Many of Puett's actual gates are still in use today at tracks around the world, and all gates are based on his original design. A starting gate is equipped with a number of stalls aligned in a row, usually numbering 12 or 14 for everyday use at tracks. Smaller gates may be used at training facilities for schooling horses, or as an auxiliary gate in addition to the main gate for large-field races such as the Kentucky Derby. The 1 46th running of the Kentucky Derby, in 2020, used one combined horse race starting gate from Steriline Racing for the first time. Safety was the main driver for Churchill Downs to look for a new starting gate solution. ""We believe this new gate will improve safety for both horses and riders"" said Mike Ziegler, Executive Director of Racing for Churchill Downs.