Is an avid golfer...Does everything left-handed, except for golf...His father, who is right-handed, taught him how to play...He and his wife, Alex, have a son who was born during the 2022 season...Callahan's middle name is Eugene, a nod to the University of Oregon, David's alma mater...They had a daughter during the 2024 season...Enjoys photography...Bought a Canon camera while he was in New York to sign his first pro contract to take photos of Central Park, which was near his hotel...After the birth of his son, bought an old-school film camera to take family photos...David John Peterson graduated from Regis Jesuit (Colo.) High School, where he earned first-team All-Continental League honors as a senior...Originally selected in the 28th round of the 2014 First-Year Player Draft by Boston but did not sign...Played three seasons (2015-17) at the University of Oregon...Recorded 273 career strikeouts and earned 19 wins in his collegiate career, ranking second and sixth, respectively, in school history...As a junior in 2017, earned first-team All-American honors by Collegiate Baseball, ABCA, D1Baseball, NCBWA and Perfect Game...Named to the All-Pac 12 First Team and named a semi-finalist for the Golden Spikes Award and Dick Howser Trophy...Set a single-season record with 140 strikeouts and tied for second in single-season wins with 11.
2025
Named to his first career All-Star Game after posting a first-half career-best 3.06 ERA and 93 strikeouts (previous: 3.09 ERA in 2024 and 84 K in 2022)...He threw a scoreless inning in the Midsummer Classic on July 15, becoming the first Met to do so since Jacob deGrom in 2019 and the first left-handed Mets pitcher to do so since Tom Glavine in 2004...Was a Gold Glove finalist...Handled all 37 of his chances in the field without making an error...No pitcher in the majors had more total chances while posting a 1.000 fielding percentage...Threw his second career complete game (his first nine-inning complete game), a shutout, on June 11 vs. Washington...Was the first Met to toss a shutout without issuing a walk since Jacob deGrom on April 23, 2021, also vs. Washington...Reached career-high marks in starts (30), innings (168.2), and strikeouts (150)...Finished third among qualifying Major League pitchers in home run rate (0.59 HR/9), tied for fourth in double plays induced (20) and sixth in groundball percentage (54.7).
2024
Tied a career-high with 21 starts and set new career bests in ERA (2.90), wins (10) and innings pitched (121.0)...Finished the season with a 10-3 record and a 2.90 ERA with 101 strikeouts...After July 1, he made 16 starts going 7-3 with a 2.68 ERA (28 ER/94.0 IP) with 33 walks and 81 strikeouts...In that span, he had the ninth-best ERA in the NL, tied for the second-most wins in the NL (seven), and completed the third most innings in the NL (94.0 IP)…He recorded 10 of his 12 quality starts in his final 16 starts...In 12 road starts, he finished with a 6-1 record and a 2.60 ERA (21 ER/72.2 IP)…He also struck out 50 batters and went seven-plus innings in four of those 12 starts...Compared to a 3.35 ERA (18 ER/48.1 IP) with a 4-2 record at home...He celebrated his 29th birthday on Sept. 3 vs. Boston...He became the 24th pitcher in Major League history to record 10 or more strikeouts on their birthday and is the first pitcher to do so since Gerrit Cole (15 Ks 9/8/19) with a double-digit strikeout performance on their birthday...Was the first Met to earn a win on his birthday since Dillon Gee (4/28/12) and was the 11th Mets pitcher to earn a win on their birthday...On Sept. 3 vs. Boston he set a career-high with 11 strikeouts in a single game...His previous career-high was 10 in a game which he had done four previous times, most recently on Sept. 15 vs. Cincinnati...Had a career-best five-game winning streak from May 29-June 22...During that nine game stretch he posted a 3.14 ERA (17 ER/48.2 IP), recording five wins and four no decisions with 23 walks and 36 strikeouts...Recorded the series-clinching save in Game 3 of the NL Wild Card Series, he became the first pitcher in franchise history to record his first career save in the Postseason...He became the 19th pitcher to have earned their first career save in the playoffs...Courtesy of Elias...Made five appearances with one start during the Mets' NLCS run...He finished with a 2.92 ERA (4 ER/12.1 IP) and recorded a win and a save.
2023
Following the season, underwent surgery to repair the labrum in his left hip...The procedure was performed on Nov. 6, 2023 at HSS in New York Surgery... Made a career-high 21 starts and went 2-8 with a 5.24 ERA (60 ER/103.0 IP) in those starts...In six relief appearances, went 1-0 with a 2.25 ERA (2 ER/8.0 IP).. Tallied a career-high-tying 10 strikeouts on Sept. 15, his first double-digit strikeout performance of the 2023 season... Set career highs in innings pitched (111.0), starts (21), and strikeouts (128)...Upon returning to the majors on June 27 after a stint with Syracuse (AAA), pitched to a 2-2 record with a 3.38 ERA (27 ER/72.0 IP) in 19 games, 13 of which were starts...Pitched to a 2-7 record before the All-Star Break, owning a 6.46 ERA (39 ER/54.1 IP) in 11 starts during that time...Following the All-Star break, pitched to a 1-1 record and a 3.65 ERA (23 ER/56.2 IP) in 16 games (10 starts)...Pitched to a 2.79 ERA (18 ER/58.0 IP) in 14 home outings (10 starts)...Over 13 road outings (11 starts) this season, the southpaw has pitched to a 7.47 ERA (44 ER/53.0 IP)...Limited lefties to a .238 (68-286) average in his career...He whiffed 35 of the 117 left-handed batters he faced this year, a 29.9 percent strikeout rate that ranked fourth among all left-handed starting pitchers to face a minimum of 90 LHB in 2023...Owned a 1.93 ERA (4 ER/18.2 IP) in the fourth inning, allowing just four runs over 20 fourth inning appearances...Held opposing batters to a .217 average (15-69) in the fourth...Posted a 10.38 SO/9 ratio with 128 strikeouts and 50 walks over 111.0 innings pitched...His SO/9 ratio ranked second amongst Mets starters this season, trailing only Kodai Senga (10.93)...Was his second-highest career mark (10.73, 2022)...His 12.03 SO/9 ratio was the fifth-best in the Majors from Aug. 27 through the end of the season (min. 30.0 IP).
2021
Missed the remainder of the season after being placed on the 10-Day Injured List on July 2...While recovering from right side tightness, the left-hander underwent surgery to repair a right foot fifth metatarsal fixation on July 27...Dr. Mark Darkos performed the surgery at the Hospital for Special Surgery...Went 2-2 with a 2.84 ERA (10 earned runs/31.2 innings) with 27 strikeouts in six starts at Citi Field...Tossed a quality start in five of his six outings at home...Allowed one earned run on three hits over 6.0 innings with 10 strikeouts on April 14 vs. Philadelphia without issuing a walk...Became the seventh lefthander in Mets history to strike out 10 or more and not issue a free pass...Averaged 9.31 strikeouts per inning, an increase from the total of 7.22 strikeouts per inning during his rookie campaign...All seven of Peterson's starts from April 27-June 2 came in games decided by one run...That was the longest streak in the Majors since 2017, when Jimmy Nelson (LAD) started seven one-run games in a row...The streak tied Ron Darling's (July 25-Aug. 27, 1988) for the longest by a Met.
2020
Led NL rookies and Mets pitchers with six wins...Ranked third among NL rookies with 49.2 innings pitched...Was eighth in that group with 40 strikeouts...Tied for the major league rookie lead in wins...Was eighth in the majors in innings pitched...Among rookies with 45.0 or more innings, Peterson was third in NL and fifth in the Majors with a 1.21 WHIP, third in the majors in ERA (3.44) and fourth in the majors in BAA (.202)…Is one of six rookies who finished a season as the Mets’ team leader in wins - Tom Seaver (16 in 1967), Jerry Koosman (19 in 1968), Mark Bomback (10 in 1980), Dwight Gooden (17 in 1984) and Dillon Gee (13 in 2011)…Courtesy of Elias...Was on the IL from Aug. 14 until Aug. 28 with left shoulder fatigue...Began the season at the team's Alternate Training Site and had his contract selected on July 28...In his final three starts to end the season, he surrendered just four runs in 18.0 innings with seven walks and 16 strikeouts, good for a 2.00 ERA...Earned the win in relief on Sept. 2 against the Orioles ...It marked the first win by a Mets reliever in a game in which he pitched at least four innings and was not charged with any runs since Aug. 5, 2009, when Nelson Figueroa (4.1 IP) was the winner in a 9-0 Mets victory over the Cardinals at Citi Field... Courtesy of Elias...Went 4-0 with a 2.93 ERA (nine earned runs/27.2 innings) with 13 walks and 23 strikeouts in five starts at night...This compared to a 2-2 record with a 4.09 ERA (10 earned runs/22.0 innings) with 11 walks and 17 strikeouts in five games (four starts) during the day...Recorded his first career double-digit strikeout game on Sept. 19 vs. Atlanta...Only three other Mets rookie LHP have produced 10 strikeouts in a single game: Hisanori Takahashi was the last to do it (July 31, 2010)...Pete Schourek did it in 1991...Jerry Koosman had four double-digit K games in 1968...Ranked seventh in the NL with a .202 (36-178) opposing batting average (min. 200 batters faced)...That included a .161 (5-31) mark vs. left-handed batters...Held opponents to a .171 (7-41) batting average with runners in scoring position, that was tied for the eighth-lowest mark in the majors among all pitchers at least 40 batters faced with RISP.
2019
Reached career-high marks in starts (24) and strikeouts (122) while spending the entire season at Binghamton (AA)...Spent time on the Minor League 7-Day Injured List with a lower back strain from July 18 (retroactive to July 17)-Aug. 3...Recorded a season-high 10 strikeouts in his last start of the year, Aug. 30 vs. Hartford.
2018
Was the Sterling Award recipient for Columbia (A)...Posted a 1.82 (12 earned runs/59.1 innings) in nine starts for the Fireflies before being promoted to St. Lucie (A)...Tossed a career-high 8.0 innings in his last start before his promotion....Did not allow an earned run over his final four starts of the season (23.0 innings)...Overall, had a 3.16 ERA (45 earned runs/128.0 innings) in 22 starts between Columbia (A) and St. Lucie (A)...Was named a mid-season South Atlantic League All-Star...Made 13 starts for the St. Lucie Mets (A) of the Florida State League...Went 6-6 with a 4.33 ERA (33 earned runs/68.2 innings) in those games...Was the Florida State League Pitcher of the Week for the week ending Sept. 3...Made one start that week, firing 5.0 shutout frames with nine strikeouts, no walks and just two hits allowed.
2017
In his first professional season, made three starts for Brooklyn (A) of the New York-Penn League... Allowed one run, earned, in 3.2 innings with six punchouts and one walk...After allowing an earned run on two hits in his first professional inning, pitched 2.2 scoreless frames over his next two starts with five strikeouts and one walk.
2022
Made a career-high 19 starts...Went 6-5 with a 3.86 ERA (39 earned runs/91.0 innings) as a starter...Went 1-0 with a 3.68 ERA (six earned runs/14.2 innings) in nine relief appearances... Limited lefties to a .176 average (15-85), which ranked sixth in the National League among southpaws (min. 75 LHB faced)... Allowed four or fewer earned runs in each of his first 18 starts, marking the fifth-longest such streak by a lefty and tied for the ninth-longest such streak in the majors... Recorded 126 strikeouts over 105.2 innings for a 10.76 SO/9 ratio, which ranked ninth in the National League and 14th in the majors among hurlers with at least 100.0 innings pitched... Struck out the 200th batter of his career on August 6 vs. Atlanta (Game 1), becoming the 10th pitcher in Mets history to reach 200 strikeouts in their first 43 games.
