wagering return on investment (that is, what a $2 win wager on every one of the rider’s starts would have returned the bettor). Only jockeys that have made at least 20 total starts are included on the list.

We have made two tweaks to the calculations. First, we now base the calculations on the top 25 riders at each track by starts, limiting it to those that have won at least once, rather than the top 25 by wins.

Second, each rider’s rating is now a composite rating including their scores from all tracks in the region at which they ride. Thus, for example, rather than there being three different scores for Trevor McCarthy – who’d been riding at Laurel, Monmouth, and Delaware – he now has a single combined score.

The average for all riders with at least 20 combined starts is 2.71 points. The top 47 riders all exceed that total, ranging from Laprida’s 4.947 to the Delaware-based Abner Adorno, with 2.756.

At the other end of the list are 10 riders with scores under 1.00.

Arnaldo Bocachica, who is fourth overall, has 4.447 points to lead the Charles Town contingent of riders. He’s just ahead of Christian Hiraldo (4.423 points), who is fifth overall.

Apprentice rider Alexander Crispin is the region’s top bug rider and also the leader of riders at Delaware Park. He has 15 wins to date, and his 3.946 points put him in ninth overall.

Feargal Lynch and Sheldon Russell, who are in 10^th and 12^th places overall, respectively, head the riders based at Laurel Park. Lynch’s 3.942 points stem from a 20% strike rate and high earnings per start, while Russell, who is currently out with a wrist injury, has 3.830 points.

The list includes all racing action through Sunday, August 2. It does not include racing at Colonial Downs, which to date has just four programs complete.

What did last week’s list look like?

TOP MIDLANTIC JOCKEY RATINGS