Isaiah Campbell

Organization Prospect Rankings

• 
  Ranked Seattle Mariners #20 prospect in 2023
  BA Grade/Risk: 40/High
  
  Track Record: Campbell struggled with elbow injuries as an underclassman at Arkansas but finally stayed healthy and became the Razorbacks' ace as a redshirt junior in 2019. The Mariners drafted him in the supplemental second round on the strength of that showing and signed him for $850,000. Campbell again ran into health issues after signing and made only five appearances in his pro debut before having season-ending surgery to clean up loose bodies in his right elbow, but he returned in 2022 and thrived with a move to the bullpen. He led all Mariners relief prospects (min. 25 appearances) with a 1.57 ERA and recorded 11 saves as he rose from High-A to Double-A.
  
  Scouting Report: Previously a four-pitch starter, Campbell has streamlined his arsenal in relief and now throws his fastball and slider exclusively. His above-average fastball sits 94-96 mph and touches 98-99 out of his big, powerful frame and gets swings and misses up in the strike zone. He throws an above-average, 82-84 mph slider more frequently than his fastball and has a good feel for locating it, frequently gets swings and misses and weak contact off the edges of the plate. Campbell doesn't throw a changeup, but his slider is effective against lefties and helps him handle them. He throws strikes with above-average control and walked only three batters in 28 innings of relief.
  
  The Future: Campbell has a chance to rise as a middle reliever if he can avoid further injuries. He'll see Triple-A Tacoma in 2023.
  
  Scouting Grades: Fastball: 55. Slider: 55. Control: 55
• 
  Ranked Seattle Mariners #15 prospect in 2021
  TRACK RECORD: Campbell boosted his draft stock in 2019 after he went 12-1, 2.26 as Arkansas' Friday night starter. Taken in the supplemental second round by the Mariners, he sat after signing because of a heavy college workload and a history of elbow issues. Campbell began taking regular turns on the mound at the Mariners' alternate training site in 2020.
  
  SCOUTING REPORT: A big-bodied righthander with arm strength, Campbell has an above-average fastball that sits 92-95 mph. He commands his heater well and complements it with a trio of competitive, if unspectacular, secondaries. Campbell slowed his slider a few ticks to average 81 mph, adding horizontal break and making it more sweepy. His 82 mph split-changeup can be an above-average pitch with deception and tumble, and his 71-75 mph curveball has lots of depth. He locates his pitches well with average control, keeping them in the bottom of the zone and elevating the fastball when needed. He is the son of an Air Force veteran and is lauded for his makeup.
  
  THE FUTURE: Campbell profiles as a back-end starter. A full-season debut awaits in 2021.
• 
  Ranked Seattle Mariners #13 prospect in 2020
  TRACK RECORD: Drafted in the second compensation round after a strong season as the Arkansas' Friday night starter, Campbell sat out his first pro summer after a long college season. He posted an outstanding 12-1 record and 2.26 ERA in his final year at Arkansas.
  
  SCOUTING REPORT: Campbell validated his decision to return to campus by improving the power, shape and command of his slider. His above-average fastball sat 92-95 mph in college, with the 84-87 mph slider being the pitch that allows the heater to play up. Rounding out his four-pitch mix is a split-changeup that flashes above-average with deception and tumble, as well as a 75-80 mph curveball. He locates his pitches well, keeping them at the bottom of the zone but also elevating the fastball as needed.
  
  THE FUTURE: Campbell's pure physicality convinces observers that he can remain in the rotation, projecting to be a No. 3 or No. 4 starter. He'll likely launch his pro career at low Class A West Virginia.

Draft Prospects

• Ranked #47 prospect in 2019 draft
  With a father in the Air Force, Campbell was well-versed with picking up and moving as a child. He was born in Portugal and spent time in Germany and Turkey as well. He's settled in at Arkansas for four years now, and the redshirt junior is reaping the benefits of patiently developing into the Razorbacks' ace. Campbell was expected to be a breakout pitcher for Arkansas in 2017, but bone spurs in his elbow forced him to redshirt and he was inconsistent as a redshirt sophomore in 2018. He opted to turn down the Angels last June as a 24th-round pick in order to prove what he could do if he put everything together. This year, Campbell has proven to be one of the best Friday starters in the Southeastern Conference. Campbell has an excellent, 6-foot-4, 225-pound frame, and he's managed to maintain that weight this year. In 2018, he lost strength and stamina as the season wore on and struggled as a result. Campbell's step forward this year has largely come because he's significantly improved the power, shape and command of his slider. In the past, Campbell relied on a fringy, 75-80 mph curveball. Now, his slider is much harder in the 84-87 mph range, and he can confidently locate the pitch down in the zone. Having an above-average breaking ball has made his already above-average, 92-95 mph fastball play up even more. He's also developed a much-improved split-changeup that flashes above-average with deception and tumble. Campbell's command and control have significantly improved. Last year, his arm struggled to stay in-sync with his lower half, and he struggled to locate when trying to throw down in the zone. Now, he fills the bottom quadrants with his fastball and slider while also elevating his fastball up and out of the zone with purpose as needed. Campbell has some injuries and inconsistent performances in his past, but this year he's started to convince scouts that he can remain a starter because of his improved secondary offerings. He's shown the makings of a future No. 3 or No. 4 starter.
• Ranked #73 prospect in 2018 draft
  Campbell has a near perfect pitcher's frame at 6-foot-4, 225 pounds and his stuff lives up to expectations. He can sit 92-94 mph with a deceptive 82-84 mph above-average changeup and an 78-84 mph fringe-average curveball that he can locate for strikes. His curveball doesn't currently have the sharpness it's shown in the past, however, and Campbell's results have rarely matched his stuff this season. He was pushed from Saturday to the Sunday starter role as he struggled, and he was 3-5, 4.76 with more than a hit allowed per inning as of early May. Campbell's delivery leaves him pitching uphill, with his arm working to catch up to his lower half. That makes it a little tougher for him to locate down in the zone and his control does waver at times. But Campbell's biggest problem this year has been maintaining his stuff. He has made it out of the sixth inning only once in his first 11 starts and he failed to make it through the fifth in six of those 11 starts. Campbell is a deliberate worker. He is a redshirt sophomore who missed the 2017 season with elbow soreness and missed a start against Ole Miss this season with elbow inflammation. Campbell's lengthy medical will play a factor in where he is drafted, but he has shown promise when he is at his best.

• February, 2023 Scouting Report
  BA Grade/Risk: 40/High
  
  Track Record: Campbell struggled with elbow injuries as an underclassman at Arkansas but finally stayed healthy and became the Razorbacks' ace as a redshirt junior in 2019. The Mariners drafted him in the supplemental second round on the strength of that showing and signed him for $850,000. Campbell again ran into health issues after signing and made only five appearances in his pro debut before having season-ending surgery to clean up loose bodies in his right elbow, but he returned in 2022 and thrived with a move to the bullpen. He led all Mariners relief prospects (min. 25 appearances) with a 1.57 ERA and recorded 11 saves as he rose from High-A to Double-A.
  
  Scouting Report: Previously a four-pitch starter, Campbell has streamlined his arsenal in relief and now throws his fastball and slider exclusively. His above-average fastball sits 94-96 mph and touches 98-99 out of his big, powerful frame and gets swings and misses up in the strike zone. He throws an above-average, 82-84 mph slider more frequently than his fastball and has a good feel for locating it, frequently gets swings and misses and weak contact off the edges of the plate. Campbell doesn't throw a changeup, but his slider is effective against lefties and helps him handle them. He throws strikes with above-average control and walked only three batters in 28 innings of relief.
  
  The Future: Campbell has a chance to rise as a middle reliever if he can avoid further injuries. He'll see Triple-A Tacoma in 2023.
  
  Scouting Grades: Fastball: 55. Slider: 55. Control: 55
• December, 2022 Scouting Report
  BA Grade/Risk: 40/High
  
  Track Record: Campbell struggled with elbow injuries as an underclassman at Arkansas but finally stayed healthy and became the Razorbacks' ace as a redshirt junior in 2019. The Mariners drafted him in the supplemental second round on the strength of that showing and signed him for $850,000. Campbell again ran into health issues after signing and made only five appearances in his pro debut before having season-ending surgery to clean up loose bodies in his right elbow, but he returned in 2022 and thrived with a move to the bullpen. He led all Mariners relief prospects (min. 25 appearances) with a 1.57 ERA and recorded 11 saves as he rose from High-A to Double-A.
  
  Scouting Report: Previously a four-pitch starter, Campbell has streamlined his arsenal in relief and now throws his fastball and slider exclusively. His above-average fastball sits 94-96 mph and touches 98-99 out of his big, powerful frame and gets swings and misses up in the strike zone. He throws an above-average, 82-84 mph slider more frequently than his fastball and has a good feel for locating it, frequently gets swings and misses and weak contact off the edges of the plate. Campbell doesn't throw a changeup, but his slider is effective against lefties and helps him handle them. He throws strikes with above-average control and walked only three batters in 28 innings of relief.
  
  The Future: Campbell has a chance to rise as a middle reliever if he can avoid further injuries. He'll see Triple-A Tacoma in 2023.
  
  Scouting Grades: Fastball: 55. Slider: 55. Control: 55
• March, 2021 Scouting Report
  TRACK RECORD: Campbell boosted his draft stock in 2019 after he went 12-1, 2.26 as Arkansas' Friday night starter. Taken in the supplemental second round by the Mariners, he sat after signing because of a heavy college workload and a history of elbow issues. Campbell began taking regular turns on the mound at the Mariners' alternate training site in 2020.
  
  SCOUTING REPORT: A big-bodied righthander with arm strength, Campbell has an above-average fastball that sits 92-95 mph. He commands his heater well and complements it with a trio of competitive, if unspectacular, secondaries. Campbell slowed his slider a few ticks to average 81 mph, adding horizontal break and making it more sweepy. His 82 mph split-changeup can be an above-average pitch with deception and tumble, and his 71-75 mph curveball has lots of depth. He locates his pitches well with average control, keeping them in the bottom of the zone and elevating the fastball when needed. He is the son of an Air Force veteran and is lauded for his makeup.
  
  THE FUTURE: Campbell profiles as a back-end starter. A full-season debut awaits in 2021.
• December, 2020 Scouting Report
  TRACK RECORD: Campbell boosted his draft stock in 2019 after he went 12-1, 2.26 as Arkansas' Friday night starter. Taken in the supplemental second round by the Mariners, he sat after signing because of a heavy college workload and a history of elbow issues. Campbell began taking regular turns on the mound at the Mariners' alternate training site in 2020.
  
  SCOUTING REPORT: A big-bodied righthander with arm strength, Campbell has an above-average fastball that sits 92-95 mph. He commands his heater well and complements it with a trio of competitive, if unspectacular, secondaries. Campbell slowed his slider a few ticks to average 81 mph, adding horizontal break and making it more sweepy. His 82 mph split-changeup can be an above-average pitch with deception and tumble, and his 71-75 mph curveball has lots of depth. He locates his pitches well with average control, keeping them in the bottom of the zone and elevating the fastball when needed. He is the son of an Air Force veteran and is lauded for his makeup.
  
  THE FUTURE: Campbell profiles as a back-end starter. A full-season debut awaits in 2021.
• July, 2020 Scouting Report
  TRACK RECORD: Drafted in the second compensation round after a strong season as the Arkansas’ Friday night starter, Campbell sat out his first pro summer after a long college season. He posted an outstanding 12-1 record and 2.26 ERA in his final year at Arkansas.
  
  SCOUTING REPORT: Campbell validated his decision to return to campus by improving the power, shape and command of his slider. His above-average fastball sat 92-95 mph in college, with the 84-87 mph slider being the pitch that allows the heater to play up. Rounding out his four-pitch mix is a split-changeup that flashes above-average with deception and tumble, as well as a 75-80 mph curveball. He locates his pitches well, keeping them at the bottom of the zone but also elevating the fastball as needed.
  
  THE FUTURE: Campbell’s pure physicality convinces observers that he can remain in the rotation, projecting to be a No. 3 or No. 4 starter. He’ll likely launch his pro career at low Class A West Virginia.
• February, 2020 Scouting Report
  TRACK RECORD: Drafted in the second compensation round after a strong season as the Arkansas' Friday night starter, Campbell sat out his first pro summer after a long college season. He posted an outstanding 12-1 record and 2.26 ERA in his final year at Arkansas.
  
  SCOUTING REPORT: Campbell validated his decision to return to campus by improving the power, shape and command of his slider. His above-average fastball sat 92-95 mph in college, with the 84-87 mph slider being the pitch that allows the heater to play up. Rounding out his four-pitch mix is a split-changeup that flashes above-average with deception and tumble, as well as a 75-80 mph curveball. He locates his pitches well, keeping them at the bottom of the zone but also elevating the fastball as needed.
  
  THE FUTURE: Campbell's pure physicality convinces observers that he can remain in the rotation, projecting to be a No. 3 or No. 4 starter. He'll likely launch his pro career at low Class A West Virginia.
• December, 2018 Scouting Report
  With a father in the Air Force, Campbell was well-versed with picking up and moving as a child. He was born in Portugal and spent time in Germany and Turkey as well. He's settled in at Arkansas for four years now, and the redshirt junior is reaping the benefits of patiently developing into the Razorbacks' ace. Campbell was expected to be a breakout pitcher for Arkansas in 2017, but bone spurs in his elbow forced him to redshirt and he was inconsistent as a redshirt sophomore in 2018. He opted to turn down the Angels last June as a 24th-round pick in order to prove what he could do if he put everything together. This year, Campbell has proven to be one of the best Friday starters in the Southeastern Conference. Campbell has an excellent, 6-foot-4, 225-pound frame, and he's managed to maintain that weight this year. In 2018, he lost strength and stamina as the season wore on and struggled as a result. Campbell's step forward this year has largely come because he's significantly improved the power, shape and command of his slider. In the past, Campbell relied on a fringy, 75-80 mph curveball. Now, his slider is much harder in the 84-87 mph range, and he can confidently locate the pitch down in the zone. Having an above-average breaking ball has made his already above-average, 92-95 mph fastball play up even more. He's also developed a much-improved split-changeup that flashes above-average with deception and tumble. Campbell's command and control have significantly improved. Last year, his arm struggled to stay in-sync with his lower half, and he struggled to locate when trying to throw down in the zone. Now, he fills the bottom quadrants with his fastball and slider while also elevating his fastball up and out of the zone with purpose as needed. Campbell has some injuries and inconsistent performances in his past, but this year he's started to convince scouts that he can remain a starter because of his improved secondary offerings. He's shown the makings of a future No. 3 or No. 4 starter.