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Ryan Zeferjahn
RP · 
Chicago Cubs · #56
Bats/ThrowsR/R
Height6' 5"
Weight209 lbs
BirthplaceTopeka, KS
MLB Debut2023
🪪Bio
Bats/ThrowsR/R
Height6' 5"
Weight209 lbs
BirthplaceTopeka, KS
MLB Debut2023
📊Season Stats (2026)
ERA4.18
W-L4-4
IP64.2
K88
WHIP1.27
SV5
Full Stat Line
G59
GS0
QS0
HLD13
H44
ER30
HR7
BB38
K/912.25
WAR0.27
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.230
OBP.352
SLG.448
OPS.801
vs Right-Handed Batters
AVG.151
OBP.278
SLG.236
OPS.514
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. OAK
|
3.00 | 6.0 | 8 | 9 | .100 |
vs. HOU
|
1.80 | 5.0 | 9 | 3 | .118 |
vs. CHW
|
6.23 | 4.1 | 8 | 3 | .188 |
vs. KC
|
0.00 | 3.2 | 5 | 1 | .091 |
vs. LAD
|
2.45 | 3.2 | 5 | 2 | .083 |
vs. MIL
|
7.36 | 3.2 | 7 | 1 | .313 |
vs. SEA
|
4.91 | 3.2 | 6 | 2 | .182 |
vs. CIN
|
2.70 | 3.1 | 3 | 0 | .167 |
vs. DET
|
3.00 | 3.0 | 3 | 2 | .100 |
vs. TEX
|
3.00 | 3.0 | 4 | 0 | .182 |
vs. TOR
|
7.71 | 2.1 | 3 | 1 | .125 |
vs. ARI
|
4.50 | 2.0 | 0 | 0 | .333 |
vs. COL
|
4.50 | 2.0 | 1 | 1 | .250 |
vs. NYM
|
0.00 | 2.0 | 1 | 1 | .000 |
vs. SF
|
0.00 | 2.0 | 3 | 1 | .143 |
vs. STL
|
0.00 | 2.0 | 5 | 1 | .250 |
vs. ATL
|
10.80 | 1.2 | 2 | 2 | .286 |
vs. MIA
|
0.00 | 1.2 | 1 | 1 | .000 |
vs. TB
|
21.60 | 1.2 | 2 | 2 | .375 |
vs. BOS
|
0.00 | 1.1 | 2 | 1 | .000 |
vs. MIN
|
6.75 | 1.1 | 2 | 0 | .200 |
vs. BAL
|
0.00 | 1.0 | 3 | 0 | .000 |
vs. CLE
|
0.00 | 1.0 | 2 | 0 | .250 |
vs. NYY
|
0.00 | 1.0 | 2 | 0 | .250 |
vs. SD
|
18.00 | 1.0 | 0 | 2 | .600 |
|
vs. CHC
|
0.00 | 0.2 | 1 | 1 | .250 |
vs. WSH
|
27.00 | 0.2 | 0 | 1 | .600 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 4.18 | 64.2 | 88 | 38 | .190 |
| Angel Stadium | 4.67 | 27.0 | 41 | 21 | .177 |
| Wrigley Field | 6.14 | 7.1 | 10 | 3 | .233 |
| Kauffman Stadium | 0.00 | 3.2 | 5 | 1 | .091 |
| AT&T Park | 0.00 | 2.0 | 3 | 1 | .143 |
| Chase Field | 4.50 | 2.0 | 0 | 0 | .333 |
| Dodger Stadium | 0.00 | 2.0 | 3 | 2 | .000 |
| Great American | 4.50 | 2.0 | 1 | 0 | .250 |
| Minute Maid Park | 0.00 | 2.0 | 2 | 0 | .000 |
| U.S. Cellular Field | 4.50 | 2.0 | 4 | 0 | .143 |
| Marlins Park | 0.00 | 1.2 | 1 | 1 | .000 |
| Safeco Field | 0.00 | 1.2 | 1 | 1 | .400 |
| Target Field | 6.75 | 1.1 | 2 | 0 | .200 |
| Comerica Park | 0.00 | 1.0 | 1 | 2 | .000 |
| Progressive Field | 0.00 | 1.0 | 2 | 0 | .250 |
| Rogers Centre | 0.00 | 1.0 | 2 | 0 | .000 |
| Yankee Stadium | 0.00 | 1.0 | 2 | 0 | .250 |
| Nationals Park | 27.00 | 0.2 | 0 | 1 | .600 |
| Tropicana Field | 108.00 | 0.1 | 0 | 1 | .750 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 3.00 | 3.0 | 3 | 2 | .100 |
| Last 15 Days | 6.00 | 6.0 | 6 | 2 | .238 |
| Last 30 Days | 6.97 | 10.1 | 9 | 6 | .300 |
| March | 0.00 | 2.0 | 2 | 0 | .000 |
| April | 6.28 | 14.1 | 19 | 8 | .208 |
| May | 6.75 | 9.1 | 10 | 10 | .206 |
| June | 0.66 | 13.2 | 23 | 12 | .070 |
| July | 2.53 | 10.2 | 17 | 2 | .179 |
| August | 4.91 | 11.0 | 13 | 4 | .302 |
| September | 7.36 | 3.2 | 4 | 2 | .214 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| Sweeper | 446 | 38.7% | 35.2% | 30.9% | 34.5% | .147 | .288 | .264 |
| 4-Seam Fastball | 386 | 33.5% | 31.6% | 36.5% | 37.4% | .185 | .285 | .281 |
| Sinker | 182 | 15.8% | 29.1% | 30.9% | 7.1% | .250 | .252 | .306 |
| Slider | 131 | 11.4% | 25.2% | 38.2% | 29.4% | .233 | .256 | .310 |
| Curveball | 6 | 0.5% | 16.7% | 66.7% | 0.0% | 1.000 | .900 | .514 |
| Unknown | 1 | 0.1% | 0.0% | — | — | — | — | — |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| Sweeper | 283 | 85.4 | 2,674 | +4.6" | -1.3" | 6.7 |
| 4-Seam Fastball | 212 | 97.3 | 2,251 | +15.0" | +0.2" | 6.8 |
| Sinker | 116 | 96.4 | 2,077 | +8.0" | +1.2" | 6.8 |
| Slider | 67 | 88.4 | 2,537 | -0.9" | -0.6" | 6.7 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Monday, September 7, 2026 |
MIL
|
3-4 | 0.1 | 1 | 1 | 1 | 1 | 4.18 | 14 | — |
| W | Saturday, September 5, 2026 |
MIA
|
6-5 | 1.2 | 0 | 0 | 1 | 1 | 4.06 | 19 | S |
| W | Thursday, September 3, 2026 |
MIL
|
1-2 | 1.0 | 0 | 0 | 0 | 1 | 4.16 | 10 | — |
| L | Tuesday, September 1, 2026 |
MIL
|
9-4 | 0.2 | 2 | 2 | 0 | 1 | 4.23 | 17 | — |
| W | Saturday, August 29, 2026 |
CIN
|
5-17 | 1.1 | 0 | 0 | 0 | 2 | 3.98 | 19 | — |
| L | Wednesday, August 26, 2026 |
ARI
|
0-2 | 1.0 | 2 | 1 | 0 | 0 | 4.07 | 7 | — |
| W | Monday, August 24, 2026 |
ARI
|
7-0 | 1.0 | 0 | 0 | 0 | 0 | 3.99 | 10 | — |
| L | Friday, August 21, 2026 |
SEA
|
5-6 | 0.2 | 1 | 0 | 1 | 0 | 4.06 | 7 | L |
| W | Monday, August 17, 2026 |
CHW
|
5-7 | 1.0 | 2 | 2 | 1 | 1 | 4.11 | 24 | — |
| W | Friday, August 14, 2026 |
STL
|
0-3 | 1.0 | 1 | 0 | 1 | 2 | 3.86 | 27 | — |
👥Team — Chicago Cubs
| Player | Pos | Key Stat |
|---|---|---|
| Michael Busch | 1B | .235 AVG |
| Nico Hoerner | 2B | .266 AVG |
| Owen Miller | 2B | — |
| Pedro Ramirez | 2B | .260 AVG |
| James Triantos | 2B | .125 AVG |
| Gabriel Arias | 3B | .245 AVG |
| Alex Bregman | 3B | .260 AVG |
| B.J. Murray Jr. | 3B | .100 AVG |
| Miguel Amaya | C | .234 AVG |
| Carson Kelly | C | 6.00 ERA |
| Pete Crow-Armstrong | CF | .281 AVG |
| Justin Dean | CF | .375 AVG |
| Kevin Alcantara | DH | .240 AVG |
| Michael Conforto | DH | .242 AVG |
| Ian Happ | LF | .219 AVG |
| Tyrone Taylor | LF | .284 AVG |
| Ethan Roberts | Relief Pitcher | 4.21 ERA |
| Matt Shaw | RF | .237 AVG |
| Seiya Suzuki | RF | .267 AVG |
| Javier Assad | RP | 3.58 ERA |
| Tyler Ferguson | RP | 5.30 ERA |
| Gavin Hollowell | RP | 2.51 ERA |
| Riley Martin | RP | 2.16 ERA |
| Daniel Palencia | RP | 4.70 ERA |
| Drew Pomeranz | RP | 5.59 ERA |
| Ryan Rolison | RP | 2.84 ERA |
| Caleb Thielbar | RP | 4.89 ERA |
| Trent Thornton | RP | 3.42 ERA |
| Jacob Webb | RP | 3.36 ERA |
| Jake Woodford | RP | 7.18 ERA |
| Scott Kingery | Shortstop | 36.00 ERA |
| Matthew Boyd | SP | 4.03 ERA |
| Edward Cabrera | SP | 5.68 ERA |
| Aaron Civale | SP | 4.28 ERA |
| Braxton Garrett | SP | 14.54 ERA |
| Kevin Gausman | SP | 4.60 ERA |
| Clay Holmes | SP | 2.83 ERA |
| Shota Imanaga | SP | 3.91 ERA |
| David Peterson | SP | 5.28 ERA |
| Colin Rea | SP | 4.47 ERA |
| Dansby Swanson | SS | .216 AVG |
| Ben Brown | Starting Pitcher | 1.85 ERA |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Ryan Zeferjahn and every MLB game — available in the BlowOutAlert workspace.