Ryan Zeferjahn | Chicago Cubs
MLB Player
Ryan Zeferjahn
Height6' 5"Weight209 lbsAge28Experience3rd Season
7SVTied-40th
3.88ERA
94KTied-139th
1.28WHIP
Player Information
PositionRelief Pitcher
Jersey#56
Date of Birth28/2/1998
BirthplaceTopeka, KS
Experience3rd Season
Bats / ThrowsRight/Right
MLB Debut2024
StatusActive
Next Game
More Chicago Cubs Players
Season, Postseason & Career
| Split | GP | GS | CG | SHO | IP | H | R | ER | HR | BB | K |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular Season | 65 | 0 | 0 | 0 | 69.2 | 49 | 33 | 30 | 7 | 40 | 94 |
| Postseason | 1 | 0 | 0 | 0 | 1.1 | 1 | 0 | 0 | 0 | 1 | 2 |
| Career | 139 | 1 | 0 | 0 | 143.2 | 105 | 68 | 64 | 19 | 81 | 185 |
Pitching by Season
| Season | GP | GS | W | L | W% | WAR | ERA | WHIP | IP | K | BB | K/BB | H | R | ER | SV | HLD | BLSV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 12 | 0 | 0 | 0 | .000 | 0.5 | 2.12 | 0.76 | 17.0 | 18 | 6 | 3.0 | 7 | 4 | 4 | 0 | 0 | 0 |
| 2025 | 62 | 1 | 6 | 5 | .545 | 0.6 | 4.74 | 1.47 | 57.0 | 73 | 35 | 2.1 | 49 | 31 | 30 | 2 | 17 | 6 |
| 2026 | 45 | 0 | 4 | 3 | .571 | 0.7 | 3.66 | 1.20 | 51.2 | 75 | 32 | 2.3 | 30 | 23 | 21 | 4 | 9 | 2 |
| 2026 | 20 | 0 | 0 | 1 | .000 | 0.0 | 4.50 | 1.50 | 18.0 | 19 | 8 | 2.4 | 19 | 10 | 9 | 3 | 5 | 2 |
| 2026 | 65 | 0 | 4 | 4 | .500 | 0.7 | 3.88 | 1.28 | 69.2 | 94 | 40 | 2.4 | 49 | 33 | 30 | 7 | 14 | 4 |
| Career | 139 | 1 | 10 | 9 | .526 | -- | 4.01 | 1.29 | 143.2 | 185 | 81 | 2.3 | 105 | 68 | 64 | 9 | 31 | 10 |
Postseason Pitching by Season
| Season | GP | GS | W | L | W% | WAR | ERA | WHIP | IP | K | BB | K/BB | H | R | ER | SV | HLD | BLSV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 0 | 0 | 0 | .000 | 0.0 | 0.00 | 1.50 | 1.1 | 2 | 1 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Career | 1 | 0 | 0 | 0 | .000 | 0.0 | 0.00 | 1.50 | 1.1 | 2 | 1 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 |
Opponent Batting by Season
| Season | P | TBF | P-TBF | OBA | OOBP | OSLUG | OOPS | 2B | 3B | HR | TB | RBI | BH | SH | SF | IBB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 208 | 64 | 3.250 | .127 | .234 | .145 | .380 | 1 | 0 | 0 | 8 | 4 | 2 | 0 | 1 | 1 |
| 2025 | 1029 | 257 | 4.004 | .227 | .344 | .431 | .774 | 8 | 0 | 12 | 93 | 35 | 4 | 1 | 1 | 3 |
| 2026 | 959 | 224 | 4.281 | .165 | .314 | .291 | .605 | 6 | 1 | 5 | 53 | 17 | 8 | 0 | 1 | 3 |
| 2026 | 320 | 80 | 4.000 | .275 | .354 | .406 | .760 | 3 | 0 | 2 | 28 | 13 | 1 | 1 | 1 | 2 |
| 2026 | 1279 | 304 | 4.207 | .195 | .325 | .323 | .647 | 9 | 1 | 7 | 81 | 30 | 9 | 1 | 2 | 5 |
| Career | 2516 | 625 | 4.026 | .201 | .323 | .349 | .672 | 18 | 1 | 19 | 182 | 69 | 15 | 2 | 4 | 9 |
Expanded Pitching by Season
| Season | P/S | P/I | K/9 | QS | CG | SHO | GSC | GB | FB | G/F | IR | IRS | WP | BK | SB | CS | RSUP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 0.0 | 12.2 | 9.5 | 0 | 0 | 0 | 0.0 | 15 | 23 | 0.7 | 6 | 1 | 0 | 0 | 0 | 0 | 0.0 |
| 2025 | 17.0 | 18.1 | 11.5 | 0 | 0 | 0 | 49.0 | 54 | 91 | 0.6 | 20 | 7 | 3 | 0 | 7 | 0 | 6.0 |
| 2026 | 0.0 | 18.6 | 13.1 | 0 | 0 | 0 | 0.0 | 45 | 63 | 0.7 | 14 | 2 | 1 | 0 | 10 | 0 | 0.0 |
| 2026 | 0.0 | 17.8 | 9.5 | 0 | 0 | 0 | 0.0 | 27 | 25 | 1.1 | 11 | 5 | 3 | 0 | 3 | 0 | 0.0 |
| 2026 | 0.0 | 18.4 | 12.1 | 0 | 0 | 0 | 0.0 | 72 | 88 | 0.8 | 25 | 7 | 4 | 0 | 13 | 0 | 0.0 |
| Career | 17.0 | 17.5 | 11.6 | 0 | 0 | 0 | 0.0 | 141 | 202 | 0.7 | 51 | 15 | 7 | 0 | 20 | 0 | 6.0 |
Game Log
| Game | Result | IP | H | R | ER | HR | BB | K | GB | FB | P | TBF | GSC | Dec | Rel | ERA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 @ SD2026 Postseason | L 4-1 | 1.1 | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 30 | 6 | 0.0 | - | - | 0.00 |
 vs MIA2026 Regular Season | W 2-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 9 | 3 | 0.0 | - | SV(7) | 3.88 |
| vs MIA2026 Regular Season | L 8-2 F/12 | 0.2 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 13 | 4 | 0.0 | - | - | 3.93 |
 @ CIN2026 Regular Season | W 5-2 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 24 | 4 | 0.0 | - | HLD(14) | 3.97 |
 vs ATL2026 Regular Season | W 8-4 | 1.0 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 20 | 4 | 0.0 | - | - | 4.03 |
| vs ATL2026 Regular Season | W 7-3 | 1.0 | 2 | 0 | 0 | 0 | 1 | 1 | 3 | 0 | 24 | 5 | 0.0 | - | - | 4.09 |
 vs PIT2026 Regular Season | W 4-3 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 6 | 1 | 0.0 | - | SV(6) | 4.15 |
 @ MIL2026 Regular Season | L 4-3 | 0.1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 14 | 3 | 0.0 | - | BLSV(4) | 4.18 |
| @ MIA2026 Regular Season | W 6-5 | 1.2 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 1 | 19 | 6 | 0.0 | - | SV(5) | 4.06 |
| vs MIL2026 Regular Season | W 2-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 10 | 3 | 0.0 | - | HLD(13) | 4.16 |
| vs MIL2026 Regular Season | L 9-4 | 0.2 | 2 | 2 | 2 | 0 | 0 | 1 | 1 | 2 | 17 | 4 | 0.0 | - | - | 4.23 |
| vs CIN2026 Regular Season | W 17-5 | 1.1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 19 | 4 | 0.0 | - | - | 3.98 |
 @ ARI2026 Regular Season | L 2-0 | 1.0 | 2 | 1 | 1 | 0 | 0 | 0 | 2 | 2 | 7 | 4 | 0.0 | - | - | 4.07 |
| @ ARI2026 Regular Season | W 7-0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 10 | 3 | 0.0 | - | - | 3.99 |
 @ SEA2026 Regular Season | L 6-5 F/10 | 0.2 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 7 | 4 | 0.0 | L(4-4) | - | 4.06 |
 vs CHW2026 Regular Season | W 7-5 F/10 | 1.0 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 4 | 24 | 6 | 0.0 | - | BLSV(3) | 4.11 |
 vs STL2026 Regular Season | W 3-0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 1 | 27 | 5 | 0.0 | - | HLD(12) | 3.86 |
 @ WSH2026 Regular Season | W 8-6 | 0.2 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 5 | 23 | 6 | 0.0 | - | - | 3.93 |
 @ KC2026 Regular Season | W 10-2 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 24 | 4 | 0.0 | - | - | 3.64 |
 vs LAD2026 Regular Season | W 7-6 | 0.2 | 1 | 1 | 1 | 1 | 0 | 2 | 0 | 1 | 14 | 4 | 0.0 | - | HLD(11) | 3.71 |
| vs LAD2026 Regular Season | W 5-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 9 | 3 | 0.0 | - | HLD(10) | 3.59 |
| vs MIL2026 Regular Season | W 3-0 | 1.2 | 2 | 0 | 0 | 0 | 0 | 4 | 1 | 2 | 30 | 7 | 0.0 | - | SV(4) | 3.66 |
 vs HOU2026 Regular Season | L 6-4 | 1.0 | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 3 | 23 | 5 | 0.0 | - | HLD(9) | 3.78 |
 @ SF2026 Regular Season | W 4-3 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 10 | 4 | 0.0 | - | HLD(8) | 3.67 |
| @ SF2026 Regular Season | L 7-6 F/10 | 1.0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 21 | 4 | 0.0 | - | - | 3.75 |
| vs STL2026 Regular Season | W 5-1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 20 | 5 | 0.0 | - | - | 3.83 |
 vs DET2026 Regular Season | W 3-2 | 1.0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 4 | 15 | 4 | 0.0 | - | SV(3) | 3.91 |
| vs DET2026 Regular Season | L 2-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 12 | 3 | 0.0 | - | HLD(7) | 3.80 |
 @ MIN2026 Regular Season | L 4-2 | 1.1 | 1 | 1 | 1 | 1 | 0 | 2 | 1 | 2 | 27 | 5 | 0.0 | - | - | 3.89 |
 @ TEX2026 Regular Season | L 7-6 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 17 | 3 | 0.0 | - | - | 3.80 |
| @ TEX2026 Regular SeasonWeek 27 | W 13-1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 17 | 4 | 0.0 | - | - | 3.89 |
 vs BOS2026 Regular SeasonWeek 27 | L 8-1 | 1.1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 24 | 6 | 0.0 | - | - | 3.98 |
| @ SEA2026 Regular SeasonWeek 26 | L 8-3 | 1.0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 12 | 3 | 0.0 | - | - | 4.12 |
 vs ATH2026 Regular SeasonWeek 26 | W 4-1 | 0.2 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 19 | 4 | 0.0 | - | HLD(6) | 4.23 |
| vs ATH2026 Regular SeasonWeek 26 | W 5-2 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 16 | 3 | 0.0 | W(4-3) | - | 4.30 |
 vs BAL2026 Regular SeasonWeek 25 | W 5-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 16 | 3 | 0.0 | - | - | 4.42 |
| @ ATH2026 Regular SeasonWeek 25 | W 7-0 | 1.2 | 0 | 0 | 0 | 0 | 1 | 3 | 1 | 1 | 24 | 6 | 0.0 | - | - | 4.54 |
| @ ATH2026 Regular SeasonWeek 25 | L 5-0 | 1.0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 2 | 21 | 5 | 0.0 | - | - | 4.76 |
 vs TB2026 Regular SeasonWeek 24 | L 8-3 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 10 | 3 | 0.0 | - | - | 4.91 |
| vs TB2026 Regular SeasonWeek 24 | W 4-3 | 0.1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 9 | 2 | 0.0 | - | SV(2) | 5.06 |
| vs HOU2026 Regular SeasonWeek 23 | W 3-2 F/10 | 1.0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 21 | 4 | 0.0 | W(3-3) | - | 5.12 |
| vs HOU2026 Regular SeasonWeek 23 | L 5-4 F/10 | 1.0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 25 | 5 | 0.0 | - | - | 5.28 |
| @ LAD2026 Regular SeasonWeek 23 | L 9-2 | 2.0 | 0 | 0 | 0 | 0 | 2 | 3 | 1 | 2 | 34 | 8 | 0.0 | - | - | 5.46 |
 vs COL2026 Regular SeasonWeek 22 | W 11-4 | 1.0 | 2 | 1 | 1 | 0 | 0 | 0 | 2 | 3 | 24 | 5 | 0.0 | - | - | 5.86 |
| vs COL2026 Regular SeasonWeek 22 | L 9-8 | 1.0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 16 | 4 | 0.0 | - | HLD(5) | 5.74 |
| @ TB2026 Regular SeasonWeek 22 | L 8-5 | 0.1 | 3 | 4 | 4 | 2 | 1 | 0 | 2 | 2 | 19 | 5 | 0.0 | L(2-3) | BLSV(2) | 5.96 |
| @ DET2026 Regular SeasonWeek 22 | W 7-1 | 1.0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 1 | 22 | 5 | 0.0 | - | - | 4.62 |
| vs TEX2026 Regular SeasonWeek 21 | W 5-2 | 1.0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 2 | 15 | 4 | 0.0 | - | HLD(4) | 4.81 |
| vs ATH2026 Regular SeasonWeek 21 | L 3-2 F/10 | 1.0 | 0 | 1 | 0 | 0 | 2 | 0 | 3 | 0 | 19 | 6 | 0.0 | L(2-2) | - | 4.63 |
| vs ATH2026 Regular SeasonWeek 20 | L 6-5 F/10 | 0.1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 11 | 3 | 0.0 | - | HLD(3) | 4.84 |
| vs ATH2026 Regular SeasonWeek 20 | W 2-1 | 0.1 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 3 | 24 | 5 | 0.0 | - | - | 4.50 |
 @ CLE2026 Regular SeasonWeek 19 | L 4-2 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 19 | 4 | 0.0 | - | - | 4.15 |
 @ TOR2026 Regular SeasonWeek 19 | W 6-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 15 | 3 | 0.0 | - | - | 4.35 |
| vs CHW2026 Regular SeasonWeek 18 | W 4-3 | 1.1 | 0 | 0 | 0 | 0 | 2 | 3 | 1 | 0 | 33 | 7 | 0.0 | - | SV(1) | 4.58 |
 vs NYM2026 Regular SeasonWeek 18 | W 4-3 F/10 | 2.0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 23 | 7 | 0.0 | W(2-1) | - | 4.91 |
| @ CHW2026 Regular SeasonWeek 17 | L 3-2 F/10 | 2.0 | 1 | 1 | 1 | 0 | 0 | 4 | 1 | 2 | 36 | 8 | 0.0 | - | BLSV(1) | 5.51 |
| @ KC2026 Regular SeasonWeek 17 | L 11-9 F/10 | 1.2 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 1 | 20 | 6 | 0.0 | - | HLD(2) | 5.65 |
| @ KC2026 Regular SeasonWeek 17 | L 6-3 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 13 | 3 | 0.0 | - | - | 6.39 |
| vs TOR2026 Regular SeasonWeek 16 | W 7-3 | 1.1 | 1 | 2 | 2 | 0 | 1 | 1 | 0 | 4 | 21 | 6 | 0.0 | - | HLD(1) | 6.94 |
| vs SD2026 Regular SeasonWeek 16 | L 4-1 | 1.0 | 3 | 2 | 2 | 0 | 2 | 0 | 3 | 2 | 23 | 7 | 0.0 | L(1-1) | - | 6.10 |
 @ NYY2026 Regular SeasonWeek 15 | W 7-1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 27 | 4 | 0.0 | - | - | 4.82 |
| @ CIN2026 Regular SeasonWeek 15 | L 7-3 | 2.0 | 2 | 1 | 1 | 0 | 0 | 1 | 4 | 3 | 43 | 8 | 0.0 | - | - | 5.40 |
| vs ATL2026 Regular SeasonWeek 14 | L 8-2 | 1.2 | 2 | 2 | 2 | 0 | 2 | 2 | 2 | 3 | 42 | 9 | 0.0 | - | - | 5.68 |
| vs SEA2026 Regular SeasonWeek 14 | W 8-7 F/11 | 2.0 | 0 | 2 | 2 | 0 | 1 | 5 | 1 | 0 | 27 | 8 | 0.0 | - | - | 3.86 |
 @ CHC2026 Regular SeasonWeek 13 | L 6-2 | 0.2 | 1 | 1 | 0 | 0 | 1 | 1 | 2 | 1 | 21 | 5 | 0.0 | - | - | 0.00 |
| @ HOU2026 Regular SeasonWeek 13 | W 6-2 | 2.0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 | 23 | 6 | 0.0 | W(1-0) | - | 0.00 |