Isaac Mattson| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2025 proj | 0 | 0 | 0 | 0 | 5.0 | 3 | 5 | 5 | 3 | 5.40 | 1.600 | -0.6 |
| 2025 | 3 | 1 | 0 | 3 | 25.3 | 17 | 8 | 30 | 6 | 2.13 | 0.987 | 27.9 |
| 2024 | 0 | 0 | 0 | 0 | 5.3 | 1 | 5 | 6 | 3 | 5.06 | 1.125 | 0.1 |
| 2021 | 0 | 0 | 0 | 0 | 4.3 | 5 | 5 | 3 | 3 | 6.23 | 2.308 | -2.0 |
| Date | News |
| 7/30/25 | Mattson earns third MLB win in Pirates’ 2-1 road victory in San Francisco. Harbor Creek grad Isaac Mattson picked up his third MLB win when the Pirates took down the Giants 2-1 in 10 innings Wednesday in the Bay area. Mattson closed with three strikeouts in the final two innings including a pair of K’s in the 10th to seal the deal in Pittsburgh’s victory. The former Husky […] Source: https://www.yahoo.com/news/articles/mattson-earns-... |
| 7/19/25 | Isaac Mattson - Pittsburgh Pirates Relief Pitcher. Arizona Diamondbacks Athletics Atlanta Braves Baltimore Orioles Boston Red Sox Chicago Cubs Chicago White Sox Cincinnati Reds Cleveland Guardians Colorado Rockies Detroit Tigers Houston Astros Kansas City Royals Los Angeles Angels Los Angeles Dodgers Miami Marlins Milwaukee Brewers Minnesota Twins New York Mets New York Yankees Philadelphia Phillies Pittsburgh Pirates San Diego Padres San Francisco Giants Seattle Mariners St. Louis Cardinals Tampa Bay Rays Texas Rangers Toronto Blue Jays Washington Nationals Pitcher Catcher Infielder Outfielder Designated Hitter Isaac Mattson #72 Mike Burrows #53 Bailey Falter #6 Andrew Heaney #45 Mitch Keller #23 Carmen Mlodzinski #50 Paul Skenes #30 Braxton Source: http://www.espn.com/mlb/player/_/id/42063/isaac-ma... |
| 7/01/25 | Harbor Creek grad Mattson earns second win with Pirates. Harbor Creek grad Isaac Mattson (2-0, 1.72 ERA) earned his second win with the Pittsburgh Pirates this season in the team’s 1-0 home victory over the Cardinals Tuesday night at PNC Park. Exceling in his role in middle relief since coming back up from triple-A Indianapolis, Mattson pitched an inning and allowed no hits, no […] Source: https://www.yahoo.com/news/harbor-creek-grad-matts... |
| 6/10/25 | Ask Bucs hurler Isaac Mattson a question on Chatting Practice (2:30 ET). No content provided Source: https://www.mlb.com/ChattingPractice... |
| 6/07/25 | Pesky Pirates win second-straight over Phillies; Davis slugs another clutch homer. Isaac Mattson reported to PNC Park at about 1:30 in the afternoon prior to the Pittsburgh Pirates’ win against the Philadelphia Phillies on Saturday. Source: https://sports.yahoo.com/article/pesky-pirates-win... |
| 5/26/25 | Pirates Sending Pitcher to Minors. The Pittsbugh Pirates have sent one of their pitchers back down to the minor leagues. Noah Hiles of the Pittsburgh Post-Gazette reported that right-handed pitcher Isaac Mattson doesn't have a locker ahead of the series opener vs. the Arizona Diamondbacks at Chase Field and that he's headed back down to Triple-A Indianapolis. Source: https://www.si.com/mlb/pirates/news/pittsburgh-pir... |
| 5/20/25 | Pirates call up Harbor Creek grad Mattson from triple-A. The Pittsburgh Pirates have called up Harbor Creek high school graduate Isaac Mattson. The triple-A Indianapolis Indians pitcher and 814 native, Mattson, has a 2.50 ERA so far this spring with a 2-0 mark in 16 appearances. Mattson, a 2017 MLB draft pick of the Angels who has made stops with the Orioles and Twins, […] Source: https://www.yahoo.com/news/pirates-call-harbor-cre... |
| 5/20/25 | Pirates Relief Pitcher Gets Locker at PNC Park. The Pittsburgh Pirates have a new relief pitcher in their clubhouse at PNC Park. Kevin Gorman of the Pittsburgh Tribune-Review reported that right-handed pitcher Isaac Mattson has a locker in the clubhouse ahead of the second game of the series vs. the Cincinnati Reds at PNC Park. Noah Hiles of the Pittsburgh Post-Gazette reported that this Mattson isn't on the taxi squad and that an additional roster move is incoming. Source: https://www.si.com/mlb/pirates/news/pittsburgh-pir... |
| 12/05/24 | Pirates Re-Sign Pitcher to Minor League Deal. The Pittsburgh Pirates will have one of their pitches back next season, as they re-signed him for 2025. Right-handed pitcher Isaac Mattson announced on his Instagram that he was re-signing with the Pirates. The MLB Transactions page lists this signing as a minor league deal. "Round ???There's something special happening in Pittsburgh," Mattson wrote on his Instagram post. Source: https://www.si.com/mlb/pirates/news/pittsburgh-pir... |
| 2/08/22 | Oriole of the Day: After sporadic 2021, Isaac Mattson could snag bullpen role in 2022. It’s been about a month since The Baltimore Sun’s Oriole of the Day series began, and despite what seems to be progress toward a new collective bargaining agreement, the league and players are reportedly far enough apart that this lockout might not end before Orioles pitchers and catchers are scheduled to report to Florida. In the meantime, The Sun will continue to evaluate each member of Baltimore’s 40-man roster, looking back on their 2021 seasons and looking ahead to a 2022 campaign that hope... Source: https://www.baltimoresun.com/sports/orioles/bs-sp-... |
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