USA Swimming has a number of programs to help swimmers reach the next level in their swimming careers. One of those programs is the IMX series designed to help various age groups compete in multiple events, rather than specialize in one stroke too early.
The IMX ranking includes a series of five or six events at longer distances. Once you've completed the IMX program, you can find out where your IMX score ranks nationally, within your zone, within your LSC rank and on your club.
9 & Under; 10-year olds: 200 Free, 100 Back, 100 Breast, 100 Fly, 200 IM
11-year olds; 12-year olds: 400 Free (LC) or 500 Free (SC), 100 Back, 100 Breast, 100 Fly, 200 IM
13-18-year olds: 400 Free(LC) or 500 Free (SC), 200 Back, 200 Breast, 200 Fly, 200 IM, 400 IM
For additional information on IMX scores: IMX Scores Information - USA Swimming
To find your IMX Score Ranking: IMX Score Ranking