Stats Glossary

Every stat abbreviation used across the site, in alphabetical order, with the formula behind it where one applies.

Abbreviation	Full Name	Formula	Notes
1B	Single	H − 2B − 3B − HR	A hit where the batter reaches first base.
2B	Double	–	A hit where the batter reaches second base.
3B	Triple	–	A hit where the batter reaches third base.
A	Assist	–	Credited to each fielder who throws or deflects the ball on a play that results in an out (or would have, except for a later error). The fielder who records the out gets the putout.
AB	At Bat	–	A plate appearance that counts toward batting average — excludes walks, HBP, sacrifices, and catcher's interference.
AVG	Batting Average	H / AB	On pitching tables, AVG is the opponents' batting average against that pitcher (H allowed / AB against).
BABIP	Batting Average on Balls In Play	(H − HR) / (AB − SO − HR + SF)	Batting average limited to balls actually put in play — strips out strikeouts and home runs. Noisy in small samples.
BB	Walk	–	Also called a base on balls.
BB%	Walk Rate	BB / PA (hitters), BB / TBF (pitchers)
BIP	Balls In Play	AB − SO + SF + SH	Every batted ball, including home runs and bunts. The base for the batted-ball rates (GB%, LD%, FB%). Unlike the BABIP denominator, home runs count.
BK	Balk	–
BS	Blown Save	–	A save opportunity in which the pitcher allowed the tying or go-ahead run to score.
C	Chances	PO + A + E	Also called Total Chances (TC) on some pages.
CG	Complete Game	–
CI	Catcher's Interference	–
CS	Caught Stealing	–	Charged to a baserunner thrown out attempting to steal.
CSB	Caught Stealing (Against)	–	Runners caught stealing while this player was on the field, pitching or catching.
Dec	Decision	–	The pitcher's win (W), loss (L), or save (SV) in that game, if any.
DP	Double Play	–	Double plays this fielder was involved in turning.
E	Error	–
ER	Earned Run	–
ERA	Earned Run Average	ER / IP × 9
FC	Fielder's Choice	–
FIP	Fielding Independent Pitching	(13·HR + 3·(BB+HBP) − 2·SO) / IP + FIP constant	An ERA-scale stat built only from outcomes a pitcher directly controls (K, BB, HBP, HR). The constant changes each season; see FIP Constants below.
FLD%	Fielding Percentage	(PO + A) / C
G	Games	–	Games played (hitting/fielding) or games pitched in (pitching).
GDP	Grounded Into Double Play	–
GS	Games Started	–
H	Hit	–
HBP	Hit By Pitch	–
HLD	Hold	–	Credited to a relief pitcher who protects a lead without finishing the game.
HR	Home Run	–
HR/9	Home Runs per 9 Innings	HR / IP × 9
IBB	Intentional Walk	–
IP	Innings Pitched	Outs / 3	Displayed in thirds — 6.2 means 6 and two-thirds innings, not 6.2 decimal innings.
ISO	Isolated Power	SLG − AVG	Extra bases per at-bat.
K%	Strikeout Rate	SO / PA (hitters), SO / TBF (pitchers)
K-BB%	Strikeout Rate Minus Walk Rate	K% − BB%	Pitching only.
K/9	Strikeouts per 9 Innings	SO / IP × 9
L	Loss	–
LOB%	Left-On-Base Percentage	(H+BB+HBP − R) / (H+BB+HBP − 1.4·HR)	Share of baserunners a pitcher strands without letting them score.
NP	Number of Pitches	–	Pitches thrown.
OBP	On-Base Percentage	(H+BB+HBP) / (AB+BB+HBP+SF)
OPS	On-Base Plus Slugging	OBP + SLG
PA	Plate Appearance	AB + BB + HBP + SF + SH + CI	Every completed turn at bat, including sacrifice bunts and reaching base on catcher's interference (NCAA Rule 10-27).
PB	Passed Ball	–
PO	Putout	–
QS	Quality Start	–	At least 6 innings pitched with 3 or fewer earned runs allowed.
R	Run	–
RBI	Run Batted In	–
RISP	Runners In Scoring Position	–	A runner on second or third base.
SB	Stolen Base	–
SBA	Stolen Base(s) Allowed	–
SF	Sacrifice Fly	–
SH	Sacrifice Hit	–	Also called a sacrifice bunt.
ShO	Shutout	–
SLG	Slugging Percentage	TB / AB
SO	Strikeout	–
STR	Strikes	–	Pitches that were strikes, including fouls and balls put in play.
SV	Save	–
TB	Total Bases	1B + 2·2B + 3·3B + 4·HR
TBF	Total Batters Faced	–
W	Win	–
WHIP	Walks Plus Hits per Inning Pitched	(BB + H) / IP
wOBA	Weighted On-Base Average	(wBB·BB + wHBP·HBP + w1B·1B + w2B·2B + w3B·3B + wHR·HR) / (AB + BB + SF + HBP)	Credits each way of reaching base by how much it is worth in runs. The weights change each season; see wOBA Weights below.
WP	Wild Pitch	–

FIP Constants

Each conference has its own FIP constant, and it changes every season. Mississippi State's stats use the SEC's; a transfer's seasons at another school use that school's conference.

Conference	2026	2025
SEC	3.629	3.692
ACC	3.855	3.814
ASUN	4.207	4.177
America East	4.095	4.515
American	3.892	3.963
Atlantic 10	4.309	4.437
Big 12	4.046	3.933
Big East	4.367	4.278
Big South	4.345	4.833
Big Ten	3.755	3.838
Big West	4.037	4.170
Coastal Athletic	4.288	4.339
Conference USA	4.152	4.045
Horizon	4.951	4.972
Independent (Oregon State)	3.257	–
Ivy League	4.042	4.490
MAAC	4.296	4.369
Mid-American	4.628	4.643
Missouri Valley	4.423	4.539
Mountain West	5.018	4.697
Northeast	5.415	5.314
Ohio Valley	4.141	4.140
Pac-12	–	4.177
Patriot League	4.356	4.696
SWAC	5.255	5.431
Southern	3.874	4.272
Southland	4.170	4.122
Summit League	4.564	4.757
Sun Belt	4.146	3.865
WAC	4.231	4.424
West Coast	4.414	4.302

wOBA Weights

Like FIP constants, wOBA weights differ by conference and season. The table shows the SEC's, which Mississippi State's stats use; a transfer's seasons at another school use that school's conference.

Season	BB	HBP	1B	2B	3B	HR
2026	0.752	0.778	0.917	1.236	1.523	1.880
2025	0.759	0.785	0.925	1.246	1.535	1.895