Gallen rejected the Diamondbacks' one-year, $22.025 million qualifying offer Tuesday, Jon Heyman of the New York Post reports.

EDGE Analysis

The decision was anticipated, and Gallen will now seek a multi-year contract on the free-agent market. If he departs Arizona, the Diamondbacks will receive a draft pick as compensation. Gallen posted a career-worst 4.83 ERA in 2025, but he had a career 3.29 ERA with a 26.6 percent strikeout rate coming into the season. The 30-year-old should have little trouble landing a lucrative multi-year contract.

The Diamondbacks extended a one-year, $22.05 million qualifying offer to Gallen on Thursday, Jeff Passan of ESPN.com reports.

EDGE Analysis

Gallen is coming off the worst season of his MLB career. His 4.83 ERA, 15 losses, 8.2 K/9 and 1.5 HR/9 were all career worsts. The right-hander turns 30 next August. Though it's unclear just how large the market will be for Gallen after a down year, he could decline the qualifying offer in hopes of securing a long-term deal. If he goes elsewhere, Arizona would receive draft compensation.

Gallen (13-15) allowed six runs (five earned) on seven hits and three walks while striking out three over 4.1 innings to take the loss versus the Padres on Friday.

EDGE Analysis

A Fernando Tatis grand slam in the fourth inning flipped this game in the Padres' favor. Gallen was pushed back a day after dealing with fatigue stemming from an illness in recent weeks, but his final start of 2025 was reflective of his year as a whole. The right-hander finished the season at a career-worst 4.83 ERA while adding a 1.26 WHIP and 175:66 K:BB over 192 innings through 33 starts. He also gave up a career-high 31 homers, which is an area the 30-year-old will need to improve in if he is to get back on track in 2026.

Gallen's next start was pushed back a day to Friday in San Diego due to fatigue/illness, Jody Jackson of Bally Sports Arizona reports.

EDGE Analysis

It was Gallen's turn Thursday versus the Dodgers, but he's dealt with an illness during his last two starts that's sapped his strength. His performance in those outings appeared unaffected, as the righty yielded four runs with a 15:3 K:BB over 13 innings, but the Diamondbacks nonetheless made the decision to give Gallen an extra day of rest. Jalen Beeks is opening and Nabil Crismatt is slated for bulk relief Thursday.

Gallen (13-14) allowed three runs on four hits and two walks while striking out nine over seven innings to earn the win Saturday over the Phillies.

EDGE Analysis

The nine strikeouts were the most Gallen has had in a start since July 7 versus the Padres. This was his sixth quality start in his last seven outings, and it was the first time he's completed seven frames since July 1 against the Giants. Gallen is ending the year strong, though his early struggles are evident in his 4.70 ERA and 1.24 WHIP through 187.2 innings. Gallen also allowed 30 homers in a season for the first time in his career when he gave up a solo shot to Alec Bohm in the fourth inning, giving Gallen the third-most homers allowed by a qualified starting pitcher this season. The right-hander's regular season is projected to come to a close with a home start versus the Dodgers next week.

Gallen (12-14) allowed one run on two hits and a walk while striking out six over six innings to earn the win over the Giants on Monday.

EDGE Analysis

Gallen was stingy despite throwing just 57 of 96 pitches for strikes, with the lone run on his line being the result of a Casey Schmitt solo home run in the third inning. This was Gallen's fifth quality start in his last six outings, the lone exception being his five-run appearance in San Francisco last week. Gallen is now at a 4.73 ERA, 1.25 WHIP and 163:61 K:BB across 180.2 innings over 31 starts this season, though he has a 2.68 ERA in 53.2 innings through his last nine outings. He's projected for a tough home start versus the Phillies this weekend.

Gallen (11-14) allowed five runs on five hits and three walks while striking out three over 6.2 innings to take the loss versus the Giants on Tuesday.

EDGE Analysis

Gallen had shaky command in the first inning and served up a three-run home run to Willy Adames. He mostly settled in after that but didn't get enough run support to overcome the early misstep. This was his longest start since he tossed seven innings against the Giants on July 1. Gallen is now at a 4.84 ERA, 1.28 WHIP and 157:60 K:BB through 174.2 innings over 30 starts. He's now up to 28 homers allowed this year, though he's gotten that issue largely under control with just five of those long balls coming over his last nine outings. Gallen is projected to make his next start in a rematch at home versus the Giants early next week.

Gallen (11-13) picked up the win Wednesday, allowing four hits and a walk over six scoreless innings in a 2-0 victory over the Rangers. He struck out five.

EDGE Analysis

The veteran righty continues a late-season turnaround, delivering his sixth quality start in seven trips to the mound since the beginning of August. Over that stretch, Gallen has a 4-1 record with a 2.20 ERA, 1.05 WHIP and 33:10 K:BB through 41 innings. He'll look to keep rolling in his next outing, which is scheduled to come on the road early next week in San Francisco.

Gallen (10-13) allowed two hits and three walks while striking out eight over six shutout innings to earn the win over the Dodgers on Friday.

EDGE Analysis

Gallen has steadied his season with a strong August -- this was his fifth quality start in six outings for the month. It was just the second scoreless outing of the season for Gallen, who also ended a three-game winless stretch with the effort. A big part of his recent success has come from limiting home runs -- he's given up just three long balls over his last seven starts, spanning 41 innings. On the year, he's now at a 4.94 ERA, 1.30 WHIP and 149:56 K:BB through 162 innings across 28 starts. The right-hander is projected for a home matchup versus the Rangers next week.

Gallen allowed one run on four hits and one walk over six innings while not factoring into the decision in Sunday's 6-1 loss to the Reds. He struck out seven.

EDGE Analysis

The Arizona right-hander impressed over this 95-pitch outing, as he tallied a quality start for the fourth time out of his last five appearances. The only blemish on Gallen's line came in the sixth when Noelvi Marte lashed a run-scoring triple -- the only extra-base knock Gallen conceded. Despite an ugly 5.13 ERA and 1.31 WHIP across 156 total innings, the 30-year-old has pitched better since the All-Star break, producing a 4.39 ERA, 1.15 WHIP and 31:8 K:BB over 41 frames. Gallen lines up for a difficult test in his next start, which currently lines up to come on the road against the Dodgers next weekend.