Originally Posted by Top_Cat
Think you're discounting the psychological aspect of a bloke scoring a ton against you. Someone scoring 150 then 20 is going to hurt you more than the same bloke scoring an even number of runs in each innings. A bloke going onto a ton is also going to lift his team-mates more than a guy who gets a high 50, the feeling of the later is more of a job half-done. The team capital and confidence drawn from a ton is just far more than a couple of 50's.
To be fair a bloke scoring a pair of 85's in each innings is pretty useful. Katman to confirm.