Pat Rapp arrived in South Florida in 1993, a right-handed starter from the Giants in the expansion draft to help build the Marlins’ rotation. Though he later became a journeyman across leagues, he demonstrated durability during the franchise’s early years, providing essential support for a growing expansion team.

Rapp had his best season in 1995, posting a 14-7 record and an excellent 3.44 ERA. He demonstrated complete control of the mound on September 18, 1995, when he authored a one-hit shutout against the Rockies at Coors Field, a rare achievement that remains one of the most dominant pitching performances in the ballpark’s high-altitude history.

Following a poor 1996 season, he was traded back to San Francisco during the 1997 Season, with Rapp going 37-43 with the Marlins.

Oft-injured with the Toronto Blue Jays, Al Leiter bolted from the Jays as a Free Agent in 1996 for the sunnier skies of Florida.  It was there that he was finally healthy and showed what he was capable of all along.

In 1996, he had his most successful year in professional baseball, posting 16 wins and a career-low ERA of 2.93. On May 11, he demonstrated exceptional command of the mound by pitching a no-hitter against the Rockies, a significant milestone for the young franchise. That summer, he achieved a historic milestone by earning his first All-Star selection, demonstrating that when in optimal health, his specialized "cutter" and high-velocity pitches were among the most effective in the senior circuit.

Leiter reached his peak in team success during the 1997 championship. His regular-season stats dipped, 11 wins and an ERA over 4.30, but he was a key part of Jim Leyland’s rotation. He became a postseason hero in the 1997 World Series, notably pitching six innings of two-run ball in Game 7 against Cleveland, helping the Marlins stay competitive for a late-inning rally.

Like so many 1997 Championship Marlins players, Leiter was part of the biggest baseball fire sale until the team did it again after their 2003 Title.  He was traded to the Mets, though he returned as a Free Agent for an ineffective year in 2005.  

With the Marlins, Leiter won 30 Games against 28 Losses with a 4.07 ERA.

Henderson Alvarez arrived in Miami as a central piece of the massive 2012 trade with Toronto, a young right-hander with a heavy sinker and a flair for the dramatic. While his residency in South Florida was ultimately cut short by the recurring fragility of his shoulder, he operated with a specialized efficiency that made him, for a brief window, the most dominant arm in the rotation.

After missing the first half of 2013 due to shoulder inflammation, Alvarez achieved his peak performance on the season's last day. He delivered a masterful no-hitter against the Detroit Tigers, a remarkable feat that ended with him in the on-deck circle as the Marlins secured a 1-0 victory on a walk-off wild pitch. That afternoon, he demonstrated complete control over his sinker, requiring only 99 pitches to set a new record.

In 2014, Alvarez was an All-Star who finished with a 12-7 record and a 2.65 ERA. Known for efficiency, he led the National League with three shutouts and had an elite ability to induce ground balls. During his peak, he was a reliable starter, ranking sixth in NL ERA, showing he was more than a one-time success. He set a historic record by becoming the first MLB pitcher to throw three consecutive shutouts in interleague play.

After being named the 2015 Opening Day starter, the recurring shoulder problems ended his season after just four ineffective starts. The organization declined to offer him a contract for 2016, and while he reached a brief plateau of a comeback with the Phillies in 2017, his high-velocity era was effectively over.  With the Marlins, Alvarez had an even record of 17-17 with a 3.28 ERA.

The Marlins plucked Antonio Alfonseca, a right-handed prospect plucked from the Montreal Expos organization in the minor league phase of the draft. While he was physically unique, possessing six fingers on each hand due to polydactyly, he operated on the mound with a heavy, specialized sinker that made him one of the most polarizing closers of his era.

In 1997, Alfonseca achieved team success as a rookie with 6.1 scoreless postseason innings, helping the Marlins win their first World Series. He demonstrated mastery of his sinker in subsequent years, reaching a career-high in 2000, with 45 saves that summer, earning the Rolaids Relief Man Award. Despite a rise in ERA (4.24) and WHIP (1.51), he was a high-leverage clutch pitcher, often escaping trouble to secure wins.

The following year, Alfonseca recorded 28 saves in 2001 despite back pain. In early 2002, the organization traded him to the Chicago Cubs in a six-player trade including Matt Clement and Dontrelle Willis.  He would, however, return in 2005 for one final brief stint.

Alfonseca had 102 Saves for the Marlins and finished 193 Games.