Here are the most probable feature breakdowns for each context: "Polytrack" is a trademarked synthetic horse racing surface (wax-coated sand, fibers, rubber). "Links" here usually refers to track connections (e.g., linking training tracks to main tracks, or data links).
Here are the most probable feature breakdowns for each context: "Polytrack" is a trademarked synthetic horse racing surface (wax-coated sand, fibers, rubber). "Links" here usually refers to track connections (e.g., linking training tracks to main tracks, or data links).