things you wanted to know about extra innings

Craig Biggio didn't get hit by a pitch in last night's 15 inning contest at Pittsburgh, but if he had, it would have only been the second longest game he'd ever been plunked during. The longest game in which Craig Biggio was plunked was against the Cubs on May 31, 2003. Biggio was hit by Carlos Zambrano in the 7th inning, but the Astros were held scoreless through 16 innings before losing 1-0 in the bottom of the 16th.
Through last season, Biggio had played in 272 games that went to extra innings, and he got hit by a pitch in 27 of those games. But, he only got hit by a pitch after the 9th inning in 6 of those extra inning games. In those 272 extra inning contests the Astros won 131 and lost 141. Their record is slightly worse in the extra inning games in which Biggio was hit by a pitch, at 11-17. In the six games he got hit in extra innings, they won 3 and lost 3, but only 1 of those 6 was a home game (they won that one).
Perhaps most interestingly, 3 of the 6 pitchers who have plunked Biggio in extra innings were named Tim - Tim Birtsas, Tim Fortugno, and Tim Scott. And, only 1 Tim - Tim Worrell - ever plunked Biggio in a non-extra inning. (Maybe, to help Biggio get a few more extra-innings HBPs, instead of calling it extra-innings, it could be "overTim")

Biggio was hit in an extra inning twice at Riverfront Stadium (by Tims), but has not been hit later than the 9th inning more than once at any other park. He was hit a total of 3 times at Riverfront Stadium in games that went into extra innings. Only the Astrodome hosted more extra-inning games in which Biggio was plunked, with 8.

innings and outs

If the Astro's continue to go with their latest shuffling of the batting order, which has Craig Biggio batting 6th in the lineup, Biggio might have a chance to do something else that he's never done. Because he has been near the top of the batting order for so much of his career, he has been plunked 56 times in the first inning, but never with with 2 outs.
Interestingly, Biggio's 2 out HBPs have occurred, on average, later in the game than his 1 out plunks and no out plunks. The average of the innings in which he's been hit with no outs is 3.8. It's 5.0 for 1 out plunks and 5.42 for 2 out plunks. While nearly 39.3% of Biggio's plunks with no outs in an inning have come in the first inning, none of his 6 extra innings plunks have been recorded with no outs. The median inning of his no out plunks is the 3rd, but the median inning for his 1 out and 2 out plunks is the 5th. He's been hit most often with no outs in the 1st inning, but his best inning for 1 out plunks is the 5th, and for 2 out plunks it's the 7th.

Here are the number of times he's been hit in each inning by number of outs:

Inning	0 outs	1 out	2 outs
1	46	10	0
2	3	6	6
3	12	16	13
4	10	7	10
5	10	18	8
6	6	8	8
7	12	12	14
8	12	8	6
9	6	5	3
10	0	2	1
11	0	0	1
12	0	0	1
13	0	1	0
total	117	93	71

I have yet to find a theory to explain this.

Craig Biggio has also never been plunked while batting 6th in the lineup. He's been hit in every other batting slot except 4th. On April 16th this year, he had his first ever plunk in the 9th spot in the batting order, while pinch hitting. Retrosheet lists his stats through 2005 by batting order slot on their splits page here.