âThe regulations would now only apply to athletes with what they called âdifferences in sexual developmentâ (DSD) and only to those competing in the 400-, 800-, and 1500-m distances. Since Dutee Chand was a 100-m runner, she would not be affected by these rules. The IAAF didnât need to address her case. The testosterone limit would need to be lowered from the original 10 nmol/L theyâd announced in 2011 down to 5 nmol/L for a period of six months before an affected athlete was eligible to compete.