Abstract A method has been developed which allows the simultaneous determination of both a skier's drag area and the friction coefficient of his skis against the snow in a single measurement. The method requires time measurements at four equidistant points on a horizontal track. Thus three velocity determinations are possible. From these velocity values the coefficient of friction and the drag area can be determined. Measurements for two skiers were made on a track consisting of a slope that ended up on the level ice of a lake. The results show that the drag area values of 0.5 m 2 for a semisquatting position and 0.9 m 2 for an upright position can well be adopted when corrected for the height of the skier. An accuracy of ± 10% was reached in the determinations of the coefficients of friction.