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Sabermetrics
Sabermetrics, from SABR, is the statistical analysis of baseball coined by Bill James in 1980; it produced OPS, FIP, wOBA, and WAR and entered MLB mainstream via the 2002 Oakland Athletics and Moneyball.
Sachiko Ito
Sachiko Ito (伊藤幸子, born 1975, Nagoya) is a Japanese softball infielder for Toyota Motor who won gold at the 2008 Beijing Olympics, silver at the 2002 and 2006 World Championships, and Asian Games golds in 2002 and 2006.
Sacramento River Cats
Sacramento River Cats, Triple-A Pacific Coast League affiliate of the San Francisco Giants at Sutter Health Park, West Sacramento; moved from Vancouver Canadians in 2000; three Triple-A titles; shared with the Athletics 2025-27.
Sadaharu Oh (王貞治)
Sadaharu Oh (王貞治), born 1940, Yomiuri Giants first baseman; world professional record 868 career home runs, 2,786 hits, .301 average; flamingo one-legged stance; 2006 World Baseball Classic winning manager.
Saki Yamazaki
Saki Yamazaki (山崎 早紀), Japanese softball outfielder born 1991, plays for Toyota Motor; won gold in women's softball at Tokyo 2020 and at the Jakarta-Palembang Asian Games, batting .500 with two home runs at the 2019 Japan Cup.
Salt Lake Bees
Salt Lake Bees: Triple-A Pacific Coast League affiliate of the Los Angeles Angels in South Jordan, Utah, playing since 2025 at The Ballpark at America First Square; formerly the Salt Lake Buzz, with the Utah Dirty Sodas alternate identity.
Salvador Pérez
Salvador Pérez (Salvador Johan Perez), Venezuelan catcher for the Kansas City Royals since 2011; 2015 World Series MVP, record 48 HR by a primary catcher in 2021, Royals captain, and a Hall of Fame case shaped by negative framing metrics.
Sam Landry
Sam Landry (born 2003) is an American professional softball pitcher in the AUSL, first overall pick of the 2025 College Draft by the Volts, now with the Portland Cascade after pitching for Louisiana and Oklahoma.
Sammy Sosa
Sammy Sosa, Dominican MLB right fielder (1989-2007); 609 home runs, 1,667 RBIs, .273 average; only player with three 60-homer seasons; 1998 NL MVP; Cubs record 545 HR; 2003 corked-bat suspension; Cubs Hall of Fame 2025.
San Antonio Missions
San Antonio Missions: Double-A Texas League baseball team in San Antonio, Texas, San Diego Padres affiliate since 2021, playing at Nelson W. Wolff Municipal Stadium since 1994; charter Texas League member city since 1888, planning a downtown ballpark by 2028.
San Diego Padres
San Diego Padres, MLB National League West franchise founded in the 1969 expansion, also called the Friars. Two pennants (1984, 1998), no World Series title, plays at Petco Park since 2004, sold in 2026 for a record $3.9 billion.
San Diego Stadium
San Diego Stadium (later Jack Murphy, Qualcomm, SDCCU Stadium) was a 1967 multi-purpose stadium in Mission Valley, San Diego, home of the Chargers, Padres, and SDSU Aztecs; demolished 2020–21 and replaced by Snapdragon Stadium.
San Francisco Firebells
San Francisco Firebells, WPBL women's pro baseball team (2026-), named for Lillie 'Firebelle Lil' Hitchcock Coit; best 10-5 inaugural record, lost first championship 3-2 to LA Queens.
San Francisco Giants
San Francisco Giants, MLB National League West franchise founded 1883 as the New York Gothams, renamed Giants in 1885, moved to San Francisco in 1958; 23 NL pennants, eight World Series titles, home Oracle Park.
Sandy Alomar Jr.
Sandy Alomar Jr. (Santos Alomar Jr.), born 1966 in Salinas, Puerto Rico, is a former MLB catcher, 1990 AL Rookie of the Year and Gold Glove winner, six-time All-Star with the Cleveland Indians, now Cleveland's first-base and catching coach.
Sandy Koufax
Sandy Koufax (Sanford Koufax), born 1935, Brooklyn-born left-handed Dodgers pitcher 1955-1966; three Cy Youngs, five straight ERA titles, four no-hitters including a 1965 perfect game, youngest Hall of Fame inductee (1972), retired at 30 with arthritis.
Satchel Paige
Satchel Paige (Leroy Robert Paige, 1906-1982), American pitcher, Negro Leagues star, oldest MLB rookie at 42 with Cleveland in 1948, pitched in MLB at 59, first Negro Leagues Hall of Fame electee in 1971.
Satoko Mabuchi
Satoko Mabuchi (馬渕 智子), Japanese softball player born 1982 in Nagoya; won gold in women's softball at the 2008 Beijing Olympics and Asian Games golds at Doha 2006 and Guangzhou 2010.
Savannah Bananas
Savannah Bananas: independent pro baseball team founded by Jesse and Emily Cole in Savannah, Georgia, in 2016. Plays Banana Ball (two-hour games, inning points, fan foul-ball outs) in the six-team Banana Ball Championship League; first international games in Canada and Mexico in 2027.
Save (baseball)
Save (SV), baseball statistic for a relief pitcher who finishes a winning game under set conditions; devised by Jerome Holtzman in 1959, official in MLB since 1969; companion stats blown save (1988) and hold.
Sayaka Mori
Sayaka Mori (森 さやか), born 1988, Japanese softball outfielder for Bic Camera; won gold with Japan in women's softball at Tokyo 2020, beating the United States 2-0 in the final. Distinct from sprinter and runner namesakes.
Scott Brosius
Scott Brosius (born 1966, Hillsboro, Oregon), nicknamed Bro, MLB third baseman for Oakland (1991-97) and the Yankees (1998-2001); 1998 World Series MVP, 1999 Gold Glove, three World Series titles, later Linfield head coach.
Scott Hatteberg
Scott Hatteberg (born 1969) is a former MLB catcher turned first baseman (1995-2008, Red Sox, Athletics, Reds) famous for the 2002 walk-off homer in Oakland's AL-record 20th straight win and as the Moneyball on-base-percentage case study.
Scott Rolen
Scott Rolen (born 1975, Evansville, Indiana) is a Hall of Fame third baseman (Phillies, Cardinals, Blue Jays, Reds, 1996–2012), eight-time Gold Glove winner, 1997 NL Rookie of the Year, elected to Cooperstown in 2023 with 76.3% of the BBWAA vote.
Scott Spiezio
Scott Spiezio (born 1972, Joliet, IL) is a former MLB switch-hitting utility infielder who played 12 seasons with Oakland, Anaheim, Seattle, and St. Louis, won World Series with the 2002 Angels and 2006 Cardinals, and tied the postseason RBI record with 19 in 2002.
Scranton/Wilkes-Barre RailRiders
The Scranton/Wilkes-Barre RailRiders, known as the Scranton/Wilkes-Barre Yankees until 2012, are a Triple-A International League team in Moosic, Pennsylvania, and the New York Yankees' affiliate since 2007.
Seals Stadium
Seals Stadium: 1931 baseball park at 16th and Bryant streets, San Francisco; home of the PCL San Francisco Seals and Mission Reds, then the Giants 1958-59; demolished November 1959, site now Potrero Center.
Sean Burroughs
Sean Patrick Burroughs (1980-2024), American third baseman; 1992-93 Little League World Series champion, 2000 Sydney Olympic gold medalist, Padres first-round pick, seven MLB seasons (.278, 12 HR); died of fentanyl intoxication.
Sean Gilmartin
Sean Patrick Gilmartin (born 1990, Thousand Oaks, CA) is an American left-handed pitcher, 2011 Braves first-round pick (28th) from Florida State, Mets Rule 5 pick who debuted April 10, 2015, and pitched for the Mets, Orioles, and Rays through 2020.
Sean Keys
Sean Thomas Keys (born 2003) is an American baseball first baseman, designated hitter, and outfielder for the Toronto Blue Jays, drafted in 2024 out of Bucknell University.