What does this notation mean?

If you are unfamiliar with baseball scoring, you can learn traditional scoring from the wikipedia article or learn Project Scoresheet from Alex Reisner's great site. The table below shows all plays used by this bingo generator, sorted in descending order of likelihood.

Project Scoresheet Traditional Full description
Ks Ks Strikeout (swinging)
W BB Walk
8 F8 Flyout to center
43 4-3 Groundout 2B to 1B
63 6-3 Groundout SS to 1B
9 F9 Flyout to right
7 F7 Flyout to left
D 2B Double
S8 1B (Center) Single (center)
Kc Kc Strikeout (called)
S7 1B (Left) Single (left)
S9 1B (Right) Single (right)
53 5-3 Groundout 3B to 1B
3 3-U Unassisted 1B
HR HR Home run
S (IF) 1B (Infield) Single (infield)
13 1-3 Groundout pitcher to 1B
4 4-U Unassisted 2B
6 6-U Unassisted SS
E E Error
5 5-U Unassisted 3B
DP DP Double play
SB SB Stolen base
HP HBP Hit by pitch
31 3-1 Groundout 1B to pitcher
SH SH Sacrifice bunt
WP WP Wild pitch
SF SF Sacrifice fly
IW IBB Intentional walk
CS CS Caught stealing
PO/PB/BK PO/PB/BK Pickoff OR Passed ball OR Balk
T 3B Triple