Foundation: KCMSBL follows Official Major League Baseball Rules unless otherwise noted in our MSBL National Rules or league-specific rules below.
National Rules: All league rules are based on the MSBL National and Tournament Guidelines (linked above). The rules below either replace or supersede the national guidelines for KCMSBL play.
Applicability: All rules are valid for regular and post-season play unless specifically noted.
Rules for ALL Leagues
1. Protests
- All protests require a $200 non-refundable fee paid prior to review
- If ruled in favor, a $200 credit will be applied to next season's fees
- Must be submitted by team manager via email to Commissioner and Co-Commissioner
- Reviewed by KCMSBL Board - all decisions are final
2. Modifications to Rules
- KCMSBL Board reserves the right to adjust rules as necessary
- All modifications posted immediately and communicated to League Directors
- In-season changes require unanimous vote by league managers
3. Code of Conduct
All individuals at KCMSBL events must:
- Adhere to KCMSBL and facility rules, regulations, and guidelines
- Act in a manner that properly represents KCMSBL
- Provide an environment devoid of discrimination and harassment
4. Ejections and Suspensions
- All ejections reported to KCMSBL Board by officials
- Board reviews each case individually to determine suspension length
- Non-rostered attendees ejected are barred from events for minimum two weeks
5. Time Limits
Regular Season:
- After 2:15, no new inning starts unless tied
- At 2:30, game is over (drop dead)
Playoffs:
- After 2:15, no new inning starts unless tied
- No drop dead time — playoff games must produce a winner
- If tied, the California Rule applies and repeats each inning until one team wins
Fall Ball:
- After 1:45, no new inning starts regardless if tied
- At 2:00, game is over
6. Mercy Rule
- Game ends if a team is ahead by 10 or more runs after 5 innings
7. Standings Tiebreaker
When two or more teams are tied in the standings, the following tiebreakers are applied in order:
- 1st: Head-to-head record between the tied teams
- 2nd: Runs allowed (fewer is better)
- 3rd: Run differential (runs scored minus runs allowed)
8. Ties - California Rule
How it works:
- Applied if tied after 7 innings or after 2:15 time limit
- Runner placed at second base (must be preceding batter in lineup)
- One out applied against offensive team
Regular Season: California Rule continues until 2:30 drop dead time — game may end in a tie
Playoffs: No drop dead time. California Rule repeats each inning until a winner is decided — playoff games cannot end in a tie
League-Specific Rules
65+ Wood Bat League
Start Date: May 12th
League Age Rules
- 65+ league with exemptions
- Age calculated by calendar year
- Each team allowed max 4 exemptions aged 60-64
- New players must be 64 to pitch
- All exemptions must be reported to and approved by League Office
Bunting
- NO bunting allowed
- If attempted: Dead Ball Strike (out with two strikes)
Stealing Bases
- Runners allowed to steal 2nd base only (not 3rd)
- On passed ball (ball leaving home plate circle), runners may advance
Batted Ball to Outfield
- Ball to outfield grass = batter awarded 1st base (cannot be thrown out)
- If batter rounds 1st base, can be thrown out
55+ League
League Age Rules
- Pitchers must be 55 years or older to pitch
- Each team allowed three players aged 50-54
- Players aged 50-54 are not allowed to pitch
Roster Requirements
- All teams must submit their roster to the website with birth dates
- Rosters must be kept up to date throughout the season
- August 1st: Rosters become final for playoffs
- Any exceptions require vote by 55+ managers and league commissioners
Courtesy Runners
- Courtesy runner must be the last out (not last batted out)
- Pitchers and catchers are always allowed a courtesy runner
- If a runner is replaced by either the last out or a pinch runner, they are not allowed to steal
- When a play is made on the courtesy runner by the defense, the courtesy runner has the option to stay on base or advance
45+ Scotty Matteson League
Exemptions
- Each team allowed two exemptions under age 45
- Exemptions must be 40 years old by opening day
- Exemptions must be 44 years old by opening day to pitch
35+ Charlie Holmes League
Exemptions
- Each team allowed three exemptions under age 35
- Exemptions must turn 30 by end of calendar year
- No pitching restrictions for exemptions
18+ Federal, Senior League, and Fall Ball
No league-specific rules (except Fall Ball time limit - see above)