The commission will hold its last formal hearing in mid-December and then spend six months writing a final report.
The payment represented legal fees the commission had spent to defend the civil charges.
In 1992, for example, the commission spent $494,800 to regulate 31 boxing shows.
But the commission turned down his petition and spent its resources on what he said were much less important plants.
The study also showed the continued lack of transparency in how the commission spends its money.
Last month the presidents' commission called for rules that would reduce the amount of time athletes spend on sports.
They met with reporters after the commission had spent two days hearing from 17 of the nation's premier college basketball and football coaches.
The commission has spent $15 million of $25 million appropriated.
The commission spent nearly 90 minutes at a press briefing yesterday refuting some of the studies.
The commission spent more than 10 months in court defending the siting process.