Miguel Ullola

Miguel Daniel Ullola (born June 19, 2002) is a Dominican professional baseball pitcher for the Houston Astros of Major League Baseball (MLB). He debuted in MLB in 2026.

Career Ullola signed with the Houston Astros as an international free agent on January 15, 2021. He spent his first professional season that year with the Dominican Summer League Astros and Florida Complex League Astros. He pitched 2022 with the Fayetteville Woodpeckers and 2023 with the Asheville Tourists. After the 2023 season, he pitched in the Arizona Fall League.

Ullola started 2024 with the Double-A Corpus Christi Hooks before being promoted to the Triple-A Sugar Land Space Cowboys and started 2025 with Sugar Land. In 28 appearances (23 starts) for Sugar Land, he compiled a 7–6 record and 3.88 ERA with 131 strikeouts across innings pitched.

On November 18, 2025, the Astros added Ullola to their 40-man roster to protect him from the Rule 5 draft. Ullola was optioned to Triple-A Sugar Land to begin the 2026 season. In his first 20 appearances (including 10 starts), he posted a 1–4 record and 5.48 ERA with 64 strikeouts and one save. On June 28, 2026, Ullola was promoted to the major leagues for the first time.