
#18 RP · Mariners
Height
6'6"
Weight
200 lbs
Age
29
College
North Carolina
Experience
5 yrs
Bats/Throws
R/R
Grade Cooper Criswell
Your grade joins the crowd-sourced Fan Verdict.
On the field, Cooper Criswell grades out as a shaky RP for Mariners (D+ Performance). That places him 332nd of 389 graded relief pitchers. The public read is negative (D Sentiment), drawn from current news and social signal rather than the box score.
| Year | Team | GP | ERA | W-L | K | WHIP | IP | SV |
|---|---|---|---|---|---|---|---|---|
| Career | ![]() | 68 | 4.2295084 | 10-8 | 135 | 1.3770492 | 0.0 | 2 |
| 2026 | ![]() | 24 | 2.76 | 2-1 | 23 | 1.06 | 29.1 | 1 |
| 2025 |
Length
1 year
Total Value
$800K
Guaranteed
$480K
AAV
$800K/yr
The narrative around Cooper Criswell in Seattle is about as understated as acquisitions get, and that muted reception earns him a D sentiment grade that aligns closely with the modest expectations the move generated. Coverage has been uniformly low-key, framing the 29-year-old right-hander as a depth acquisition from the Mets for cash — the kind of transaction that barely registers beyond a beat writer's transaction log, with the prevailing media read being that he fills a swingman and bullpen reinforcement role without any expectation of impact pitching. That framing is entirely consistent with his D+ performance grade, which signals below-average production from a player who profiles as organizational depth rather than a trusted leverage option. The Mariners have been active in roster churn recently — adding Brendan Donovan, claiming Rhylan Thomas off waivers, and logging several IL-related signings — which paints a picture of a front office patching holes wherever it can, and Criswell fits squarely into that transactional pattern rather than standing out as a deliberate upgrade. Sitting at 18-20 and on the outside edge of the AL West playoff picture, Seattle needs more than serviceable depth pieces to climb, and the cooling sentiment trend over the last 30 days reflects a fanbase losing patience with moves that feel like roster maintenance rather than genuine reinforcement. The bottom line is that Criswell arrives with no buzz, limited upside expectations, and a public perception that mirrors exactly what the front office paid for him — which, given the cash-only price tag, may be precisely the point.
Cooper Criswell ranks 332nd of 389 graded relief pitchers by performance. That slots Cooper between Brandon Eisert (C-) just ahead and Carson Seymour (D+) just behind.
Graded higher
Brandon EisertWhite SoxC-Joel KuhnelBrewersC-Jonathan LoaisigaDiamondbacksC-Graded lower
Carson Seymour| Date | OPP | Result | AB | H | R | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|
| Mon, 6/8 | @ BAL | W 6-3 | - | - | - | 0 | - | - | - |
| Wed, 6/3 | vs NYM | L 1-7 | - | - | - | 0 | - | - | - |
Auto-moderated fan forum with 5-minute speaker turns
Loading discussion...
Cooper Criswell is a player in his 5th MLB season listed at RP for the Mariners. FanVerdicts covers every MLB player, team, GM, and transaction — and puts your verdict on all of it. Sign in to cast your Fan Verdict on Cooper Criswell, see where the crowd lands, and argue the call. FanVerdicts also brings its own read — performance, sentiment, and Contract Value Index — as one honest input alongside the crowd's. Where FanVerdicts has weighed in so far: Performance D+, Sentiment D.
The crowd's Fan Verdict moves in real time as fans vote on this profile. FanVerdicts' own read updates as new data lands — performance recalculates when MLB game stats post, sentiment shifts with media coverage and fan discussion, and the Contract Value Index recomputes when contract terms change. Contract details below show the structure (years, total value, average annual value, guarantees) behind the Contract Value Index read.
For league-wide context, the MLB hub has team rankings, GM report cards, the transactions feed, and live scoreboards. The MLB player rankings page sorts every active player by performance and contract value within their position.
![]() |
| 7 |
| 3.57 |
| 1-0 |
| 9 |
| 1.58 |
| 17.2 |
| 1 |
| 2024 | ![]() | 26 | 4.08 | 6-5 | 73 | 1.35 | 99.1 | 0 |
| 2023 | ![]() | 10 | 5.73 | 1-1 | 27 | 1.55 | 33.0 | 0 |
| 2022 | ![]() | 1 | 2.70 | 0-0 | 4 | 0.90 | 3.1 | 0 |
| 2021 | ![]() | 1 | 20.25 | 0-1 | — | 4.50 | 1.1 | 0 |
Peers ranked by Performance grade among players at the same position. Tap any name for their full profile.
| Wed, 6/3 | vs NYM | W 8-3 | - | - | - | 0 | - | - | - |