McKeever began skiing at the age of three and started competing at thirteen. At 19 he began losing his vision due to Stargardt's disease. At the 2002 and 2006 Winter Paralympics he competed in both cross-country skiing and biathlon. He won two gold medals and a silver in cross-country the first year and bronze medal for biathlon plus two gold medals and a silver for cross-country skiing in the later year. For his performance at the 2006 Games McKeever was named Best Male at the Paralympic Sport Awards.