null
Checklists › 1965 Topps Baseball › #197 Diego Segui

1965 Topps #197 Diego Segui

Kansas City Athletics · Pitcher · American League · Base set · Series 3 · Card #197 of 598
Position shown is where he played most in 1964, from that season's fielding records - not read off the card.
1965 Topps #197 Diego Segui, Kansas City Athletics
1965 Topps #197 Diego Segui card back
The back of #197 Diego Segui.

About Diego Segui

Segui's 1965 Topps card, #197, appeared in the set's third series. It came after the heaviest workload of his career: in 1964 he made 35 starts among 40 appearances for the Kansas City Athletics, logged 217 innings and struck out 155, yet finished 8-17 with a 4.56 ERA for a team that lost 105 games and landed tenth and last in the American League. The 17 defeats were a career high and they tell only part of it, since five complete games and two shutouts came out of the same summer.

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, 71 saves and 1,298 strikeouts, 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, pitching in relief in the Pilots' first game in 1969 and taking the loss in the Mariners' first game on April 6, 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, which brought him induction 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 · Baseball Almanac (1) · Baseball Almanac (2)

Graded population (PSA & SGC)

GraderTotal10987651-4Auth
PSA2511221276917870
SGC1001531000

Graded population — a scarcity guide, not a price. Data as of 2026-09-04. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted. The two checklist variations, #79 and #508, are listed under the wording PSA uses for each state.

Find this card

Search T206 Cards Shop 1965 Topps cards Live auctions Buy It Now on eBay Sold prices

As an eBay Partner Network affiliate, T206Cards.com may earn from qualifying purchases.

Related cards

Team card: #151 Kansas City Athletics

More Kansas City Athletics cards:

Frequently asked questions

What is the 1965 Topps #197 card?

It is card #197 of the 598-card 1965 Topps Baseball set, picturing Diego Segui of the Kansas City Athletics.

How many cards are in the 1965 Topps Baseball set?

598 cards, tracked as 600 collectible states. Numbers run from 1 to 598 with no gaps and no printed-number collisions, and two checklist cards - #79 and #508 - carry catalogued print variations that the master set counts separately.

Sources: Trading Card Database, PSA CardFacts, Cardboard Connection, BaseballCardPedia, 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 2026-10-11.