Jack Draper hailed the strength of British tennis after Jacob Fearnley and Cameron Norrie joined him in the last 32 of the Madrid Open.
Fifth seed Draper defeated world number 34 Tallon Griekspoor of the Netherlands 6-3 6-4 after Fearnley and Norrie had beaten seeded opponents.
Fearnley, ranked 68 in the world, beat a top-20 player for the first time, recovering from losing the first set against Tomas Machac of the Czech Republic, the 19th seed, to come through 1-6 6-3 6-2.
His next opponent will be former Grand Slam semi-finalist and world number three Grigor Dimitrov of Bulgaria, the 15th seed.