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Prospects
Ryan ZeferjahnRyan Zeferjahn
Bowman 1st2019 Bowman Draft #CDA-RZ
Alumni

Ryan Zeferjahn

Los Angeles AngelsLos Angeles AngelsLAARHPAge 28 (born Feb 28, 1998)
MLB debut Aug 25, 2024Gem 66%(29)
Raw 1st auto
PSA 10
Perf+
Alumni

This player is no longer an active prospect. They have either graduated to the majors or moved out of the prospect pipeline. Their Bowman cards are still tracked.

Ryan Zeferjahn Bowman Card Prices & Value

Track Bowman 1st Chrome autograph and rookie card values for this 28-year-old LAA RHP: raw and PSA 10 graded price trends, recent sales, and market data. Current season: ERA 3.88, WHIP 1.28.

Market data

Price history, recent sales, active listings and parallel pricing for Ryan Zeferjahn are part of Premium. Already a member? Sign in.

Stats

Pitching
YearLevelERAWHIPKIPW-LGPSVBB
2026MLB3.881.289469.24-465740
2025MLB4.74-7357.06-562235

Ryan Zeferjahn: Common Questions

Does Ryan Zeferjahn have a 1st Bowman autograph, and which set is it in?

Yes. Ryan Zeferjahn's first Bowman autograph is in 2019 Bowman Draft, card CDA-RZ. Until an MLB debut, that 1st auto is the closest thing to a Ryan Zeferjahn rookie card.

What are Ryan Zeferjahn's position, team, and age?

Ryan Zeferjahn is a RHP in the LAA organization, currently 28 years old. This season's line: ERA 3.88, WHIP 1.28.

How is Ryan Zeferjahn ranked among MLB prospects?

Ryan Zeferjahn is not currently inside our ranked prospect list.

How often does Ryan Zeferjahn's Bowman auto grade a PSA 10?

Across graded copies, Ryan Zeferjahn's base Bowman autograph hits a PSA 10 roughly 66% of the time (29 graded so far).

What is Ryan Zeferjahn's 1st Bowman auto worth, and where can I track the price?

Raw and PSA 10 sale prices, price history, and the HobbyMonitor value score for Ryan Zeferjahn update daily on this page for HobbyMonitor members.