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.
Mason Barnett Bowman Card Prices & Value
Track Bowman 1st Chrome autograph and rookie card values for this 25-year-old OAK RHP: raw and PSA 10 graded price trends, recent sales, and market data. Current season: ERA 7.02, WHIP 1.66.
Market data
Price history, recent sales, active listings and parallel pricing for Mason Barnett are part of Premium. Already a member? Sign in.
Stats
| Year | Level | ERA | WHIP | K | IP | W-L | GP | SV | BB |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | AAA | 5.16 | 1.57 | 50 | 66.1 | 4-3 | 14 | 0 | 36 |
| 2026 | MLB | 7.02 | 1.66 | 50 | 50.0 | 1-4 | 20 | 2 | 30 |
| 2025 | AAA | 6.13 | - | 124 | 119.0 | 6-2 | 25 | 0 | 65 |
| 2025 | MLB | 6.85 | - | 18 | 22.1 | 1-1 | 5 | 0 | 11 |
| 2024 | AA | 4.91 | 1.36 | 109 | 91.2 | 5-6 | 19 | 0 | 36 |
| 2023 | A+ | 3.18 | 1.18 | 94 | 82.0 | 4-6 | 16 | 0 | 38 |
| 2023 | AA | 3.58 | 1.19 | 43 | 32.2 | 2-1 | 7 | 0 | 12 |
Mason Barnett: Common Questions
Does Mason Barnett have a 1st Bowman autograph, and which set is it in?
Yes. Mason Barnett's first Bowman autograph is in 2022 Bowman Draft, card CDA-MB. Until an MLB debut, that 1st auto is the closest thing to a Mason Barnett rookie card.
What are Mason Barnett's position, team, and age?
Mason Barnett is a RHP in the OAK organization, currently 25 years old. This season's line: ERA 7.02, WHIP 1.66.
How is Mason Barnett ranked among MLB prospects?
Mason Barnett is not currently inside our ranked prospect list.
How often does Mason Barnett's Bowman auto grade a PSA 10?
Across graded copies, Mason Barnett's base Bowman autograph hits a PSA 10 roughly 80% of the time (10 graded so far).
What is Mason Barnett'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 Mason Barnett update daily on this page for HobbyMonitor members.