Reference

Stat benchmarks, definitions, and a glossary for the modern game.

Stat Benchmarks

Traditional Stats

Stat	Poor	Below Avg	Average	Above Avg	Excellent
AVG	.220	.240	.260	.280	.300+
OBP	.290	.310	.330	.360	.390+
SLG	.350	.390	.430	.480	.530+
OPS	.650	.700	.750	.830	.900+
ERA	5.00+	4.50	4.00	3.50	3.00
WHIP	1.45+	1.35	1.25	1.15	1.05
WAR (pos.)	0–1	1–2	2–3	3–5	5+
WAR (SP)	0–1	1–2	2–3	3–5	5+

Adjusted / Sabermetric

Stat	Poor	Below Avg	Average	Above Avg	Excellent
OPS+	75	90	100	115	140+
wRC+	75	90	100	115	140+
ERA+	75	90	100	115	140+
FIP	4.50+	4.00	3.80	3.40	3.00
xFIP	4.50+	4.00	3.80	3.40	3.00
fWAR	0–1	1–2	2–3	3–5	6+
bWAR	0–1	1–2	2–3	3–5	6+

Statcast \u2014 Batting

Stat	Poor	Below Avg	Average	Above Avg	Elite
Exit Velo (mph)	< 86	86–88	88–90	90–92	92+
Launch Angle (°)	< 8	8–12	12–18	18–25	Varies
Barrel%	< 4%	4–6%	6–8%	8–12%	12%+
Hard Hit%	< 30%	30–35%	35–40%	40–45%	45%+
xBA	.220	.240	.260	.280	.300+
xSLG	.350	.390	.430	.480	.530+
xwOBA	.290	.310	.330	.360	.390+
Sprint Speed (ft/s)	< 26	26–27	27–28	28–29	29+

Statcast \u2014 Pitching

Stat	Poor	Below Avg	Average	Above Avg	Elite
Whiff%	< 20%	20–24%	24–28%	28–32%	32%+
Chase%	< 25%	25–28%	28–31%	31–35%	35%+
K%	< 18%	18–22%	22–26%	26–30%	30%+
BB%	12%+	10–12%	8–10%	6–8%	< 6%
CSW%	< 26%	26–28%	28–30%	30–33%	33%+
xERA	4.50+	4.00	3.70	3.30	3.00
xBA Against	.270+	.250	.240	.220	.200
Avg Spin (FF, rpm)	< 2100	2100–2200	2200–2350	2350–2500	2500+

Key Definitions

AVG (Batting Average)

Hits divided by at-bats. Measures how often a batter gets a hit.

OBP (On-Base Percentage)

Times reached base (H + BB + HBP) divided by plate appearances. Includes walks and hit-by-pitches unlike AVG.

SLG (Slugging Percentage)

Total bases divided by at-bats. Weights extra-base hits more heavily than singles.

OPS (On-Base Plus Slugging)

OBP + SLG. A quick composite measure of a hitter's overall offensive value.

OPS+ / ERA+ (Adjusted Stats)

Park- and league-adjusted versions of OPS and ERA. 100 is league average; each point above/below is one percent better/worse.

wRC+ (Weighted Runs Created Plus)

Park- and league-adjusted measure of total offensive value. 100 is league average. Considered the best single-number hitting stat.

WAR (Wins Above Replacement)

Estimates a player's total value in wins compared to a freely available replacement-level player. Combines hitting, fielding, and baserunning (or pitching).

FIP (Fielding Independent Pitching)

Estimates a pitcher's ERA based only on strikeouts, walks, hit batters, and home runs — removing defense and luck on balls in play.

xBA / xSLG / xwOBA (Expected Stats)

Statcast metrics that estimate what a batted ball outcome *should* have been based on exit velocity and launch angle, removing fielding and luck.

Barrel%

Percentage of batted balls with the ideal combination of exit velocity (98+ mph) and launch angle (26–30° at 98 mph, wider range at higher velos). Barrels correlate with a .500+ batting average and 1.500+ slugging.

Hard Hit%

Percentage of batted balls with an exit velocity of 95+ mph.

Whiff%

Swings and misses divided by total swings. Measures a pitcher's ability to generate whiffs.

Chase%

Percentage of pitches outside the strike zone that the batter swings at. Higher is better for pitchers.

CSW% (Called Strike + Whiff %)

Percentage of pitches that are either called strikes or swinging strikes. A combined measure of pitch-level effectiveness.

Sprint Speed

A player's top speed in feet per second, measured by Statcast on competitive running plays. League average is ~27 ft/s.

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