The fastest serves in the Olympics are by Ivan Zaytsev (Italy), Gyorgy Grozer (Germany) and Cristian Savani (Italy) with a speed of 127 kilometres per hour.
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She starts serving @ 15-9 and just totally dominates the set until the very end. Sweeeettttttttt! You NEED to watch how Queen Logan did it. AMAAZZZINNNGGG!