Does Kakashi have Nine Tails Chakra? He said he cant warp big things without it and you know, Gaara's contructions are as big as big can get. Gaara wins by blocking line of sight with Mother Sand and uses Sand Drizzles as aerial projectiles to inflict wounds from far away distances. Sand Pyramid sealing technique ends match.
------>>> Gaara can crumble the minerals and conjure the hardest types of sands to construct impenetrable walls to block Wood Elemental attacks from hitting him. He can fly. He can use the Shukaku's JuinJutsu to seal Kakashi by conjuring sand in his radius.
-------->>>> He can counter all of Wood Element, the Pillar Seals wont touch him ; They are close range, Gaara has his own special seals to break it.
------>>>>.......Gaara stomps(if Kakashi has zero NineTails Chakra.)