Kenley Jansen had a 3-6 record with an ERA of 3.63, 52 strikeouts and 29 saves in 51 appearances in 2023.
| NAME | DATE | SEASON | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | K. Jansen | 9/12/2023 | 2023 | vs | 0 | 0 | 0 | 0 | 0 | 0.0 | 1 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | ||||
| 2 | | K. Jansen | 9/5/2023 | 2023 | @ | L | 0 | 0 | 0 | 0 | 0 | 0.0 | 1 | 2 | 3 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | |||
| 3 | | K. Jansen | 9/4/2023 | 2023 | @ | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 4 | | K. Jansen | 9/3/2023 | 2023 | @ | 0 | 18.00 | 1 | 0 | 0 | 0 | 1.0 | 3 | 2 | 2 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | |||
| 5 | | K. Jansen | 8/30/2023 | 2023 | vs | 0 | 0.00 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | |||
| 6 | | K. Jansen | 8/23/2023 | 2023 | @ | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||
| 7 | | K. Jansen | 8/20/2023 | 2023 | @ | 0 | 0.00 | 2 | 0 | 0 | 1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 5 | 0 | |||
| 8 | | K. Jansen | 8/15/2023 | 2023 | @ | 0 | 0.00 | 1 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 9 | | K. Jansen | 8/13/2023 | 2023 | vs | 0 | 0.00 | 0 | 0 | 0 | 1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | |||
| 10 | | K. Jansen | 8/10/2023 | 2023 | vs | 0 | 0.00 | 2 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 11 | | K. Jansen | 8/9/2023 | 2023 | vs | 0 | 9.00 | 1 | 0 | 0 | 1 | 1.0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 4 | 0 | |||
| 12 | | K. Jansen | 8/7/2023 | 2023 | vs | W | 0 | 0.00 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | ||
| 13 | | K. Jansen | 8/1/2023 | 2023 | @ | 0 | 0.00 | 1 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 14 | | K. Jansen | 7/29/2023 | 2023 | @ | L | 0 | 0 | 0 | 0 | 0 | 0.0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | |||
| 15 | | K. Jansen | 7/28/2023 | 2023 | @ | 0 | 0.00 | 2 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 16 | | K. Jansen | 7/26/2023 | 2023 | vs | 0 | 0.00 | 1 | 0 | 0 | 1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 4 | 0 | |||
| 17 | | K. Jansen | 7/22/2023 | 2023 | vs | 0 | 0.00 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | |||
| 18 | | K. Jansen | 7/19/2023 | 2023 | @ | 0 | 0.00 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 4 | 0 | |||
| 19 | | K. Jansen | 7/14/2023 | 2023 | @ | 0 | 0.00 | 1 | 0 | 0 | 1 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | |||
| 20 | | K. Jansen | 7/9/2023 | 2023 | vs | 0 | 0.00 | 1 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 0 | |||
| 21 | | K. Jansen | 7/5/2023 | 2023 | vs | 0 | 0.00 | 0 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| 22 | | K. Jansen | 7/1/2023 | 2023 | @ | 0 | 6.75 | 3 | 0 | 0 | 1 | 1.1 | 3 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | |||
| 23 | | K. Jansen | 6/29/2023 | 2023 | vs | 0 | 9.00 | 1 | 0 | 0 | 0 | 1.0 | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 5 | 0 | |||
| 24 | | K. Jansen | 6/24/2023 | 2023 | @ | L | 0 | 13.50 | 1 | 0 | 0 | 0 | 0.2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | ||
| 25 | | K. Jansen | 6/23/2023 | 2023 | @ | 0 | 0.00 | 1 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | |||
| Total | 0 | 3.63 | 52 | 0 | 0 | 29 | 44.2 | 40 | 18 | 21 | 5 | 17 | 2 | 42 | 1 | 188 | 1 | ||||||||
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 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
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| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
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| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
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 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
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| AL Central | W | L | PCT | GB |
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