CREATE TABLE table_32818 ("Year" FLOAT, "Rider" TEXT, "Country" TEXT, "Distance" TEXT, "Pacing" TEXT, "Velodrome" TEXT)

What velodrome took place earlier than 1950 with a winner from France in tandem paced over a distance of 951.750 km?
SELECT "Velodrome" FROM table_32818 WHERE "Year" < '1950' AND "Country" = 'france' AND "Pacing" = 'tandem paced' AND "Distance" = '951.750 km'
SELECT "Velodrome" FROM "table_32818" WHERE "Country" = 'france' AND "Distance" = '951.750 km' AND "Pacing" = 'tandem paced' AND "Year" < '1950'