DC batters implode in a fifth successive home defeat as Finn Allen’s century shows hosts the way in KKR’s eight-wicket win at Kotla. The mathematical equations could be marginally alive. But the harsh bearings of the recent batting slump have staggered Delhi Capitals’ season before their eyes, in their own backyard. The result was another breezy chase for the visitors. Worse, a marauding Allen even tore their vaunted bowling attack to shreds with a 47-ball ton studded with 10 sixes. KL Rahul had batted out the full 20 overs the last time he was on this strip. He walked back unbeaten, on 152, the highest-ever score by an Indian in the league. On Friday, Rahul hung back and waited for the loose lengths from the Kolkata Knight Riders spinners until the slowness began to jerk the bat in the powerplay. Hard hands, a stiff bottom grip and a forced slog proved his early undoing, slowly unravelling the now familiar script. Even as Pathum Nissanka implied positive timing, warping the bowlers with his pick-up pulls and …