Ernest John Obiena cleared a season-best 5.91 meters for a silver-medal feat that reset his own indoor national record in the Perche Elite Tour on Sunday in Rouen, France. The world’s No. 5 pole vaulter wound up behind 2020 Tokyo Olympics silver medalist Chris Nilsen of the United States after the latter claimed the gold medal with a personal-best 6.05 meters. It was the first silver medal for the 26-year-old Filipino vaulting ace since the indoor season began last month. The achievement eclipsed Obiena’s victories of 5.81m in the Orlen Cup and Orlen Copernicus Cup in Poland. Philippines’ Erne…