BLAGNAC, FRANCE, JULY 15 -- Rolf Golz of West Germany won the 15th stage of the Tour de France cycling race today, outpedaling Roland Le Clerc of France and Martin Earley of Ireland. Charles Mottet of France retained the overall lead.

Golz and LeClerc were timed in 3 hours 57 minutes 59 seconds. Earley was four seconds behind. Andy Hampsten of the United States was seventh, 11:47 off the pace.

A break by Golz, Le Clerc and Earley dominated today's 102-mile stage. Their 22-minute lead over the following group was reduced to nearly 12 minutes when Australia's Phil Anderson crossed the line in fourth place.

The leg, ridden at an average speed of 25.5 mph in very stormy weather, enabled Mottet to increase his overall lead to 2:20 over Jean-Francois Bernard of France and to 2:33 over Stephen Roche of Ireland.

In the women's Tour, Tamara Poliakova of the Soviet Union won the sixth-stage time trial, but Jeannie Longo of France kept the overall leader's yellow jersey.

Poliakova completed the 21-mile course from Plaisance-du-Touch in 45:45, averaging 26.5 mph. Maria Canins of Italy was second, 23 seconds back, with Longo 52 seconds behind.

Longo leads Canins by 20 seconds overall.