Adam Macko
P | Bats/Throws: L/L | 6' 0" 170LBS | Age: 23
Draft: 2019 | Rd: 7, #216, Seattle Mariners | Vauxhall HS
MLB Pipeline Rank
W L ERA G GS SV IP SO WHIP
2024 0 0 9.00 1 1 0 3 3 2.33
Career Minors 12 17 4.46 66 59 0 274.1 359 1.32
G W-L ERA IP SO WHIP
2024 1 0-0 9.00 3 3 2.33
Career Minors 66 12-17 4.46 274.1 359 1.32

Standard Minor League Pitching Statistics

SeasonTmLGLWLERAGGSSVIPHRERHRBBSOWHIP
2019 2 Teams Minors 0 3 3.09 9 2 0 23.1 19 10 8 1 12 32 1.33
2019 AZL Mariners AZL ROK 0 3 3.38 8 2 0 21.1 19 10 8 1 11 31 1.41
2019 Everett AquaSox NWL A(Short) 0 0 0.00 1 0 0 2.0 0 0 0 0 1 1 0.50
2021 Modesto Nuts A W A 2 2 4.59 9 9 0 33.1 29 19 17 1 21 56 1.50
2022 Everett AquaSox NWL A+ 0 2 3.99 8 8 0 38.1 33 18 17 4 20 60 1.38
2023 Vancouver Canadians NWL A+ 5 5 4.81 20 20 0 86.0 76 51 46 7 40 106 1.35
2024 3 Teams Minors 5 5 4.63 20 20 0 93.1 78 49 48 10 35 105 1.21
2024 Dunedin Blue Jays FSL A 0 0 1.00 3 3 0 9.0 5 1 1 1 2 12 0.78
2024 New Hampshire Fisher Cats EAS AA 5 5 4.87 16 16 0 81.1 69 45 44 7 30 90 1.22
2024 Buffalo Bisons INT AAA 0 0 9.00 1 1 0 3.0 4 3 3 2 3 3 2.33

Scouting Report

2024

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

Born in Slovakia, Macko grew up in Ireland and played high school baseball in Alberta, Canada, making him one of this system’s most unique development stories. Macko was acquired from the Mariners as a smaller piece in the Erik Swanson deal, but we’re starting to see the upside Blue Jays scouts were so excited about at the time. Macko is a popular breakout pick for 2024, but that already started at the tail end of his ‘23 season when he finished with three of his best outings. Down the stretch, Macko struck out 26 batters over 15 innings of one-run, three-hit ball.

The most encouraging number was the 86 innings Macko pitched in 2023, a career high at 22 years old after battling injuries earlier in his career. Not only did he maintain his velocities through the season, he actually got stronger, which is rare. Macko typically reaches up to touch the mid-90s, but he’s showing more consistently that he has an extra gear. He'll show a 12-to-6 curveball in the mid-70s that has acted as his best whiff-heavy pitch, and he's also mixed in more of a 81-84 mph slider with some sweep. His 79-81 mph changeup has developed enough to become at least an average pitch.

The Blue Jays have already added Macko to their 40-man roster, and he was showing the right amount of gains -- particularly in the control department -- to be considered a much-needed success story in the Toronto system, until he began dealing with left forearm soreness. He is expected to avoid surgery, but the injury clouds what's otherwise been a positive year for the southpaw.


2023

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

Born in Slovakia, Macko grew up in Ireland and played high school baseball in Alberta, Canada, making for a unique path. In Alberta, Macko pitched for Vauxhall Academy, one of Canada’s top baseball schools, which helped expose him to scouts. Much of Macko’s pitching is self-taught, though, from watching aces of his day like David Price and Justin Verlander.

An elbow strain and meniscus injury limited Macko to 38 1/3 innings in 2022, posting a 4.59 ERA, and he posted a 6.08 ERA while getting in another 13 1/3 innings in the Arizona Fall League. Macko’s upside is far brighter than those early numbers, though, and getting a full healthy season under his belt will be the first priority for the Blue Jays after they added him alongside Erik Swanson in the Teoscar Hernandez deal over the offseason. 

Macko has added some bulk in recent years, which has helped greatly. It’s enabled him to reach into the upper-90s with his fastball at times, though it sits in the low-to-mid-90s range, and his strikeout upside is significant thanks to a strong curveball and fast-improving slider. He’s now a drastically different pitcher than he was when the Mariners drafted him in the seventh round in 2019. If he can continue on this trajectory, there is a very enticing ceiling to the young lefty, even if injury and control concerns have hampered his path in recent years. 


2022

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

Macko grew up in Ireland and graduated high school in Alberta, but he was born in Slovakia. If he reaches the Majors, he’d become the third player ever to do so from that country. When his family moved to Alberta, he enrolled at Vauxhall Academy, one of Canada’s premier baseball schools, which put him on scouts’ radars. And his rise has been reflective of today’s YouTube era, given that he taught himself how to pitch by watching videos of David Price and Justin Verlander, among other elite aces. After being limited to 38 1/3 High-A innings in 2022 due to an elbow strain and meniscus injury, Macko was traded from the Mariners to the Blue Jays in a three-player deal that sent Teoscar Hernández the other way in November.

When Seattle drafted him in the seventh round in 2019, he was in the 150-155-pound range, and he’s since bulked up to 205, which has helped bring his stuff along in an incredibly positive way. Averaging 88 mph right after he signed, he averaged around 93.5 mph in 2021 and topped out at 97 as recently as the club’s Gas Camp this offseason, with more bite. While Macko’s curveball has always been his bread and butter, and that pitch has improved, his new slider might end up his best weapon, sitting around 83-85 mph with a lot of sweep. Overall, he has struck out at least 35 percent of his batters faced in his last two seasons.

For all of these reasons, the 21-year-old possesses a unique blend of movement and velocity, which isn’t exactly what the Mariners were expecting -- a much-improved hurler compared to the raw lefty who entered 2021. Macko’s injury woes -- he also threw only 33 1/3 frames in 2021 due to rotator tendinitis -- will still be a concern in Toronto, as will be his problems with control, but he remains raw on the mound with an arrow pointing up. The 21-year-old will be Rule 5-eligible at the end of the 2023 season.


2021

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

Though he grew up in Ireland and graduated from high school in Alberta, Macko was born in Slovakia, which would make him the third Slovakian player ever to reach the Majors. His ascent has been a fascinating one, particularly since he taught himself how to pitch through YouTube videos of David Price and Justin Verlander, among other elite aces. When his family moved to Alberta, he enrolled at Vauxhall Academy, one of Canada’s top baseball schools, which put him on scouts’ radars.

When the Mariners drafted Macko in the seventh round in 2019, he had plenty of room to build out his 6-foot, 170-pound frame, particularly with his upper body. Macko’s multi-pitch repertoire has tremendous upside, but he’ll still need to show he can execute those offerings consistently before Seattle dives in to determine what his profile is long term. 

Overall, Macko comes into 2021 incredibly raw and with the need to develop. His ability as a left-hander with some legitimate command is promising, but he’ll need to grow upon his velocity and better fortify his multi-pitch mix to remain in consideration to be a starter. Long term, the Mariners could see him better positioned for a spot in the bullpen. 



Awards




Transactions

Team Date Transaction
10/01/2024 Toronto Blue Jays recalled LHP Adam Macko from Buffalo Bisons.
09/17/2024 LHP Adam Macko assigned to Buffalo Bisons from New Hampshire Fisher Cats.
08/24/2024 New Hampshire Fisher Cats sent LHP Adam Macko on a rehab assignment to Dunedin Blue Jays.
07/06/2024 New Hampshire Fisher Cats placed LHP Adam Macko on the 7-day injured list retroactive to July 5, 2024.
07/05/2024 New Hampshire Fisher Cats placed LHP Adam Macko on the 7-day injured list.
03/24/2024 LHP Adam Macko assigned to New Hampshire Fisher Cats from Buffalo Bisons.
03/08/2024 Toronto Blue Jays optioned LHP Adam Macko to Buffalo Bisons.
03/07/2024 Toronto Blue Jays Prospects activated LHP Adam Macko.
11/14/2023 Toronto Blue Jays selected the contract of LHP Adam Macko from Vancouver Canadians.
11/16/2022 Toronto Blue Jays traded LF Teoscar Hernandez to Seattle Mariners for LHP Adam Macko and RHP Erik Swanson.
11/16/2022 LHP Adam Macko assigned to Vancouver Canadians.
11/10/2022 Everett AquaSox activated LHP Adam Macko.
09/16/2022 Peoria Javelinas activated LHP Adam Macko from the 60-day injured list.
09/16/2022 Peoria Javelinas activated LHP Adam Macko from the 60-day injured list.
07/23/2022 Everett AquaSox transferred LHP Adam Macko from the 7-day injured list to the 60-day injured list.
06/03/2022 Everett AquaSox placed LHP Adam Macko on the 7-day injured list.
06/03/2022 Everett AquaSox placed LHP Adam Macko on the 7-day injured list.
04/07/2022 LHP Adam Macko assigned to Everett AquaSox.
04/30/2021 LHP Adam Macko and assigned to Modesto Nuts from Mariners Organization.
02/12/2021 LHP Adam Macko assigned to Mariners Organization.
02/12/2021 LHP Adam Macko assigned to Mariners Organization.
11/20/2019 LHP Adam Macko assigned to Everett AquaSox.
11/20/2019 LHP Adam Macko assigned to Everett AquaSox from AZL Mariners.
07/27/2019 LHP Adam Macko assigned to AZL Mariners from Everett AquaSox.
07/22/2019 LHP Adam Macko assigned to Everett AquaSox from AZL Mariners.
07/14/2019 AZL Mariners activated LHP Adam Macko.
06/21/2019 AZL Mariners placed LHP Adam Macko on the reserve list.
06/17/2019 LHP Adam Macko assigned to AZL Mariners.
09/06/2018 LHP Adam Macko assigned to Alberta-Red.
09/07/2017 LHP Adam Macko assigned to Alberta-Red.