Billy Seidl is a rising star in professional baseball and on Instagram. He is from the United States. He plays for the Kannapolis Cannon Ballers, a Minor League Baseball team that is also the White Sox’s Single-A affiliate. The White Sox picked Billy in the 2022 draft. So, what else do you know about him?
Billy Seidl became more famous after he started dating Brielle Biermann. Brielle is a famous American reality TV star and social media star. In February 2024, the two became engaged. This is everything you need to know about the American athlete.
Billy Seidl’s profile summary
| Full Name | William Seidl |
| Gender | Male |
| Date of birth | 9 November 1999 |
| Age | 24 years old (as of 2024) |
| Zodiac sign | Scorpio |
| Place of birth | Newton, Massachusetts, United States, |
| Current residence | Newton, Massachusetts, United States, |
| Nationality | American |
| Ethnicity | White |
| Religion | Christianity |
| Sexuality | Straight |
| Height in feet | 6’0” |
| Height in centimeters | 183 |
| Weight in pounds | 220 |
| Weight in kilograms | 100 |
| Hair colour | Dark brown |
| Eye colour | Dark brown |
| Father | Randy Seidl |
| Mother | Janet |
| Siblings | 3(Shannon, Tommy, Philip) |
| Relationship status | Engaged |
| Boyfriend | Brielle Biermann |
| Education | St. Sebastian’s School, Duke University |
| Profession | Professional baseball player, Instagram star |
| Net worth | $250 thousand |
Who is Billy Seidl?
Billy is a pro baseball player in the United States and a star on Instagram. He was born in Newton, Massachusetts, USA, on November 9, 1999. That makes him 24 years old in 2024. Billy Seidl’s mom and dad are Janet and Randy Seidl. His dad is the CEO of Sales Community, which is a top IT sales company.
Seidl had two brothers, Tommy and Philip, and a sister named Shannon. They all grew up together. Tommy is a baseball player at Harvard University. Billy went to St. Sebastian’s School and then Duke University, where he graduated in 2022.
Billy Seidl’s Early Life
William Randall Seidl, also known as Billy Seidl, was born on November 9, 1999, in Newton, Massachusetts. He had three siblings: two brothers, Tommy and Philip, and a sister named Shannon. His family respected both academics and sports. His parents, Randy (Randall) Seidl and Janet Seidl, have always been listed as important people who helped him grow up. Sources say that Randall and Janet are his parents and that his siblings have also played sports.
He went to secondary school at St. Sebastian’s School in Needham, Massachusetts. Seidl was not only making a name for himself on the baseball field during that period, but he was also doing well in school. He got good grades all the time and was in the National Honor Society. He was good at a lot of different sports. He pitched and played quarterback in football, and he got letters in both sports all four years. With his right arm, he was one of the best high school relievers in Massachusetts.
The Seidl family does more than just cheer him on in his sports growth. In 2019, St. Sebastian’s dedicated a Seidl Family Baseball Field to memorialize Tommy and Billy’s experiences and help future players. This was a symbolic gift from Randy and Janet. That dedication shows how close the family has been to Billy’s journey, from his early days in local leagues to the brink of professional baseball.
Professional career
He started playing baseball and football when he was in high school. Billy played baseball and was the quarterback for his school’s football team. The standout went on to pitch for Duke University in college baseball from 2019 to 2022. In 2021, Seidl helped the Duke Blue Devils baseball team win its first ACC baseball title since 1961.
The Chicago White Sox picked him in the 15th round of the July 2022 Minor League Baseball Draft. Two months later, he was given a job with the Kannapolis Cannon Ballers, a Minor League Baseball team in the Carolina League and the Single-A affiliate of the Chicago White Sox. The American star is also a rising Instagram model. He usually posts adorable photographs of his job and family on his unofficial Instagram account. At the time of writing, he had more than 12,000 followers.
Billy Seidl Transition to Professional Baseball
Billy Seidl’s professional career began in 2022, when the Chicago White Sox picked him in the 15th round (461st overall) of the MLB June Amateur Draft. He agreed to a $100,000 signing bonus when he signed with the White Sox on July 25, 2022. The first few years in the minors are very important. Seidl originally played in the Arizona Complex League for a brief time, then he was sent to the Kannapolis Cannon Ballers, a Class A team.
In 2023, he played the whole season with Kannapolis, focusing on his command, endurance, and pitch sequencing against professional hitters. He has had to deal with the standard problems of minor league life over time, like long bus rides, changing rosters, injuries, and the continual pressure to do well. As of March 2025, he was no longer with the Winston-Salem Dash, a higher minor league team. This means he is at a crossroads in his career.
In 90 minor league games, he has a 10–7 record, a 4.39 ERA, 113 strikeouts in 110.2 innings, and a WHIP of 1.36. These numbers suggest that he has had some success but still needs to improve to go up. His release doesn’t completely lock the door; a lot of players come back into the system through independent leagues, new organizations, or rehabs after their mechanics have been fixed.
Billy Seidl Financial Picture and Net Worth Estimates
It’s hard to say how much a minor league athlete is worth, but there are a number of public sources that give ranges for Billy Seidl’s net worth. One estimate puts him at between $100,000 and $250,000 in 2024. Another source puts his value closer to $100,000, saying that most of his money has come from his contract and signing bonus, and he hasn’t had many chances to make money through endorsements yet.
According to contract databases, his official deal with the White Sox was for one year and $100,000, with the signing bonus (also $100,000) being the main guaranteed payment. This means that his total known professional earnings through 2025 are about $100,000 (basic salary plus signing bonus). Of course, smaller bonuses, per diems, minor league stipends, and short-term deals may contribute a little more, but the public record is limited.
Seidl’s net worth is still low for a professional athlete because he hasn’t yet made it to the major leagues or signed any big endorsement deals. But the early foundation contract pay, bonus, and minor league salary provide him a base to work from. If he keeps climbing and gets more recognition, he might be valued more because of the extra money he could make from sponsorships, appearances, or media possibilities.
The Role of Family: Parents, Siblings, and Support
Billy Seidl’s story would not be complete without his parents, Randall (“Randy”) and Janet Seidl. Their help with money, emotions, and logistics has given him a solid basis from which to pursue competitive aspirations. The fact that they donated or paid for the Seidl Family Baseball Field at his high school shows that they were more than just passive fans.
His brothers and sisters also show that baseball is a big part of their family life. Tommy Seidl, his older brother, played college baseball at Harvard and then moved to Alabama before joining independent league circuits. That approach shows that the siblings have a close relationship based on shared goals, a shared awareness of the grind, and maybe even informal mentoring. Billy probably stayed grounded because of his siblings, who were going through a lot of changes and had high expectations.
The public data doesn’t show the family’s private finances, corporate holdings, or outside revenue, although the Seidl name does pop up in local and high school sports (like the field contribution). The fact that they are there shows that the family has connections and resources outside of sports that can help Billy navigate the uncertain professional world.
Billy Seidl Key Highlights, Milestones, and Challenges
There are a few times along Seidl’s trip that show both his potential and the problems he needs to solve:
- High School Success: He won all seven of his starts as a junior and was voted the league’s Most Valuable Player and Most Valuable Pitcher. That made him a more appealing recruit and put him among the best high school pitchers in Massachusetts.
- College Record and Exposure: He had 89 strikeouts in less than 70 innings across two seasons at Duke, even if his ERA wasn’t as consistent. This showed that he could swing and miss.
- Signing and Minor League Entry: Getting a $100,000 signing bonus from the White Sox in 2022 was a clear hint that a major league team was serious about the player.
- MiLB Performance: He had a 4.39 ERA, struck out 113 batters in 110.2 innings, and had a WHIP of 1.36 during his time in the minor leagues. These stats show that the pitcher has had both good and bad games and has to keep making adjustments.
- Roster Release in 2025: The organization’s choice to let him go from the Winston-Salem Dash in March 2025 marks a fresh turning point. This could be because of performance, space on the roster, or strategic choices, but it shows a test of perseverance.
Seidl needs to work on his command (keeping walks and home runs to a minimum), learn how to throw good secondary pitches, stay healthy, and show that he can be consistent. As is often the case with young pitchers, making changes to their mechanics, their mental state, and how they deal with tougher opposition will be very important.
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Final word
Seidl is a young American baseball player and Instagram star. He plays for the Kannapolis Cannon Ballers, a Minor League Baseball team that is also the White Sox’s Single-A affiliate. Billy is currently seeing Brielle Biermann. They got engaged in February 2024.
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