Website Manager

San Mateo Little League American

Local Rules

We've added some local rules and clarifications to complement the Little League® Official Rules, with input from the SMLLA Board and our Divisional Commissioners.

To see the complete of set of local rules, refer to the SMLLA Local Rules document.

 

Table of Contents

  • Rest Threshold
  • Courtesy Runner
  • Quick Reference On-field Rule Book
  • Player Pool
  • Bat types
  • Field Prep and Scorekeeping Duties

Rest Threshold

In Little League, there is a maximum limit for the number of pitches allowed, whereas SMLLA has a rule that lowers this maximum limit even further. The pitch count determines how many days of rest are required before said player may pitch again.

Additionally, Little League has rules for players that pitch and catch in the same day.

  • Any Player who has played Catcher in any part of 4 innings that day cannot Play Pitcher
  • Any Pitcher who delivers 41 or more pitches that day, cannot play Catcher
  • If a player plays Catcher for 3 innings or less, moves to the pitcher position, and delivers 21+ pitches, they may not return to the catcher position in the same day.

For more information on Little League's Rest Thresholds, see the Official Little League Rest Thresholds page.

Courtesy Runner for Pitcher and Catcher

When there are two outs, a courtesy runner will be permitted for the pitcher and catcher in the next inning, using the last recorded out. However, in PCL, Minors, Cal, and Single A leagues, if the time limit is reached and the current inning is the last inning, no courtesy runner will be allowed. This rule applies to the catcher only in Single A.

Quick Reference On-field Rule Book


Majors

PCL

Minors

Cal

Single A

T-Ball

Wiffle

Coaches & Staff








Certified on-field coaches allowed

3

3

3

4

4

1 Manager + helpers

1 Manager + helpers

Coaches allowed in outfield

No

No

No

Yes

Yes

Yes

Yes

Game Time Limits








Time limit

None

No new inning after 1:50

No new inning after 1:50

No new inning after 1:50

No new inning after 1:50

3 innings or 1 hr (no inning after 0:50)

3 innings or 30 min

Pitching Rules








Pitching format

Kid pitch

Kid pitch

Kid pitch

Coach/Kid hybrid

Coach pitch

N/A

N/A

Pitcher distance

46'

46'

46'

42'

N/A

N/A

N/A

HBP → batter to 1st

Yes

Yes

Yes

Coach pitch: No; Kid pitch: Yes

No (spent pitch)

N/A

N/A

March pitch limit

50

50

50

Coach pitch

N/A

N/A

N/A

April pitch limit

65

65

50

40 pitches or 2 innings

N/A

N/A

N/A

May pitch limit

85

85

50

N/A

N/A

N/A

Walks allowed?

Yes

Yes

Yes

No

No

N/A

N/A

Other pitching rules




Strikes carry over after coach enters

5-pitch rule

N/A

N/A

Fielding / Defensive Play








Minimum defensive innings

3

3

4

4

4

N/A

N/A

Minimum infield innings

1 (unless safety opt-out)

1

1

2

2

N/A

N/A

Sitting rule

Everyone sits once before anyone sits twice

Same

Same

Same

Same

N/A

N/A

Outfielders allowed

3

3

3

4

4

Unlimited

Unlimited

Infield Fly Rule

Yes

Yes

No

No

No

N/A

N/A

Outfielders allowed to record outs at bases

Yes

Yes

Yes

Yes

No (infielders only)

N/A

N/A

Base Running








Steal 2nd & 3rd

Yes

Yes

Yes

No

No

N/A

N/A

Steal Home

Yes

No

No

No

No

N/A

N/A

Overthrows

No limit

No limit

1 base

1 base

1 base

Free advancement

Free advancement

Dead ball occurs when…

LL rules

Pitcher in circle

Pitcher in circle

Pitcher foot in circle

Infielder holds ball above head

N/A

N/A

Scoring & Run Limits








Run limit per inning

None

5 first 3

5 first 3

5 first 3

5 first 5

All batters single; last batter HR

All batters HR

Unlimited runs begin

4th

4th

4th

6th

Mercy rule (10 after 4)

Yes

Yes

Yes

Yes

No

No

No

Special Gameplay Rules








Bunting allowed

Yes

Yes

Yes

No

No

No

No

Dropped 3rd strike

Yes

No

No

No

No

N/A

N/A

Slash bunting

Allowed (cautioned)

No

No

No

No

No

No


Majors

To ensure clarity, the Majors Commissioner documented the clarification of Little League and Local Rules (Majors rules).

T-Ball

Given the uniqueness of T-ball, the rules have been summarized in the SMLLA T-ball Rules Summary.   

Player Pool

SMLLA uses a "Player Pool" to assist teams with a shortage of players on game days, preventing forfeits or rescheduling. Managers can request Pool Players from the SMLLA Player Agent for upcoming games.

Rules around using player pool kids.

  1. Email Player Agent an your Commissioner as soon as you know. 
  2. Please don’t grab a pool player without going through the Player Agent & Your Commissioner

Please include the following information in your email request:

  1. How many players you need?  
    1. Rules allow for 2 pool players to get to 9 or 10.  If you have 6 or less players you will need to reschedule.
    2. You do not get to reschedule a game just because you don’t have your best players – if you have 7 players, we will get you two pool players.  Please don’t reschedule games for this reason – this is not a fair or ethical way to play a game.  Email Andrew Armstrong and your commissioner to reschedule.  Rescheduled games will be sent to our UIC (Brett Nakamoto) so he can manage the umpires.
  2. Team Name, Opponent, Date of Game, Division
  3. You can start with 9 and end with 8.  Even if you have a player for one pitch and they run off the field, that counts.
  4. You can request a pool player with 9 to get to 10, especially if you are worried your 9th won’t show.  If they are sick or on the bubble than I recommend having 10 so we aren’t scrambling when you have 8 at the game.

Please don’t request a specific player.  We have the draft lists.  Asking for your best friend, or a specific player to fill a position, or any other reason is not needed.  We will get you a body.  There will be times we have to grab a player last minute and it might not be a fair match but again, we will do everything possible to get you a player vs. forfeiting or rescheduling. 

Remember:  While we understand the frustration of not having your best players, our goal is to get your game in. We will always find a player for you.  Please don’t be upset if it isn’t an equal replacement.  The goal is to get your game in, not to try to win a game using a pool player.  If that happens, great, but your players should come first.  While we aim to get players around the talent you are missing, often times they are busy and we have to take players of lesser talent.

Guidelines for having a pool player:

  1. Player wears their own team uniform
  2. Player bats last
  3. Two innings in the infield max 
  4. Player should sit out first, before your own team (if you have 10)
  5. Player can’t pitch or catch
  6. If they are coming from a game or have one immediately after your game, go easier on them in warm ups so as not to wear them out
  7. Once you request a player, and they arrive at the field, they are to play.  We don’t send a pool player home if a child you didn’t think was coming shows up. 
  8. Email the Player Agent and your Commissioner after the game so we know they played and we will mark it on our document.  We try to rotate kids as often as possible.  It is possible a kid might get asked several times before another child – we try to match kids on talent, some teams need pool players often while other teams don’t.  It will never be an even system but we will rotate turns within the confines of the talent needed to replace your missing players.  And of course who is available. 

Remember to encourage your kids to sign up and participate in more baseball! The more, the merrier.

Once we secure a player for your team, we will email you and the parent.  You can let them know what time to arrive, the field, ask what position the child is comfortable playing, etc.  Please work with your team to welcome and cheer on this child. 

Bat Types

Little League Baseball® adopted the USA Baseball bat standard for mandated use effective January 1, 2018. All players in Majors and below ages 4-12 must have a bat with the USA logo. See the USA Bat website for more information.

For our Juniors Division, ages 13 and 14, bats meeting the Batted Ball Coefficient of Restitution (BBCOR) standard may be used in the Intermediate (50-70 field) Division and Junior divisions (54-80 field). USA Bats may also be used at this level.

Field Prep and Scorekeeping Duties

  • The home teams are responsible for field preparation both before and after the game. Please refer to the Trinta Field Prep Manual for details.
  • Visiting teams are in charge of scorekeeping and managing the booth. For detailed information on scorekeeping requirements, please refer to the Scorekeeping Requirements.

San Mateo Little League American

P.O. Box 5603 
San Mateo, California 94402
Email : [email protected]
Copyright © 2026 San Mateo Little League American  |  Privacy Policy |  Terms of Use  |  License Agreement |  Children's Privacy Policy | 
  Log In