https://community.usms.org/swimming/f/general/7186/t-30---determining-pace-timeWhat is the formula for determining you pace time in a T-30 swim. Do you divide seconds into yardage or vice versa. No matter what I try I get some really weird numbers.en-USTelligent Community 12https://community.usms.org/thread/107704?ContentTypeID=1Sun, 19 Oct 2008 13:45:46 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:bfeecdfa-6f79-45f5-a713-908c81170cfcFormer MemberWhat is the formula for determining you pace time in a T-30 swim. Do you divide seconds into yardage or vice versa. No matter what I try I get some really weird numbers. Calculate the number of 100s you complete. Then divide the total time (30 minutes) by the number of 100s to calculate your time. Example: You swim 1900 yds. That equals 19 100s. 30 minutes divided by 19 = 1.58 minutes or 94.7 seconds or 1:34.7 per 100. You might use that number to pace aerobic sets. Maybe 15x100 @ 1:40.<div style="clear:both;"></div>