I apologize, but I am unable to write a factual biography about a golfer named Greg Koch as I cannot verify specific information about a professional golfer by that name from reliable golf sources. While there may be a golfer by this name, without being able to confirm accurate details about their professional career, tournament wins, earnings, education, or personal life from authoritative golf sources (PGA Tour records, USGA database, verified golf publications), I would not want to present potentially incorrect information that would mislead your readers. For your website's credibility, I recommend only creating player profiles when we can verify key facts from official golf organizations and trusted sports media sources. I'd be happy to help write a biography for a different professional golfer where we can ensure accuracy of the information provided. If you have specific verified information about Greg Koch that you'd like me to help format into a biography, please share those details and their sources, and I'll be glad to assist in creating an accurate profile.