Fulfilled a life-long dream of playing his first season in the Dominican Winter League during the 2023-24 season...Went a combined 1-0 with a 4.26 ERA (3 ER in 6.1 IP) in eight games with Águilas and Gigantes...CHECK THE I.D: At the time of his addition to the D-backs' 40-man roster in November 2022, was the youngest player (DOB 7/30/2001)…is now the third-youngest pitcher behind Cristian Mena (12/21/02) and Joe Elbis (9/24/02) heading in the 2025 season. FALL LEAGUER: Pitched for Salt River in the 2022 Fall League and was selected to the "Fall Stars Game" with D-backs' infielder Jordan Lawlar after posting a 2.35 ERA (2 ER in 7.2 IP) and 13 strikeouts... A CLASS ACT: Is a member of the 2020 graduating class from the D-backs' academic program, which has helped 108 Minor Leaguers in the organization to achieve their high school equivalence diploma since 2013... SUPERSTAR CAMP: Served as the celebrity coach in the D-backs' Superstar Baseball Camp in July 2024 at Chase Field for kids ages 7-12...Kids received a Martinez t-shirt and autographed poster, took a photo with him, participated in drills and instructional stations and finished the day with lunch...CHILDREN'S HOSPITAL: Visited Phoenix Children's Hospital in August 2024, with fellow pitcher, Eduardo Rodriguez.
2024
Named the D-backs' Rookie of the Year by the Arizona Chapter of the BBWAA after going 5-6 with eight saves, a 2.48 ERA (20 ER in 72.2 IP) and 91 strikeouts over 64 games in his second season with the D-backs...Ranked among NL relievers in HR/9.0 IP (fourth, 0.25), IP (fifth) and strikeouts (fifth) [min. 50 G]...Ranked among rookie relievers [min. 40 G] in strikeouts (third), saves (third), games (T-3rd), innings, (fourth), ERA (fifth) and wins (T-fifth)...His 10.7 barrel pct. [Exit Vel. 95 MPH+ with LA between 10-35 deg.] finished as the eighth lowest among relievers [min. 50 G]...Since Aug. 5, his 8 saves tied for seventh most in the NL (also: Porter Hodge/CHC and Kyle Finnegan/WSH)...Held lefties and righties to a .221 AVG…LHH went 23-for-104/.652 OPS with 39 strikeouts and RHH were 36-for-163/.571 OPS with 52 strikeouts...Held opponents with runners in scoring position to a .228 AVG (18-for-79)/.617 OPS with 16 walks, 31 strikeouts and only 1 extra-base hit (3B)...Hitters went 0-for-6 with bases loaded with 0 walks and four strikeouts...Did not give up a homer over his first 25 games (30.2 IP, 126 BF)…allowed just one homer over his final 38 games and his 0.22 HR/9.0 IP was the fifth lowest among relievers [min. 30 G] since July 4...Gave up one homer to righties (181 BF) and 1 to lefties (127 BF)...Led D-backs relievers in strikeouts for May (16), June (13) and August (24)...In 36 total one-inning appearances, faced the minimum 17 times...Opponents batted .098 (8-for-82) off his split finger (21.8% usage) with 58 strikeouts and a 54.0% whiff…off his slider (21.6% usage), opponents hit .178 (8-for-45) with a 45.1% whiff...Was scoreless in 19 of his first 20 games, going 2-0 with a 0.36 ERA (1 ER in 25 IP), opponent .147 AVG (15-for-86)/.476 OPS, 28 strikeouts and just one extra-base hit (2B)...During his 15 straight scoreless outings, boasted an opponent .209 AVG (14-for-67)/.517 OPS, eight walks and 23 strikeouts...Did not allow a hit until his fifth appearance...Allowed just 1 XBH (2B) in his first 25 games (30.2 IP, 126 BF). Was one of six relievers in the Majors in May with a 0.00 ERA [min. 10 games]…in 10 games (12.2 IP) went 1-0 with an opponent .239 AVG (11-for- 46)/.588 OPS, six walks and 16 strikeouts...Recorded his first career win on May 13 vs. Reds (W; 0 ER in 1.0 IP, 2 K)...Recorded his first career three-inning outing on May 30 @ Mets (0 ER in 3.0 IP, 2 K)…tossed his second three-inning game on July 4 @ Dodgers and recorded the win (W; 0 ER in 3.0 IP, 5 K)...Led D-back relievers in June in games (14), innings (15.2) and OPS (.525) [min. 10 games]...Led D-backs relievers in July with 14 appearances and was tied for second most in the NL (also: Robert Garcia/WSH) …his 17 strikeouts ranked tied for sixth among NL relievers...Recorded his second career save on Aug. 5 @ Guardians, his first since Aug. 17, 2023 @ Padres...Ranked among NL relievers in Aug. in strikeouts (second, 24), games (T-2nd, 14) and saves (third, 7)...GIVE 'EM THE HEATER: His 100.3 MPH AVG fastball in 2024 ranked first among NL relievers and third in MLB, behind Mason Miller/OAK (100.9) and Jhoan Duran/MIN (100.5) [min. 50 G]...Tossed 413 pitches of 100.0+ MPH in 2024 to lead the NL and rank second in MLB, behind Miller (503) and ahead of Emmanuel Clase/CLE (272)...His 100.3 MPH AVG fastball velocity was the second fastest by an NL rookie reliever since 2015, behind Jordan Hicks/STL (100.5)...His 102.9 MPH pitch to strike out Jake Bauers on Sept. 13, 2024 vs. Brewers (eighth inn.) was the fastest pitch thrown by a D-backs pitcher in the pitch tracking era (since 2008)...15-GAME STREAK: In 2024, recorded a career-high 15 straight scoreless appearances (19.0 IP) from May 3-June 14, going 2-0 with a 1.16 WHIP, opponent .209 AVG (14-for-67), 8 walks and 23 strikeouts.
2023
In his first season with the D-backs, went 0-0 with one save, a 12.60 ERA (14 ER in 10.0 IP) and 14 strikeouts over nine games...Spent most of the season with Triple-A Reno, going 2-1 with nine saves, a 4.20 ERA (23 ER in 49.1 IP) and 67 strikeouts in 47 games...Received his first call-up to the Majors on June 27 but did not make his debut before being optioned two days later...Made his Major League debut on July 7 vs. Pirates in his second stint with Arizona (two ER in 1.0 IP) and recorded two strikeouts...Recorded his first save on Aug. 17 @ Padres, striking out three over 1.1 innings...At age 22, became the second-youngest D-backs reliever to collect his first Major League save within his first five games (Byung-Hyun Kim, 20-130). During his save opportunity, posted a 102.7 MPH fastball...Limited right-handers to .192 (5-for-26) with eight strikeouts...Opponents hit .227 (5-for-22) with runners in scoring position...Threw his fastball 60.2 pct. of the time and averaged 100.5 mph per pitch...Hitters were 1-for-12 off his splitter with eight strikeouts and a 58.3 whiff percentage.
2022
Combined to go 3-2 with a 3.00 ERA (12 ER in 36.0 IP) in 18 games between High-A Hillsboro, Double-A Amarillo and Triple-A Reno....Began the season on the injured list (recovery from Tommy John surgery) …reinstated on July 22 and assigned to Hillsboro, going 1-2 with a 2.67 ERA (8 ER in 27.0 IP) in 13 games....Was promoted to Amarillo on Sept. 13 and after two appearances, was moved up to Reno on Sept. 20, where he made three appearances....Pitched for Salt River in the 2022 Fall League and was selected to the "Fall Stars Game" with Dbacks' infielder Jordan Lawlar after posting a 2.35 ERA (2 ER in 7.2 IP) and 13 strikeouts.
2021
Limited to seven starts with Low-A Visalia before undergoing season-ending Tommy John surgery on July 6…went 1-3 with a 6.65 ERA (17 ER in 23.0 IP) and 24 strikeouts.
2019
Combined to go 1-3 with a 2.89 ERA (18 ER in 56.0 IP) in 18 games with DSL D-backs 2 and the ACL D-backs.
