Ryan Zeferjahn
Bats R Throws R6'5" 209 lbBorn 1998 Topeka, USADebut 2024Team LAADraft 2016 R37 #1110 Tampa Bay Rays, Seaman HSContract 1 y/$780,000 (26) 2026: $229,412
Projections
| Season | BF | K% | BB% | HR% | 1B% | XBH% | PITCH+ |
|---|
| 2026 | 177 | 26.0 | 10.3 | 3.05 | 20.9 | 6.25 | 103.5 |
| 2027 | | | | | | | 103.3 |
| 2028 | | | | | | | 102.7 |
Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.
Most similar through age 27
His ten closest age-27 comparables averaged 98 PITCH+ the next season; 9 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.
Pitching
| Year | Team | W | L | ERA | G | GS | SV | IP | BF | HR | BB | SO | PITCH+ |
|---|
| 2027 proj | | | | | | | | | 177 | | | | 103.3 | | |
| 2026* | | | | | | | | | 251 | | | | 103.5 | 101.5 | 105.0 |
| 2025 | LAA | 6 | 5 | 4.74 | 62 | 1 | 2 | 57.0 | 257 | 12 | 35 | 73 | 91.4 | 100.8 | 92.3 |
| 2024 | LAA | 0 | 0 | 2.12 | 12 | 0 | 0 | 17.0 | 64 | 0 | 6 | 18 | 137.9 | 103.9 | 141.8 |
| Career | | 6 | 5 | 4.14 | 74 | 1 | 2 | 74.0 | 321 | 12 | 41 | 91 | 100.7 | | 102.2 |
Fielding
| Year | Team | Pos | G | Inn | PO | A | E | DP | Fld% | Runs saved |
|---|
| 2025 | LAA | P | 62 | 57 | 5 | 6 | 0 | 0 | 1.000 | +0.3 |
| 2024 | LAA | P | 12 | 17 | 2 | 2 | 0 | 0 | 1.000 | +0.3 |
Runs saved covers the Statcast era; for catchers it includes framing.
Minor leagues
| Year | Level | Team | Side | PA / BF | Line | AVG / ERA | OPS |
|---|
| 2024 | AAA | Worcester Red Sox | Pit | 115 | 24.2 IP, 27% K | 5.58 | |
| 2024 | AAA | Salt Lake Bees | Pit | 28 | 7.2 IP, 29% K | 2.50 | |
| 2024 | AAA | nan | Pit | 143 | 32.1 IP, 27% K | 4.77 | |
| 2024 | AA | Portland Sea Dogs | Pit | 54 | 13.2 IP, 41% K | 0.00 | |
| 2023 | AA | Portland Sea Dogs | Pit | 204 | 43.0 IP, 33% K | 5.02 | |
| 2022 | AA | Portland Sea Dogs | Pit | 37 | 10.2 IP, 19% K | 0.88 | |
| 2022 | A+ | Greenville Drive | Pit | 268 | 60.2 IP, 27% K | 5.83 | |
| 2021 | A | Salem Red Sox | Pit | 194 | 41.2 IP, 21% K | 6.99 | |
| 2021 | Rk | FCL Red Sox | Pit | 56 | 14.0 IP, 32% K | 3.21 | |
Splits
| Year | vs LHP | vs RHP | Home | Away |
|---|
| 2026 | 0.339 | 0.269 | 0.319 | 0.281 |
| 2025 | 0.338 | 0.347 | 0.278 | 0.411 |
| 2024 | 0.130 | 0.214 | 0.125 | 0.219 |
wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.