The purpose of this study was to identify differences in (1) total skiing time and (2) lap time for different course situations in cross-country skiing (uphill, flat and downhill) between classical-style sub-techniques using classical skis and double poling and herringbone sub-techniques using skating skis. The subjects were 5 college cross-country skiers who performed at maximal effort in 2 different trials: classical-style sub-techniques while wearing classical-style skis (CL), and double poling and herringbone sub-techniques while wearing skating-style skis (DP). Skiing velocity was measured with a global navigation satellite system module and mobile PDA. The sub-techniques employed were recorded with a small video camera. It was found that a strategy using DP (1) significantly increased the skiing time, (2) increased the skiing velocity on downhill and decreased it on uphill, and (3) was associated with a tendency to use double poling on uphill.