Kenley Jansen
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A player page shows one box score, because a hitter and a pitcher share almost no column — which half you get follows the one he appears in. Every rate is built from summed counts, so a batting average is hits over at bats across whatever window you picked rather than an average of nightly averages. Pitchers rank against starters or relievers, which is the split the sport itself draws. A dash means no number for that cell, or a zero in a roster column that counts.
Kenley Jansen
Pitcher2025 · Regular Season
For contextKenley Jansen comes in 284th of 288 relief pitchers in balks, at 3.
94th beats 94% of the Relief Pitchers; 1 is the best of however many the row says. Higher is always better, whichever way the stat runs. Red to green by where the placing sits. A stat with no better end is left unpainted.
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Game log62 games
| Date | Opp | IP | W | L | SV | H | HR | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 26, 2025 |  HOU | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| Sep 24, 2025 |  KC | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Sep 18, 2025 | @ MIL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Sep 11, 2025 | @ SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 1.00 |
| Sep 10, 2025 |  MIN | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Sep 7, 2025 |  ATH | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Sep 2, 2025 | @KC | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| Aug 31, 2025 | @HOU | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 30, 2025 | @HOU | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.00 | 1.00 |
| Aug 25, 2025 | @ TEX | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 22, 2025 |  CHC | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 9.00 | 1.00 |
| Aug 19, 2025 |  CIN | 1 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 18.00 | 3.00 |
| Aug 17, 2025 | @ATH | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 2 | 0.00 | 3.00 |
| Aug 13, 2025 |  LAD | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 12, 2025 | LAD | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 9.00 | 1.00 |
| Aug 11, 2025 | LAD | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Aug 9, 2025 | @ DET | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Aug 6, 2025 |  TB | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.00 |
| Aug 3, 2025 |  CWS | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0.00 | 2.00 |
| July 29, 2025 | TEX | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| July 28, 2025 | TEX | 1.1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 27, 2025 | SEA | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| July 25, 2025 | SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| July 18, 2025 | @ PHI | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| July 11, 2025 |  ARI | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| July 9, 2025 | TEX | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| July 7, 2025 | TEX | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 5, 2025 | @ TOR | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| July 4, 2025 | @TOR | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| July 1, 2025 | @ ATL | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| June 29, 2025 |  WSH | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0.00 | 2.00 |
| June 24, 2025 |  BOS | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 1.00 |
| June 23, 2025 | BOS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — |
| June 20, 2025 | HOU | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0.00 | 2.00 |
| June 18, 2025 | @ NYY | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| June 16, 2025 | @NYY | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| June 15, 2025 | @ BAL | 1 | 0 | 0 | 0 | 2 | 1 | 3 | 0 | 18.00 | 2.00 |
| June 10, 2025 | ATH | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| June 9, 2025 | ATH | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| June 7, 2025 | SEA | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 9.00 | 1.00 |
| June 6, 2025 | SEA | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| June 3, 2025 | @BOS | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0.00 | 2.00 |
| June 2, 2025 | @BOS | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| May 30, 2025 | @ CLE | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 9.00 | 3.00 |
| May 23, 2025 |  MIA | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0.00 | 2.00 |
| May 20, 2025 | @ATH | 1 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 9.00 | 2.00 |
| May 19, 2025 | @ATH | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| May 17, 2025 | @LAD | 1.1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0.00 | 0.75 |
| May 16, 2025 | @LAD | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| May 13, 2025 | @ SD | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | — | — |
| May 12, 2025 | @SD | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| May 9, 2025 | BAL | 0.2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.50 |
| May 3, 2025 | DET | 0.2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| May 2, 2025 | DET | 0.2 | 0 | 1 | 0 | 6 | 3 | 1 | 0 | 81.00 | 9.00 |
| April 24, 2025 |  PIT | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| April 18, 2025 |  SF | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| April 12, 2025 | @HOU | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| April 8, 2025 | @TB | 1 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 0.00 | 2.00 |
| April 6, 2025 | CLE | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| April 1, 2025 | @ STL | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| March 30, 2025 | @CWS | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0.00 | 2.00 |
| March 29, 2025 | @CWS | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| Season | G | GS | IP | W | L | SV | ERA | WHIP | H | HR | K | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 51 | 0 | 43.1 | 4 | 6 | 22 | 3.32 | 1.08 | 24 | 7 | 51 | 23 |
| 2025 | 62 | 0 | 59 | 5 | 4 | 29 | 2.59 | 0.95 | 37 | 8 | 57 | 19 |
| 2024 | 54 | 0 | 54.2 | 4 | 2 | 27 | 3.29 | 1.06 | 38 | 4 | 62 | 20 |
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