LAS VEGAS >> Boxer Floyd Mayweather Jr. has made good on a promise to a Nevada judge to donate $100,000 to a breast cancer support organization.

The undefeated prizefighter gave the money Wednesday to officials from the Susan G. Komen for the Cure research and support foundation. The presentation was made during a news event at his gym in Las Vegas.

Foundation executive Stephanie Kirby tells The Associated Press the donation will go a long way at the Las Vegas nonprofit, which operates with about a $1 million annual budget.

Mayweather’s lawyers promised the judge who sentenced Mayweather in December in a domestic battery case that the boxer would make the donation. Mayweather, who goes by the nickname “Money,” is due to serve a 90-day jail sentence in the case beginning June 1.