Frontier League Player Eligibility
Roster Size:
During the off-season, teams may have no more than thirty-four (34) players on their active roster. There is no classification limit for the off-season roster. Players signed out of the California Winter League or selected in the Frontier League Draft are exempt from the 34-player limit.
The Sunday prior to Opening Day, teams must be down to 28 players.
Regular season and playoff rosters will be composed of a minimum of 22 active players and a maximum of 24 active players.
Roster Parameters:
Regular season and playoff rosters will be composed of the following players:
- A minimum of 10 players of Professional-1 or Professional-2 classification
- A minimum of 6 players of Experienced-1 classification (adjusted down if more than 10 Professionals are on the roster)
- A maximum of 8 players of Experienced-2 or Veteran classification
- Up to two of these 8 players may be Veteran classification
Players without prior affiliated baseball (MiLB) experience must be at least 18 years old to play in the Frontier League.
- Players who complete a season at 24 years old or younger will be Professional-1 classification
- Players who complete a season at 25 years old will be no more than a Professional-2 classification
- Players who complete a season at 26 years old will be no more than an Experienced-1 classification
- Players who complete a season at ages 27-29 will be no more than an Experienced-2 classification
- Players who complete a season at 30 years old or higher will be a Veteran classification regardless of their prior experience.
- For all classification levels, a player's age as of September 30 will be used to determine the age portion of their classification.
Minimum Appearance Exception: A player must have accrued more than 75 at bats, 15 games pitched, or 30 innings pitched in a season for that season to count toward the classifications.
Military Exemption: Players who have served on active military duty will receive an exemption to the age limit for any classification of one year for each year of active duty that was served.
Position Change Exemption: Position players who are switching to pitching and pitchers who are switching to playing a position will have their classifications reset to Professional-1 provided that they do not appear in any games at their previous position (batting/running or pitching, depending on the switch).
The California Winter League is the official winter league of the Frontier League.
The Frontier League is proud to have extended our agreement with the California Winter League for a seventh season and to make the California Winter League the Official Winter/Showcase League of the Frontier League.
