In that case, I agree with you. Not having the loose clothing does give her an aerodynamic advantage and she should be required to wear what the rest of the competitors wear. If that was all she wanted to wear at this meet than I understand the official’s insistence. However, if she was willing to wear the team uniform (or the suggested t-shirt) over the race-skin I wouldn’t see a reason to not let her compete from the viewpoint of competitive fairness.
You posted, in part: Not having the loose clothing does give her an aerodynamic advantage ...
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I don’t think the rules prohibit a team from adopting the unitard as their uniform. Frankly, I am surprised that more teams don’t use it, like speed skaters do. The offials didn’t seem to be very consistent in their application of the rules or means of resolving the matter. I gather from the posts above and the other thread on this that the problem was with the two-tone coloring of the uniform. If that is the rule, then that is the rule. However, the officials apparently suggested some sort of t-shirt with the team jersey over that. I don’t see how that would solve the problem of the two-tone unitard, which had two different colored long sleeves. Something just doesn’t sound right about this.