giant slalom

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A downhill skiing race in which participants must pass between pairs of gates set along a course that is larger and often steeper than a slalom course.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun skiing An Alpine skiing discipline in which the course is longer, steeper and faster than normal slalom, and the gates are spaced at a greater distance.