| Diego Seguí | |
|---|---|
 Seguí in 1969 | |
| Pitcher | |
| Born:(1937-08-17)August 17, 1937 Holguín,Cuba | |
| Died: June 24, 2025(2025-06-24) (aged 87) Kansas City, Kansas, U.S. | |
Batted: Right Threw: Right | |
| MLB debut | |
| April 12, 1962, for the Kansas City Athletics | |
| Last MLB appearance | |
| September 24, 1977, for the Seattle Mariners | |
| MLB statistics | |
| Win–loss record | 92–111 |
| Earned run average | 3.81 |
| Strikeouts | 1,298 |
| Saves | 71 |
Stats atBaseball Reference  | |
| Teams | |
| Career highlights and awards | |
| |
| Member of the Venezuelan | |
 Baseball Hall of Fame | |
| Induction | 2003 |
Diego Pablo Seguí González (Spanish:[ˈdjeɣoˈpaβloseˈɣiɣonˈsales]; August 17, 1937 – June 24, 2025) was a Cuban professional baseball player. He played inMajor League Baseball (MLB) as a right-handedpitcher for theKansas City / Oakland Athletics,Washington Senators,Seattle Pilots,St. Louis Cardinals,Boston Red Sox, andSeattle Mariners. Seguí was aforkball specialist who was the 1970 American LeagueERA leader.[1]
Seguí was born inHolguín,Cuba.[2]
In 1970 with Oakland, Seguí went 10–10 with two saves in 47 appearances (19 starts) while leading theAmerican League pitchers with a 2.56ERA.[2]
On December 7, 1973, he was traded by St. Louis along withReggie Cleveland andTerry Hughes to the Red Sox in exchange forJohn Curtis,Lynn McGlothen, andMike Garman.[3]
Seguí holds the unique distinction of having pitched for both of Seattle's major league baseball teams, the Pilots and the Mariners, in the first game ever played by each franchise. In these contests, he earned ahold for the Pilots in1969, and absorbed the opening-day loss for the Mariners in1977.[4][5][6]
His most productive season came in 1969 for the Pilots, when he posted career-highs in wins (12) and saves (6), against only 6 losses.[2] At the end of the season, his teammates voted him the Pilots' Most Valuable Player.
After he started the Mariners' inaugural game in 1977, he was dubbed "theAncient Mariner," and, although he set a Mariners single-game record with 10strikeouts early in the season on May 5, he failed to get a win the rest of the way. After compiling a 0–7 record with two saves and a 5.69 ERA in 40 games (seven starts), he was released at the end of the season.[2]
Seguí continued pitching in theMexican League for another 10 years, tossing ano-hitter for theCafeteros de Córdoba during the 1978 season. During his Mexican stint, he amassed a 96–61 record with a 2.91 ERA and 1,025 strikeouts in 193 pitching appearances.[7]
Seguí also pitched with four teams in theVenezuelan Winter League during 15 seasons between 1962 and 1983. He posted a 95–58 record and a 2.76 ERA in 213 games, setting a league's all-time record with 941 strikeouts, to surpassAurelio Monteagudo (897) andJosé Bracho (748). This record is still unbeaten. He also ranks second in wins behind Bracho (109), third incomplete games (68), and is fourth both in ERA andinnings pitched (1249+2⁄3).[8]
Seguí was inducted into theVenezuelan Baseball Hall of Fame and Museum in 2003.[9] He also gained induction into theHispanic Heritage Baseball Museum Hall of Fame on August 19, 2006, inSan Francisco, California.[10] In 2024, he was given theNegro Leagues Beisbol Lifetime Achievement Award by theNegro Leagues Baseball Museum.[11]
His son,David Segui, is a former 15-season major leaguefirst baseman.[12]
Segui died on June 24, 2025, at the age of 87.[11][13] He is buried at Chapel Hill Funeral Home and Memorial Gardens in Kansas City.[14]
| Awards and achievements | ||
|---|---|---|
| Preceded by New team | Opening Day starting pitcher for the Seattle Mariners 1977 | Succeeded by |