So I bought a 1 day subscription to B-R to use their stat finding tool, and found Neftali Feliz has some record potential.  

I placed a minimum of 22 innings to eliminate guys who made even briefer appearences since he will be signifcantly past 22 innings at the end of the season anyway.  Obviously no matter what its going to be a pretty low innings requirement, but hey we are looking at decades of seasons so its still quite telling in my opinion.  Beyond the innings there are no qualifiers, just straight up 1901 to 2009 MLB seasons for some stats, 1954 to 2009 for those unavailable previously.

click here to see the image in its own window.

WHIP: This is by far the most interesting stat because of his significant lead.  Lets say he throws 18 more innings to reach 40, which would be an almost respectable innings cutoff for a reliever.  If he could allow a completely reasonable 18 or fewer additional walks/hits, Feliz would hold the record for lowest WHIP ever in a 40+ inning season at .6 (or lower).

K/BB: Well this is sure to drop heavily, I just can't see him matching it at 1 batter the rest of the way.  But again lets project an at least possible 20/4 the rest of the way and ends up at around a 10 k/bb rate.  That again could keep him on the leaderboard + knocking some guys out with the innings requirement again (I'll stop repeating this now).

H/9: This is one that would be heavily effected when you raise the innings requirement.  He can't maintain his current hit rate but he could still be very high for people who throw 35+ or however many innings.

No real commentary on the others beyond that he is almost sure to fall off the lists on era and bb/9.  However I will add that since I made the image I looked up .ops against and the record with at least 20 IP .316, or Eric Gagne's .375 with a 40 IP requirement.  Feliz is at .209.

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And finally, some non-speculative stats I've managed to figure out.  Lots of qualifiers but whatever.

Feliz is the only reliever to start a season with 8 games of at least 1.1 innings pitched in which only 1 or 0 baserunners reached.  Drop it to a more conventional at least 1 inning per game and hes the 15th behind a bunch of top tier closers. 

He is the 9th middle reliever (eliminating guys who went more than 3 innings in an outing) to start a season with 5 games of 2 strikeouts or more. First to do so to start his career.

I'm sure the k/bb, whip and such would be all over such records to start a season, but BR does not allow me to search that.

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He could easily fall off all these lists and obviously he'd still be an amazing prospect that I love having on the team, although if he does I'll just have to add some time period/rookie year qualifiers =).  Anyway I enjoyed getting some historical perspective to just how good hes been and thought some others might too.

So remember- Don't worry, be happy.