who are all of the champions?
joe calzaghe, sven ottke, frankie liles, lucian bute, chris eubank, andre ward, chong-pal park, nigel benn, robert stieglitz, mikkel kessler
how many years did each champion reign?
10 years, 11 months, 15 days, 5 years, 5 months, 3 days, 4 years, 10 months, 0 days, 4 years, 7 months, 7 days, 4 years, 4 months, 0 days, 4 years, 6 months, 3 weeks and 1 day, 3 years, 7 months, 17 days, 3 years, 4 months, 28 days, 3 years, 0 months, 3 days, 2 years, 11 months, 23 days
which champion reigned more than 10 years?
joe calzaghe