Jerry Koosman, Former All-Star 1969 Miracle Mets Pitcher, Dies at Age 83

Jerry Koosman, the former All-Star left‑hander who helped the 1969 Miracle Mets win the World Series, died Sunday at 83. He had been ill for roughly a year and passed away in Osceola, Wisconsin, surrounded by his children.

Koosman's Impact on the Miracle Mets

In 1969, the Mets shocked baseball by climbing from a losing record to a 100‑62 finish, topping the National League East. As the No. 2 starter behind Tom Seaver, Koosman posted a 17‑9 record with a 2.28 ERA. He earned the decisive final out of the World Series, a moment captured in a famous photograph of him leaping onto catcher Jerry Grote at Shea Stadium.

Mets’ Historic Season

The franchise, founded in 1962, had never recorded a winning season before 1969. A ten‑game winning streak in September propelled them into first place, and they ultimately defeated the Baltimore Orioles in a seven‑game World Series. Koosman's Game 2 performance—allowing just one run over 8⅔ innings—gave New York a 2‑1 victory and set the tone for the comeback.

Career Overview

Across 19 major‑league seasons, Koosman compiled a 222‑209 record and a 3.36 ERA, throwing 140 complete games and 33 shutouts. For the Mets alone (1967‑78), he logged a 140‑137 record with a 3.09 ERA, including two 20‑game winning seasons. He was a two‑time All‑Star and finished second in NL Rookie of the Year voting behind Johnny Bench.

Post‑Mets Years

After the Mets traded him in December 1978, Koosman pitched for the Minnesota Twins, Chicago White Sox, and Philadelphia Phillies before retiring. He later returned to his hometown of Morris, Minnesota, where he was honored with a parade.

Personal Life and Legacy

Born in Appleton, Minnesota, on December 23, 1942, Koosman first played organized baseball while serving in the U.S. Army at Fort Bragg. He married LaVonne Sorum; the marriage ended in divorce. He is survived by sons Michael and Shawn and daughter Danielle.

Koosman's contributions to the Miracle Mets remain a defining chapter in baseball history, symbolized by his final‑out strikeout and the iconic celebration on the mound.

Sources: ESPN, The New York Times, MLB Trade Rumors.