Complex sentence: He represented Ireland at the European 100K Championship in 2006, and in 2007 finished 5th at the USATF 50 Mile Trail National Championships, and was Masters National Champion Runner-Up.
Split into simpler sentences: He represented Ireland at the European 100K Championship in 2006. In 2007, he finished 5th at the USATF 50 Mile Trail National Championships, and was Masters National Champion Runner-Up.