Athlai
Not Terrible
Actually if we extend this slightly further and throw in a duck it would appear they haven't.They're not scoring half those runs though! They're scoring the same amount of runs, just scoring them over the course of two innings instead of in one. It may be a lesser contribution- although considering that in Dhoni's case it means India have won I'd dispute even that- but it's no less difficult. The man who scores 35*, 35 has done EXACTLY the same thing as the guy who scores 70.
Player A: 35*, 35, 0 = 70 @ 35
Played B: 70, 70, 0 = 140 @ 46.67
(Ikki did say two 70s right?)