JK
Diamond Index player profile
Jack Kielbania
RRandolph·Senior · P, 1B
Season2025-202644 PA · 22.7 IP
Season line
Hitting & Pitching
Hitting
PA44
HR1
R10
RBI11
SB1
AVG0.364
OBP0.364
SLG0.591
OPS0.955
Pitching
IP22.7
SO14
ERA7.72
FIP3.19
WHIP1.85
K/74.32
BB/72.78
PIT-15.3
Compared with qualified NJ players
Low Average HighPercentile Rankings
Hitting
Not qualified · minimum 50 PAwRC+
122
wOBA
0.416
OPS
0.955
ISO
0.227
AVG
0.364
OBP
0.364
SLG
0.591
BB%
0.0%
BsR
0.2
Off
1.9
Pitching
PIT
9
-15.3ERA
8
7.72FIP
46
3.19WHIP
26
1.85K/7
11
4.32BB/7
72
2.78K/BB
37
1.56ERA-
8
257Every appearance
17 gamesGame Log
Hitting
| Date | Opponent | Result | AB | R | H | RBI | 1B | 2B | 3B | HR | BB | HBP | SB | AVG | SLG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 03/28/2026 | @ Pequannock | W 11-7 | 4 | 1 | 3 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0.750 | 1.250 |
| 03/31/2026 | @ Watchung Hills | L 3-8 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.500 | 0.500 |
| 04/01/2026 | vs. Delbarton | L 1-14 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/04/2026 | @ Seton Hall Prep | L 1-12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/08/2026 | vs. Hudson Catholic | W 5-0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/09/2026 | @ Cranford | L 4-13 | 3 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.333 | 0.667 |
| 04/10/2026 | vs. Hunterdon Central | W 14-13 | 3 | 1 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.333 | 1.333 |
| 04/13/2026 | @ Roxbury | L 1-11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/17/2026 | @ Delbarton | L 0-11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/22/2026 | @ Morris Knolls | W 7-1 | 0 | 1 | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 04/24/2026 | vs. Boonton | W 27-3 | 3 | 2 | 2 | 5 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0.667 | 1.333 |
| 05/04/2026 | @ Montville | W 5-4 | 4 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.250 | 0.500 |
| 05/11/2026 | @ Pope John | W 3-0 | 4 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0.500 | 0.500 |
| 05/12/2026 | vs. Montville | L 12-13 | 4 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0.500 | 0.750 |
| 05/18/2026 | @ Mount Olive | L 7-8 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.333 | 0.333 |
| 05/19/2026 | vs. Pope John | W 11-6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| 05/20/2026 | vs. Mount Olive | L 3-8 | 2 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 03/31/2026 | @ Watchung Hills | L 3-8 | 0 | 0 | 20 | 2 | 1 | 1 | 1 | 0 | 1 | 0 | 3.50 |
| 04/06/2026 | @ Ridge | L 4-6 | 0 | 0 | 62 | 4 | 4 | 2 | 2 | 3 | 3 | 0 | 3.50 |
| 04/10/2026 | vs. Hunterdon Central | W 14-13 | 0 | 0 | 40 | 0.2 | 7 | 6 | 6 | 0 | 0 | 0 | 63.00 |
| 04/15/2026 | vs. Roxbury | L 7-9 | 0 | 1 | 67 | 4 | 6 | 6 | 6 | 3 | 4 | 1 | 10.50 |
| 04/20/2026 | vs. Morris Knolls | W 13-6 | 1 | 0 | 78 | 4 | 8 | 4 | 3 | 0 | 2 | 0 | 5.25 |
| 04/27/2026 | @ North Hunterdon | L 0-6 | 0 | 1 | 81 | 5 | 6 | 6 | 6 | 3 | 0 | 0 | 8.40 |
| 05/20/2026 | vs. Mount Olive | L 3-8 | 0 | 0 | 46 | 3 | 1 | 1 | 1 | 0 | 4 | 0 | 2.33 |