MO
Diamond Index player profile
Mason O'Brien
PPennsville·Junior · OF, P
Season2025-202694 PA · 48.0 IP
Season line
Hitting & Pitching
Hitting
PA94
HR1
R33
RBI17
SB10
AVG0.395
OBP0.511
SLG0.553
OPS1.063
Pitching
IP48.0
SO65
ERA2.04
FIP2.20
WHIP1.31
K/79.48
BB/73.06
PIT6.6
Compared with qualified NJ players
Low Average HighPercentile Rankings
Hitting
wRC+
87
149wOBA
87
0.469OPS
86
1.063ISO
79
0.158AVG
87
0.395OBP
89
0.511SLG
84
0.553BB%
87
19.1%BsR
78
2.2Off
88
10.3Pitching
PIT
89
6.6ERA
83
2.04FIP
80
2.20WHIP
71
1.31K/7
80
9.48BB/7
67
3.06K/BB
80
3.10ERA-
83
68Every appearance
26 gamesGame Log
Hitting
| Date | Opponent | Result | AB | R | H | RBI | 1B | 2B | 3B | HR | BB | HBP | SB | AVG | SLG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 04/01/2026 | vs. Pitman | W 12-0 | 3 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0.667 | 1.000 |
| 04/02/2026 | vs. Paulsboro | W 8-3 | 3 | 1 | 2 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0.667 | 0.667 |
| 04/07/2026 | vs. Overbrook | W 4-2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/09/2026 | @ Clayton | W 16-2 | 3 | 3 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0.667 | 0.667 |
| 04/10/2026 | vs. Haddon Heights | L 3-14 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0.000 | 0.000 |
| 04/13/2026 | vs. Wildwood | W 3-2 | 4 | 1 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0.750 | 0.750 |
| 04/15/2026 | @ Penns Grove | W 15-1 | 4 | 2 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0.500 | 1.000 |
| 04/17/2026 | @ Pitman | W 9-6 | 4 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0.500 | 0.500 |
| 04/18/2026 | vs. Kingsway | L 1-16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/18/2026 | @ Deptford | L 2-5 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.500 | 0.500 |
| 04/28/2026 | vs. Millville | L 2-13 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/29/2026 | @ Woodstown | L 1-2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 05/01/2026 | @ Salem | W 17-0 | 2 | 2 | 2 | 4 | 1 | 0 | 1 | 0 | 2 | 0 | 1 | 1.000 | 2.000 |
| 05/04/2026 | vs. Salem | W 19-6 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.000 | 0.000 |
| 05/05/2026 | @ Cherry Hill West | L 4-8 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.000 | 0.000 |
| 05/06/2026 | vs. Clayton | W 12-2 | 2 | 1 | 2 | 3 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 1.000 | 1.000 |
| 05/07/2026 | @ Wildwood | W 5-3 | 3 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0.667 | 0.667 |
| 05/12/2026 | vs. Glassboro | W 4-1 | 4 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.250 | 0.500 |
| 05/13/2026 | @ Vineland | L 9-12 | 3 | 3 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0.667 | 1.000 |
| 05/14/2026 | vs. Gloucester Tech | W 7-2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0.500 | 0.500 |
| 05/16/2026 | @ Cedar Creek | L 0-11 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 05/18/2026 | vs. Penns Grove | W 28-8 | 3 | 3 | 3 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1.000 | 2.333 |
| 05/19/2026 | @ Schalick | L 3-12 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0.500 | 0.500 |
| 05/28/2026 | vs. Pitman | W 6-5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 0.000 | 0.000 |
| 05/29/2026 | @ Haddon Township | W 13-7 | 3 | 4 | 2 | 1 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0.667 | 1.000 |
| 06/03/2026 | @ Woodstown | L 3-6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
Pitching
| Date | Opponent | Result | W | L | PIT | IP | H | R | ER | BB | K | HBP | ERA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 04/01/2026 | vs. Pitman | W 12-0 | 0 | 0 | 19 | 2.1 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 |
| 04/02/2026 | vs. Paulsboro | W 8-3 | 0 | 0 | 53 | 2 | 2 | 1 | 1 | 3 | 5 | 0 | 3.50 |
| 04/07/2026 | vs. Overbrook | W 4-2 | 1 | 0 | 37 | 4 | 2 | 0 | 0 | 0 | 4 | 0 | 0.00 |
| 04/10/2026 | vs. Haddon Heights | L 3-14 | 0 | 0 | 55 | 2.2 | 2 | 1 | 1 | 2 | 3 | 0 | 2.62 |
| 04/13/2026 | vs. Wildwood | W 3-2 | 0 | 0 | 95 | 6.2 | 5 | 2 | 1 | 1 | 10 | 2 | 1.05 |
| 04/18/2026 | @ Deptford | L 2-5 | 0 | 0 | 93 | 4.2 | 6 | 5 | 2 | 3 | 4 | 2 | 3.00 |
| 04/29/2026 | @ Woodstown | L 1-2 | 0 | 0 | 16 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 |
| 05/01/2026 | @ Salem | W 17-0 | 1 | 0 | 65 | 4 | 1 | 0 | 0 | 1 | 9 | 3 | 0.00 |
| 05/05/2026 | @ Cherry Hill West | L 4-8 | 0 | 0 | 16 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0.00 |
| 05/07/2026 | @ Wildwood | W 5-3 | 1 | 0 | 99 | 6.1 | 6 | 1 | 1 | 2 | 8 | 1 | 1.11 |
| 05/14/2026 | vs. Gloucester Tech | W 7-2 | 0 | 0 | 99 | 7 | 3 | 2 | 2 | 3 | 8 | 0 | 2.00 |
| 05/19/2026 | @ Schalick | L 3-12 | 0 | 0 | 30 | 0.2 | 7 | 7 | 4 | 1 | 0 | 0 | 42.00 |
| 05/28/2026 | vs. Pitman | W 6-5 | 1 | 0 | 77 | 4.2 | 5 | 1 | 1 | 4 | 8 | 0 | 1.50 |
| 06/03/2026 | @ Woodstown | L 3-6 | 0 | 0 | 24 | 2 | 2 | 1 | 1 | 0 | 1 | 0 | 3.50 |