Dimitris Chronis, a 74-year-old marathon runner from Ioannina, Greece, has made history by becoming the first Greek athlete to finish all seven of the world’s major marathons. He achieved this remarkable feat at the Sydney Marathon, now recognized as the seventh World Major Marathon, as part of the Abbott World Majors Marathon Age Group Championship. Chronis, who transformed his life from being overweight and smoking to becoming a dedicated athlete, emphasizes that it is never too late to change one’s lifestyle for better health.