ROK
Caleb Nieman
P · ACL Brewers
- B/T
- R/R
- Size
- 6' 4", 225 lb
- Born
- 2005-05-04 · Fountain Valley, CA, USA
- Acquired
- —
Pitching 6.40 ERA, 1.73 WHIP for ACL Brewers. 23rd percentile in ERA among 15 Brewers Rookie pitchers.
Level path
- ROK2026ACL Brewers
Pitching
| Year | Lvl | Club | Age | Games pitched in. | Games started. | Wins. | Losses. | Saves. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Walks allowed. | Strikeouts. | Home runs allowed. | Earned run average: earned runs allowed per nine innings. | Walks plus hits allowed per inning pitched. | Strikeouts per nine innings. | Walks per nine innings. | Strikeout rate: strikeouts divided by batters faced. | Walk rate: walks divided by batters faced. | Strikeout rate minus walk rate, both as a share of batters faced. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | ROK | ACL Brewers | 21 | 11 | 3 | 2 | 1 | 0 | 32.1 | 36 | 20 | 31 | 4 | 6.40 | 1.73 | 8.63 | 5.57 | 20.0% | 12.9% | 7.1% |
Against Brewers farm peers
Pitchers vs Brewers farm players at Rookie, 2026
15 in the group. His line: 32.1 IP. ACL and DSL players share one Rookie group.
| Stat | Value | Percentile |
|---|---|---|
| Earned run average: earned runs allowed per nine innings. | 6.40 | 23 |
| Walks plus hits allowed per inning pitched. | 1.73 | 30 |
| Strikeout rate: strikeouts divided by batters faced. | 20.0% | 30 |
| Walk rate: walks divided by batters faced. | 12.9% | 50 |
Ranked among Brewers farm players with at least 30 innings, not the whole league. A high percentile is always good: ERA, WHIP and a pitcher's BB% counts lower as better.
Game log
Pitching
| Date | Opp | W/L | Lvl | Club | Games started. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Runs allowed, earned or not. | Earned runs allowed. | Walks allowed. | Strikeouts. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 13 | ACL Dodgers | L | ROK | ACL Brewers | 0 | 4.0 | 2 | 0 | 0 | 1 | 4 |
| Jul 6 | @ ACL Guardians | W | ROK | ACL Brewers | 0 | 4.1 | 6 | 3 | 3 | 1 | 6 |
| Jun 29 | ACL Cubs | W | ROK | ACL Brewers | 1 | 3.0 | 5 | 0 | 0 | 3 | 2 |
| Jun 19 | @ ACL Guardians | L | ROK | ACL Brewers | 1 | 3.0 | 4 | 4 | 3 | 1 | 0 |
| Jun 12 | @ ACL Angels | L | ROK | ACL Brewers | 0 | 2.0 | 7 | 8 | 8 | 1 | 5 |
| Jun 4 | @ ACL Guardians | W | ROK | ACL Brewers | 0 | 3.2 | 3 | 2 | 1 | 3 | 2 |
| May 28 | @ ACL Dodgers | W | ROK | ACL Brewers | 0 | 4.0 | 1 | 1 | 0 | 1 | 4 |
| May 22 | ACL White Sox | W | ROK | ACL Brewers | 0 | 3.0 | 3 | 2 | 2 | 2 | 1 |
| May 15 | ACL Guardians | L | ROK | ACL Brewers | 0 | 1.1 | 2 | 4 | 2 | 4 | 2 |
| May 9 | ACL Guardians | L | ROK | ACL Brewers | 0 | 2.0 | 3 | 4 | 4 | 3 | 2 |
| May 4 | ACL Padres | W | ROK | ACL Brewers | 1 | 2.0 | 0 | 0 | 0 | 0 | 3 |
A row is one game he played, newest first. A game he did not play has no row, so a log can have fewer rows than the G column above for the same season: a pitcher who batted once shows one hitting row. Season 2026, through Jul 13, 2026.
Major leagues
No major-league games on record.
Posts about him
None yet.
Stats from the MLB Stats API, through Oct 9, 2026.