Career Timeline of Blake Treinen: Major Achievements and Milestones

From career breakthroughs to professional milestones, explore how Blake Treinen made an impact.

Blake Treinen is a professional baseball relief pitcher currently playing for the Los Angeles Dodgers in MLB. He previously played for the Washington Nationals and Oakland Athletics. He is known for his effective pitching and has been a valuable asset to his teams throughout his career.

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Full Timeline Career & Achievements

1912: Consecutive Losses Record

In September 2025, Treinen became the first major league player since at least 1912 to earn the loss in five consecutive Dodgers losses.

2007: Plays for Baker Wildcats

In 2007, Blake Treinen played junior varsity college baseball for the Baker Wildcats.

2008: Transferred to Arkansas

In 2008, Treinen transferred to the University of Arkansas but was not able to try out for the Arkansas Razorbacks baseball team.

2009: Transfer to South Dakota State

In 2009, Blake Treinen transferred to South Dakota State University and had to sit out the season due to NCAA transfer rules.

2010: Marlins Draft and Withdraw Offer

In 2010, the Miami Marlins selected Treinen in the 23rd round of the MLB draft, but withdrew their contract offer after an MRI revealed shoulder inflammation.

2011: Senior Year Performance

During his senior year in 2011, Treinen had a 7-3 win-loss record and a 3.00 ERA, reaching 97 mph with his fastball.

2011: Drafted by the Athletics

In 2011, Blake Treinen was selected by the Oakland Athletics in the seventh round of the MLB draft.

2011: Drafted by Athletics and Signs

In 2011, The Oakland Athletics selected Treinen in the seventh round of the MLB draft, and he signed, receiving a $52,000 signing bonus.

2012: "Subpar" Season with Stockton Ports

Blake Treinen described his 2012 season pitching for the Stockton Ports of the Class A-Advanced California League as "subpar" and "mediocre". He had a 4.37 ERA in 24 games.

January 2013: Traded to Nationals

In January 2013, Treinen was traded from the Athletics to the Washington Nationals in a three-team deal.

2013: Traded to the Nationals

In 2013, Treinen was traded to the Washington Nationals.

2014: MLB Debut

In 2014, Blake Treinen made his major league debut with the Washington Nationals.

2015: Volunteer Assistant Coach

From 2015 to 2020, Treinen was a volunteer assistant coach for the Whitman College Blues baseball team in Walla Walla.

2015: Late-Game Situations and Fastest Pitch

In 2015, Treinen started in the Nationals bullpen and began being used in late-game situations. He reached 100 mph with his sinker and threw his fastest MLB pitch at 101.32 mph in May.

February 2016: Treinen's sinker on Jeopardy!

In February 2016, Treinen's sinker was featured as a clue on Jeopardy!.

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2016: Improved Performance and Postseason Debut

In 2016, Blake Treinen posted a 2.28 ERA and improved against left-handed batters. He led the National League in groundballs induced and made his first playoff appearance, earning a win and a loss in the NLDS. He was described as going from "puppy dog to bulldog."

July 16, 2017: Traded Back to Athletics

On July 16, 2017, Blake Treinen was traded back to the Oakland Athletics, along with Sheldon Neuse and Jesús Luzardo, as the Nationals sought to upgrade their bullpen. At the time of the trade, Treinen had a 5.73 ERA and 3 saves.

2017: Named Nationals' Closer, then Demoted

In 2017, Blake Treinen was named the Nationals' closer to start the season but was removed from the role on April 19 due to poor performance, with a 7.11 ERA.

2017: Return to Oakland

In 2017, Treinen was traded back to the Oakland Athletics after losing his closer role with the Nationals.

2018: All-Star Selection

In 2018, Blake Treinen was selected as an All-Star.

2018: First 100 mph Pitches Since 2018

In 2021, at the start of the season, Blake Treinen threw his first 100 mph pitches since 2018.

June 21, 2019: Placed on Injured List

On June 21, 2019, Treinen was placed on the 10-day injured list with a right shoulder injury, leading to him losing his closer role to Liam Hendriks.

December 15, 2019: Signed with Dodgers

On December 15, 2019, Treinen signed a one-year, $10 million contract with the Los Angeles Dodgers.

2019: Lost Closer Role

In 2019, Blake Treinen lost the closer role for the Oakland Athletics.

2019: Arbitration Case Won

In 2019, Treinen won his salary arbitration case, resulting in a $6.4 million salary for the season.

2020: Volunteer Assistant Coach

From 2015 to 2020, Treinen was a volunteer assistant coach for the Whitman College Blues baseball team in Walla Walla.

2020: Joins Dodgers and Wins World Series

In 2020, Blake Treinen joined the Los Angeles Dodgers and won the World Series.

2020: World Series Champion with Dodgers

In the shortened 2020 season, Treinen appeared in 27 games for the Dodgers and won the World Series with them, recording a save in Game 5.

January 2021: Re-signed with the Dodgers

In January 2021, Blake Treinen re-signed with the Los Angeles Dodgers for a two-year, $17.5 million contract with a team option for a third year.

2022: Contract Extension Despite Injury

In 2022, despite a shoulder injury, the Dodgers signed Treinen to a one-year extension for 2023 with a conditional option for 2024.

2023: Did Not Pitch Due to Surgery

In 2023, Treinen did not pitch due to undergoing right shoulder labrum and rotator cuff repair surgery. However, the Dodgers picked up his $1 million option for 2024.

2024: Dodgers Championship

In 2024, Blake Treinen pitched on the World Series championship team with the Los Angeles Dodgers.

2024: Returns from Injury and Signs Extension

In 2024, Blake Treinen returned from injury, posting a 1.93 ERA over 50 games, and then signed a two-year, $22 million contract to remain with the Dodgers on December 10.

2024: Option Picked Up

In 2024, the team picked up Blake Treinen's $1 million option, though he had not pitched in 2023.

2025: Another Dodgers Championship

In 2025, Blake Treinen pitched on the World Series championship team with the Los Angeles Dodgers.

2025: Struggles and Injuries

In 2025, Treinen struggled with a 5.40 ERA and had a stint on the injured list due to forearm tightness. In September, he had a streak of five consecutive losses. His struggles also continued in the postseason.