Carson Seymour
P | Bats/Throws: R/R | 6' 6" 260LBS | Age: 25
Draft: 2021 | Rd: 6, #172, New York Mets | Kansas State
MLB Pipeline Rank
W L ERA G GS SV IP SO WHIP
2024 7 10 4.82 29 28 0 134.1 132 1.57
Career Minors 19 21 4.00 85 70 0 362.1 385 1.33
G W-L ERA IP SO WHIP
2024 29 7-10 4.82 134.1 132 1.57
Career Minors 85 19-21 4.00 362.1 385 1.33

Standard Minor League Pitching Statistics

SeasonTmLGLWLERAGGSSVIPHRERHRBBSOWHIP
2021 FCL Mets FCL ROK 0 0 2.08 4 0 0 4.1 3 3 1 0 6 4 2.08
2022 3 Teams Minors 7 8 3.08 24 19 0 111.0 93 49 38 9 31 135 1.12
2022 St. Lucie Mets FSL A 4 0 1.19 7 4 0 30.1 23 6 4 0 9 27 1.05
2022 Brooklyn Cyclones SAL A+ 1 5 3.68 11 9 0 51.1 45 25 21 8 12 65 1.11
2022 Eugene Emeralds NWL A+ 2 3 3.99 6 6 0 29.1 25 18 13 1 10 43 1.19
2022 2 Teams A+ 3 8 3.79 17 15 0 80.2 70 43 34 9 22 108 1.14
2023 Richmond Flying Squirrels EAS AA 5 3 3.99 28 23 0 112.2 96 58 50 8 43 114 1.23
2024 Sacramento River Cats PCL AAA 7 10 4.82 29 28 0 134.1 151 84 72 20 60 132 1.57

Scouting Report

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Video scouting report »

Scouting grades: Fastball: 65 | Curveball: 50 | Slider: 55 | Changeup: 45 | Control: 45 | Overall: 45

Kansas State has produced just one top-100 pick in Draft history, second-rounder Jack Woolsey back in 1969, but Seymour has the upside to become the second. His wildness limited him to 7 1/3 innings as a Dartmouth freshman in 2018, but he won pitcher of the year honors in the Hamptons League that summer and joined the Wildcats. Transfer rules dictated he sit out the 2019 season, though he intrigued scouts by reaching 96 mph in the Cape Cod League and touching 99 during fall practice.

Seymour's physical 6-foot-5 frame produces fastballs that sit at 92-95 when he starts and park at 95-97 in shorter stints, and he uses his size to create downhill plane. He showed the ability to spin a downer curveball on the Cape, though it regressed when he added a mid-80s slider during the fall. His changeup is still a work in progress.

While there's some effort in Seymour's delivery, he repeats his simple mechanics fairly well, so he should be able to provide more consistent strikes than he has. If the redshirt sophomore can improve his ability to locate his pitches, he could profile as a starter. He didn't make any progress and his stuff dropped off after a couple of innings during the brief 2020 season, so he may wind up as a reliever.


2024

Scouting grades: Fastball: 55 | Slider: 60 | Changeup: 40 | Control: 45 | Overall: 40 

Though Seymour pushed his fastball to 99 mph in college, he still got rocked for a 6.70 ERA in one season at Dartmouth and two at Kansas State. He has fared much better in pro ball since the Mets selected him in the sixth round in 2021, though they shipped him to the Giants with two other pitching prospects and J.D. Davis in exchange for Darin Ruff a year later. He spent last year at Double-A, logging a 3.99 ERA with 114 strikeouts in 112 2/3 innings. 

Seymour still can run his 92-95 mph fastball to 97 on occasion, but it's more notable for its heavy sink and downhill plane than its velocity, producing a lot of weak contact and a 1.8 groundout/flyout ratio in his first three years as a pro. He misses more bats with his upper-80s slider/cutter, which helps him keep left-handers in check. He focuses on those two main pitches, rarely using his mid-80s sinking changeup. 

Seymour worked just 84 2/3 innings in college, where he lost time to the pandemic and then-NCAA transfer rules that caused him to sit out a season. His control has steadily improved as he gets more experience on the mound, though his command is more of work in progress. He can't blow his fastball by hitters, so locating it will be key as he tries to continue his climb as a potential No. 4 or 5 starter. 


2023

Scouting grades: Fastball: 60 | Curveball: 50 | Slider: 55 | Changeup: 45 | Control: 45 | Overall: 40

While Seymour ran his fastball up to 99 mph during his college career, he compiled a 6.70 ERA between one season at Dartmouth and two at Kansas State. He has enjoyed much more success since the Mets drafted him in 2021's sixth round, though they traded him with two other pitching prospects and J.D. Davis to acquire Darin Ruf from the Giants last August. Seymour finished his first full pro season with a 3.08 ERA and 135 strikeouts in 111 innings, mostly in High-A.

Seymour's best pitch is a turbo sinker that sits in the mid-90s and touches 97 mph, and its late life and the downhill plane he creates with his 6-foot-6 frame resulted in 2.4 groundout/flyout ratio in 2022 (seventh among Minor Leaguers with 100 innings). He also can carve up hitters with an upper-80s slider/cutter that helps him keep left-handers at bay more than his sinking changeup with similar velocity. He has a second power breaking ball in a low-80s downer curveball that can be a solid pitch at times but lacks consistency.

Seymour's workload last season exceeded the 84 2/3 innings he worked in four years of college, where his development was hampered by the NCAA transfer rules in existence at the time as well as the pandemic shutdown. His control improved in 2022 as he got more mound time, though his command still needs more work. He has a relatively clean delivery and arm action for a 6-foot-6, 260-pounder and could continue to get better with more experience.


2022

Scouting grades: Fastball: 60 | Curveball: 50 | Slider: 50 | Changeup: 45 | Control: 50 | Overall: 40 

Though Seymour flashed upper-90s velocity during a college career that included one season at Dartmouth and two at Kansas State, he never enjoyed consistent success. After signing with the Mets as a sixth-rounder in 2021, he has done a much better job of throwing strikes in his first full pro season this summer. The Giants acquired him along with two other pitching prospects and J.D. Davis in exchange for Darin Ruf at the Trade Deadline. 

Seymour operates at 94-96 mph with a turbo sinker that helped him rank seventh in the Minors with a 2.2 groundout/airout ratio at the time of the deal. His fastball's movement and the downhill plane he creates with his 6-foot-6 frame make it difficult for hitters to lift his pitches. He owns a pair of power breaking balls in an upper-80s slider/cutter and a low-80s downer curveball, though both are just average offerings. 

Seymour also has an upper-80s changeup that sinks but it doesn't get enough velocity separation from his heater. While he's finding the strike zone with regularity this year, his lack of a quality secondary offering may have him destined for the bullpen. Working in shorter stints could add more zip to his fastball and more consistency to his breaking stuff. 



Awards




Transactions

Team Date Transaction
11/19/2024 San Francisco Giants selected the contract of RHP Carson Seymour from Sacramento River Cats.
03/24/2024 RHP Carson Seymour assigned to Sacramento River Cats from Richmond Flying Squirrels.
03/07/2024 San Francisco Giants Prospects activated RHP Carson Seymour.
02/08/2024 San Francisco Giants invited non-roster RHP Carson Seymour to spring training.
04/05/2023 RHP Carson Seymour assigned to Richmond Flying Squirrels.
08/02/2022 San Francisco Giants traded 1B Darin Ruf to New York Mets for 3B J.D. Davis, LHP Thomas Szapucki, RHP Carson Seymour and LHP Nick Zwack.
08/02/2022 RHP Carson Seymour assigned to Eugene Emeralds.
05/23/2022 RHP Carson Seymour assigned to Brooklyn Cyclones from St. Lucie Mets.
04/07/2022 RHP Carson Seymour assigned to St. Lucie Mets from FCL Mets.
09/01/2021 RHP Carson Seymour assigned to FCL Mets.
07/20/2021 New York Mets signed RHP Carson Seymour.