In 1997 Kipketer was at the peak of his career. In March he won the 800 m gold at the Indoor World Championships in Paris, France. In fact, he broke the indoor world record time in the heats by nearly a second, beating Paul Ereng's WR 1:44.84 with his 1:43.96. Then in the final he took yet another second off the world record with a scintillating 1:42.67. On 7 July he tied Sebastian Coe's world record (1:41.73) for the 800 metres at a meeting in Stockholm, Sweden. Coe's record had stood for sixteen years. He went on to break the record twice that year, the first time being in Zurich, Switzerland at the Weltklasse Zürich GP on 13 August when he ran 1:41.24. (His was one of three world records to fall in a 70-minute stretch at this remarkable meet, the other two being the 5,000 meter record to Haile Gebrselassie and the 3,000 meter steeplechase to Wilson Boit Kipketer. To the latter, he is not related.) Eleven days later, on 24 August, he improved the world record to 1:41.11 at the Grand Prix meet in Cologne, Germany. On 8 August, in the 1997 World Championships in Athletics at the Olympic Stadium, Athens, Greece, he led the race from start to finish, blazing the first 200 meters in 23.47 seconds, and successfully defended the World Championship title he had won in 1995. He was voted Track &amp; Field Athlete of the Year by Track and Field News Magazine.