Rankings include athletes that have thrown in 2017 and 2018 ranked by order of the 2018 season best. The 2017 column list the athletes 2017 season best and the difference column list the athletes difference in the two marks. If an athlete's mark is listed at (xx-xx) in the difference column that means they had a positive improvement from their 2017 seasons best. If the difference doesn't include parenthesis then it shows how close they are to achieving their 2017 seasons best.
Girls Shot Put Improvement Rankings