1) login to USABMX.com 

2) go to Rider Info>Race History

3) Find the race in question. In my case the result was Zero, but needed to be Three.

4) Click on the Question mark (listed for 45 days standard?) Note: a ? mark will remain is USABMX has no result for that race.

5) Add a description of the race results and why the finish should be different. then submit it.

http://www.mediafire.com/view/v9509ltp9hbj3gu/How_to_Audit_your_BMX_race_results.pdf