A good discussion exists here. Here's a link to a work done by TangoTiger (Link.), and his conclusion is summed up as follows.. He comes to a bit of a different conclusion than the fact it doesn't exist. He claims it is an actual ability, but that the effects of it are limited. Another study is included here. His conclusions were as follows... There's more to read, and frankly, I find it interesting. What I think we can take from it, has been stated already. First, if clutch hitting exists as an ability, it's not going to show itself in enough situations to make much difference over the course of a season. Secondly, it's very hard to peg players as "clutch" because it's not a skill that seems to repeat itself year after year. Third, while some players may appear to be anti-clutch or clutch, it's still not wise to make player personel decisions based on this idea. Continue the debate if you must, but I think that's about all that needs to be said.