For what it is worth, the SDQL text:
starter=Roy Halladay and o:R1
will give a complete distribution of the the number of occurrences of runs allowed in the first inning by Roy Halladay. Since 2004 (the start of the database), Halladay has made 247 starts. Here is the distribution of runs scored in the first inning by their opponent.
Zero runs - 174 times
One run -- 44 times
two runs -- 20 times
three runs -- 8 times
four runs -- once
five-plus runs -- none
The SDQL text for this season is:
starter=Roy Halladay and o:R1 and season=2012
And the distribution is:
Zero runs - 7 times
One run -- twice
two-plus runs -- none
Since he has been with the Phillies:
team=Phillies and starter=Roy Halladay and o:R1
Here is distribution is:
Zero runs - 56 times
One run -- 15 times
two runs -- 7 times
three runs -- once
four plus runs -- none
To see the distribution of the TOTAL number of runs scored in the first inning in Halladay's starts since he's been with the Phillies, the SDQL is:
team=Phillies and starter=Roy Halladay and o:R1+R1
Here the distribution is:
Zero runs - 42 times
One run -- 18 times
two runs -- 8 times
three runs -- 9 times
four plus runs -- once
five plus runs -- once
So, in Roy Halladay's 79 starts with the Phillies, there was no runs scored in the first inning in 42 of them.
SDQL Guru