A 23-year-old athlete achieved his personal best time with his international debut at the Copenhagen Half Marathon. Ed Buck, of Newark’s Athletics Club, was selected for England to run at the half marathon, achieving a time of 65.23, not far from Norway’s legendary track star Jakob Ingebrigtsen. Despite being a tough run — especially the last 5K as they headed into a headwind — the Newark athlete considered the international run one of his best performances. “I really enjoyed it, the atmosphere was great and rubbing shoulders with world-class athletes from all around the world has given me an …