Zach Agnos

Zachary George Agnos (born August 15, 2000) is an American professional baseball pitcher for the Colorado Rockies of Major League Baseball (MLB). He played college baseball for the East Carolina Pirates as a two-way player. The Rockies selected Agnos in the 10th round of the 2022 MLB draft, and he made his MLB debut in 2025.

Zach Agnos
Colorado Rockies – No. 36
Pitcher
Born: (2000-08-15) August 15, 2000 (age 24) Haymarket, Virginia, U.S.
Bats: Right Throws: Right
MLB debut
April 20, 2025, for the Colorado Rockies
MLB statistics (through July 22, 2025)
Win–loss record	1–3
Earned run average	5.83
Strikeouts	17
Stats at Baseball Reference
Teams
Colorado Rockies (2025–present)

Early life and amateur career

Agnos was born in Reston, Virginia, and attended Battlefield High School. He lettered all four years as a two-way player (shortstop and pitcher). In 2020, he began attending East Carolina University as part of the Pirates baseball team. He also majored in business management.

During the pandemic-shortened 2020 season, he appeared in 17 games, slashing .246/.333/.277. Defensively, he did not commit an error in 34 chances, and he appeared as a right-handed relief pitcher in two games in which he did not allow a hit. ^[1]

As a sophomore, Agnos played third base and appeared in all of the Pirates 61 games. He finished the season with a .268/.397/.439 slashline, including six home runs and 16 doubles. As a pitcher, Agnos finished the season with a 20.25 ERA in only 2.2 IP. ^[2]

That summer, he played for the Bourne Braves of the Cape Cod Baseball League. While with the Braves, Agnos hoped to focus on pitching. He had asked manager Harvey Shapiro to pitch throughout the summer, but Shapiro had been hesitant to do so in an effort to rest Agnos' arm. However, the 0.2 innings Agnos threw in the Braves' final game caught scouts' attention as his fastball clocked between 93-95 mph.^[3][4]

When he returned to East Carolina, it was to focus on pitching in addition to his work as an infielder. In 2022, Agnos slashed .330/.405/.479. That total included seven home runs, 15 doubles, and a total of 88 hits. He was named a second-team All-American as a utility player by Baseball America and D1Baseball. ^[5] His pitching ERA dropped to 2.31 in 23.1 IP as he became more comfortable as a pitcher later in the season. ^[6] Agnos would play short for most of the game in the infield, do a quick warmup with the third baseman, and then take the mound to close the game.^[7]

Professional career

Agnos was drafted as a pitcher by the Colorado Rockies in the 10th round, with the 296th overall selection, of the 2022 Major League Baseball draft. He received a $165,000 signing bonus.^[8]

Agnos began working his way through the Rockies farm system with the Low-A Fresno Grizzlies in 2023. During his debut season, Agnos earned a 2.06 ERA with a 1.01 WHIP, 11.7 K/9 rate, and 2.2 BB/9 rate in 52+1⁄3 innings with 27 saves (which led Minor League Baseball).^[9] He was also named a California League All-Star. ^[10]

In 2024, Agnos began the season with the High-A Spokane Indians. In 24+2⁄3 innings across 21 games, he earned a 0.73 ERA and 0.69 WHIP with a 10.9 K/9 rate, 0.7 BB/9 rate, and 10 saves.^[11] In June, the Rockies promoted Agnos to the Double-A Hartford Yard Goats, where he posted a 1.95 ERA in 27+2⁄3 innings pitched. He finished the season with a combined 1.38 ERA across High-A and Double-A in 36 outings with 51 strikeouts.^[12]

Agnos was assigned to the Triple-A Albuquerque Isotopes to begin the 2025 season. On April 20, 2025, Agnos was selected to the 40-man roster and promoted to the major leagues for the first time and made his debut the same day.^[13] On June 10, Agnos took the mound in the top of the ninth inning with a three-run lead over the San Francisco Giants for the save opportunity. He subsequently served up a solo home run to Casey Schmitt to start the inning, then issued three walks to surrender the 5-2 lead and was officially charged for the blown save, losing the game 6-5.^[14] The next day, Agnos was again called to the mound in a relief effort with a 6-3 lead in the 8th inning, but was charged with a second blown save as the Rockies lost again to the Giants 10-7.^[15]