Have any two fighters produced 3 action packed fights within a twelve month period as Isreal Vasquez and rafeal marquez?
Sugar Ray Robinson vs Jake LaMotta I,II & III were spread across less than 6 months! (October 1942 (I) - February 1943 (II & III)
I can't think of any other trilogies where two fighters delivered 3 absolute wars against each other in the coarse of only a single year.. There might be a few instances where such battles occurred in maybe two years, but not in such a short duration.