Impact Mattson is no longer on the 40-man roster but will stick around in the organization. He allowed three runs over 5.1 relief innings for the Pirates this season.
NOVEMBER 4 • ROTOWIRE
ISAAC MATTSON #64 - PITCHER - PITTSBURGH PIRATES
0-0 W-L •
1.12 WHIP •
5.06 ERA
0-0 W-L
1.12 WHIP
5.06 ERA
Removed from 40-man roster The Pirates outrighted Mattson to Triple-A Indianapolis on Monday, Andrew Destin of the Pittsburgh Post-Gazette reports.
Isaac Mattson impresses in Pirates debut, grateful to be back in big leagues CINCINNATI — As Isaac Mattson warmed up in the visitor’s bullpen at Great American Ball Park, he sought to keep his routine the same. On Fri...
SEPTEMBER 22 • POST-GAZETTE.COM
Selected from Triple-A The Pirates selected Mattson was selected from Triple-A Indianapolis on Thursday, Noah Hiles of the Pittsburgh Post-Gazette reports.
Impact Mattson signed a minor-league contract with the Pirates in December and has been through Double-A and Triple-A during 2024. He has appeared in 30 games for Triple-A Indianapolis, notching a 3.19 ERA across 62.0 innings. The 29-year-old made his last and only MLB appearances in 2021 for Baltimore, where he allowed three earned runs in 4.1 innings. In a corresponding move, Jake Woodford was designated for assignment Thursday.
SEPTEMBER 19 • ROTOWIRE
Heads to Pirates on MiLB deal Mattson signed a minor-league contract with the Pirates on Dec. 11.
Impact Mattson, 28, began the 2023 season in the independent Atlantic League before inking a minor-league deal with the Twins in June. He went on to register a 3.62 ERA, 1.21 WHIP and 42:24 K:BB over 32.1 innings for Double-A Wichita and will likely open the 2024 campaign with the Double-A affiliate of the Pirates in Altoona.
DECEMBER 20, 2023 • ROTOWIRE
Time's up in Baltimore organization The Orioles released Mattson on Monday.
Impact Mattson reached the majors for the first time in 2021 and made four appearances out of the Baltimore bullpen, but he was outrighted off the 40-man roster in the spring and had pitched exclusively at Triple-A Norfolk this season. Over his 17.2 innings with Norfolk, Mattson turned in a 6.62 ERA, 1.81 WHIP and 14:20 K:BB.
JULY 19, 2022 • ROTOWIRE
Healthy at Triple-A Mattson (shoulder) has made three relief appearances for Triple-A Norfolk this season, covering three no-hit scoreless innings while striking out three and issuing one walk.
Impact Mattson dealt with a sore right shoulder in spring training, which closed the door on any outside chance he had for making the Orioles' Opening Day roster. After being outrighted off the 40-man roster April 8, Mattson will face an even tougher time making it back in the big leagues even though he's now healthy again.
APRIL 20, 2022 • ROTOWIRE
Outrighted to Triple-A Mattson (shoulder) cleared waivers and was outrighted to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
Impact Mattson was optioned to Norfolk earlier this week and has now lost his spot on Baltimore's 40-man roster. He entered spring training behind schedule due to shoulder soreness, and it's unclear when he's expected to be ready for game action.
APRIL 8, 2022 • ROTOWIRE
Sent to Triple-A Mattson (shoulder) was optioned to Triple-A Norfolk on Wednesday, Zachary Silver of MLB.com reports.
Impact Mattson was a month behind schedule entering spring training due to shoulder soreness and will begin the campaign in the minors. He didn't appear in any Grapefruit League games but could see action for Norfolk in the near future.
APRIL 6, 2022 • ROTOWIRE
Delayed by sore shoulder Mattson is a month behind schedule due to shoulder soreness, Roch Kubatko of MASNSports.com reports.
Impact Mattson isn't expected to get on a mound until April and will still have weeks of buildup to do at that point, so he'll almost certainly open the season on the injured list. The 26-year-old made his big-league debut last season but threw just 4.1 innings, so he's not necessarily in line for a significant role once he gets healthy.
MARCH 15, 2022 • ROTOWIRE
Matz sharp, Jays beat Orioles 6-4 to stay in wild card race
Steven Matz pitched seven solid innings to win his fifth straight decision, Danny Jansen homered and drove in three runs, and the Toronto Blue Jays kept their playoff hopes alive b...OCTOBER 2, 2021 • ASSOCIATED PRESS
Recalled by Orioles Mattson was recalled from Triple-A Norfolk on Friday.
Impact Mattson has made three major-league appearances this season, allowing three runs on three hits in three innings of work, striking out three batters while walking four. Alexander Wells was optioned to clear space on the roster.
OCTOBER 1, 2021 • ROTOWIRE
Dealing with shoulder injury Mattson was placed on the 7-day minor-league injured list due to right shoulder soreness Friday, Roch Kubatko of MASNSports.com reports.
Impact Mattson last pitched at Triple-A Norfolk on Aug. 13, when he struck out two in two perfect innings to earn a save. The severity of the injury isn't yet clear, but he'll miss at least a week while he recovers.
AUGUST 20, 2021 • ROTOWIRE
Sent to Triple-A Mattson was optioned to Triple-A Norfolk following Wednesday's loss to the Tigers, Dan Connolly of The Athletic reports.
Impact Mattson was promoted by the Orioles over the weekend and made one appearance during his brief time with the team, allowing two runs on two hits with two strikeouts and two walks in one inning. The 26-year-old will return to Norfolk, where he's surrendered 12 runs on 22 hits across 11.1 innings.
AUGUST 12, 2021 • ROTOWIRE
Miguel Cabrera hits 499th homer, Tigers handle Orioles 5-2
Miguel Cabrera hit his 499th career home run, part of a three-hit night for the Detroit slugger that helped the Tigers hand the Baltimore Orioles their seventh straight loss, 5-2AUGUST 12, 2021 • ASSOCIATED PRESS
Recalled Saturday Mattson was recalled from Triple-A Norfolk on Saturday.
Impact Mattson spent just over a month with the Triple-A club, and he's allowed five runs (four earned) on six hits and three walks while striking out five in three innings since his demotion. He's made two relief appearances in the majors during low-leverage situations this year, and he'll play a similar role after right-hander Conner Greene was designated for assignment.
AUGUST 7, 2021 • ROTOWIRE
Sent to Triple-A Mattson was optioned to Triple-A Norfolk on Sunday.
Impact The right-hander was promoted Wednesday and will return to Norfolk after delivering 1.1 scoreless frames in his lone appearance. Mattson has struggled through 11 outings at Triple-A this season with eight runs allowed on 16 hits.
JULY 4, 2021 • ROTOWIRE
Recalled by Baltimore Mattson was recalled from Triple-A Norfolk on Wednesday.
Impact The right-hander made his big-league debut for the Orioles in early May and and will rejoin the team Wednesday. Mattson has struggled at Triple-A this season with a 8.64 ERA and 2.35 WHIP across 8.1 innings.
JUNE 30, 2021 • ROTOWIRE
Sent down by Orioles Mattson was optioned to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
Impact Mattson made his major-league debut in the ninth inning of Friday's loss to the Red Sox and allowed one run on a hit and a walk in two-thirds of an inning. He'll now head back to Triple-A to make room for left-hander Zac Lowther, who will be called up ahead of his scheduled start Saturday.
MAY 8, 2021 • ROTOWIRE
Promoted to big leagues Mattson was recalled Monday, Roch Kubatko of MASNSports.com reports.
Impact Mattson hasn't pitched in an official minor-league contest since the 2019 campaign when he spent most of his time at Double-A Mobile. He cruised to a 2.68 ERA and 1.00 WHIP with a 61:13 K:BB over 43.2 frames while with the Bears.
MAY 4, 2021 • ROTOWIRE
