Similarly, this Sunday's Superfrog Triathlon near San Diego was close to obtaining USAT certification when Armstrong applied for entry this month.

WSJ: Triathlons Part Waters for Lance Armstrong

But when presented with a recent race request from Armstrong, Half Full for this year decided to sacrifice its USAT certification.

WSJ: Triathlons Part Waters for Lance Armstrong

It is largely responsible for the huge growth in USAT's membership roles.

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For two years running, it had boasted USAT certification, a distinction that lowers insurance rates while offering professionals a chance to boost their international rankings.

WSJ: Triathlons Part Waters for Lance Armstrong

That extra race revenue advances the Half Full mission of raising funds for cancer, as does Armstrong's cancer-battling track record, said Satola, adding that he would permanently trade USAT certification for Armstrong's participation.

WSJ: Triathlons Part Waters for Lance Armstrong

For USAT, as ever, the analysis is tacit.

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