He played college golf briefly in the United States at the University of Florida.
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In the joint longest playoff in European Tour history, Kieffer was beaten by a Raphaël Jacquelin birdie on the ninth playoff hole.
Maximilian I, Holy Roman Emperor | Ludwig Maximilian University of Munich | Maximilian I of Mexico | Maximilian I | Maximilian Schell | Maximilian | Maximilian II Emanuel, Elector of Bavaria | Maximilian II | Prince Maximilian of Wied-Neuwied | Maximilian I Joseph of Bavaria | Emperor Maximilian | Maximilian Willibald of Waldburg-Wolfegg | Maximilian Voloshin | Maximilian von Weichs | Maximilian Kolbe | Maximilian II, Holy Roman Emperor | Philippe Kieffer | Maximilian Harden | Maximilian von Spee | Maximilian von Prittwitz | Maximilian von Herff | Maximilian Ritter von Pohl | Maximilian of Bavaria | Maximilian Hecker | Guy-André Kieffer | Archduke Maximilian | Aldine Silliman Kieffer | Rolf Maximilian Sievert | Prince Maximilian of Wied-Neuwied's | Prince Maximilian of Baden |