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Diamond Index player profile

Mason O'Brien

PPennsville·Freshman · OF, P·2024, 2025, 2026

Season2023-202497 PA · 20.0 IPCareer leaderboard →
Season line

Hitting & Pitching

Hitting

PA97
HR0
R19
RBI22
SB4
AVG0.341
OBP0.443
SLG0.366
OPS0.809

Pitching

IP20.0
SO18
ERA5.60
FIP4.30
WHIP2.20
K/76.30
BB/74.90
PIT-7.4
Compared with qualified NJ players

Percentile Rankings

Low Average High

Hitting

wRC+
56
103
wOBA
56
0.376
OPS
55
0.809
ISO
18
0.024
AVG
71
0.341
OBP
65
0.443
SLG
50
0.366
BB%
52
13.4%
BsR
43
0.8
Off
54
1.3

Pitching

PIT
24
-7.4
ERA
18
5.60
FIP
17
4.30
WHIP
10
2.20
K/7
38
6.30
BB/7
29
4.90
K/BB
27
1.29
ERA-
18
187
Year-to-year development

Hitting Trends

OPS by season1.063Latest · 2025–2026
2.0001.5001.0000.5000.000
2024, 0.8092025, 0.8342026, 1.063
202420252026
20240.80920250.83420261.063
Year-to-year development

Pitching Trends

ERA by season2.04Latest · 2025–2026
10.007.505.002.500.00
2024, 5.602025, 5.732026, 2.04
202420252026
20245.6020255.7320262.04
Every appearance

Game Log

0 games
No game log available yetIndividual game stats will appear after NJ.com publishes and the next data import runs.
Statistical neighbors

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MBMichael BaxterEgg Harbor · Sophomore · OF
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