1974 Topps #151 Diego Segui
About Diego Segui
Segui went to Boston from St. Louis on December 7, 1973, with Reggie Cleveland and Terry Hughes. The Cardinals received John Curtis, Lynn McGlothen and Mike Garman. His 1974 Topps #151 still listed St. Louis, although he pitched 58 games in relief for the Red Sox that season.
Diego Segui, a right-handed forkball specialist born in Holguin, Cuba, pitched in the majors from 1962 to 1977 for the Kansas City and Oakland Athletics, Washington Senators, Seattle Pilots, St. Louis Cardinals, Boston Red Sox, and Seattle Mariners. Signed by Cincinnati in 1958 and released that April, he was sold to the Athletics by Tucson in September and worked up their farm system before debuting on April 12, 1962. He finished 92-111 with a 3.81 ERA. He saved 71 games, struck out 1,298 batters and led the American League with a 2.56 ERA for Oakland in 1970. His only World Series work came in relief for Boston in Game Five of 1975, a series Cincinnati won in seven games. He is the only man to play for both Seattle franchises. He pitched in relief in the Pilots' first game in 1969 and took the loss in the Mariners' first game in 1977, the start that earned him the name 'the Ancient Mariner.' He later pitched a decade in the Mexican League and still holds the Venezuelan winter league career strikeout record. He was inducted into the Venezuelan Baseball Hall of Fame in 2003. His son David Segui also reached the majors. Segui died in 2025 at 87.
Sources: SABR BioProject · Baseball-Reference · National Baseball Hall of Fame · Baseball Almanac (1) · Baseball Almanac (2) · BaseballCardPedia
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 171 | 8 | 72 | 74 | 7 | 6 | 3 | 1 | 0 |
| SGC | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Graded population — a scarcity guide, not a price. Data as of 2026-10-19. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted.
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Related cards
Team card: #36 St. Louis Cardinals
More St. Louis Cardinals cards:
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- #60 Lou Brock
- #108 Al Hrabosky
- #175 Reggie Cleveland
- #204 1973 Stolen Base Leaders
- #209 Ted Sizemore
- #236 Cardinals Field Leaders
- #260 Ted Simmons
- #285 Reggie Smith
- #307 Luis Melendez
- #339 All-Star Pitchers
- #350 Bob Gibson
- #372 Ken Reitz
- #393 Orlando Pena
Frequently asked questions
What is the 1974 Topps #151 card?
It is card #151 of the 660-card 1974 Topps Baseball set, picturing Diego Segui of the St. Louis Cardinals.
How many cards are in the 1974 Topps Baseball set?
660 cards, tracked as 678 collectible states. Numbers run from 1 to 660 with none skipped, issued all at once as a single series and printed in equal quantities; 17 cards carry catalogued print variations that the master set counts separately - fourteen San Diego / "Washington Nat'l Lea." pairs (thirteen Padres player cards and the #226 team card), the three-state #599 Rookie Pitchers, the #608 Apodaco misspelling and the #654 Jesus Alou front without a position.
Sources: Trading Card Database, PSA CardFacts, BaseballCardPedia, Cardboard Connection, Baseball Almanac, Baseball-Reference, the SABR BioProject and the National Baseball Hall of Fame, PSA & SGC population reports. Card data compiled and maintained by T206Cards.com. Page last updated 2026-10-25.