Baseball · Official Rules of Baseball
Law 5: Pre-Game Procedures
2 parts · 2 tests · 20 facts · updated 27 October 2026 · markdown
Who delays or calls a game for the weather, the pre-game practice and bullpens, the rundown for each World Cup, the meeting at home plate and the line-up cards, ground rules, and security on the field.
5.51Field Condition and Practice
Delays for weather and lightning, the 30-minute wait, screens, bullpens and the pre-game practice times.
Test 1Weather, practice and the bullpensTake a test
The home team decides on a delay before the game; in a tournament the Technical Commissioners do.
Source: WBSC ORB 2025-2026, Rule 5.1 · recall
In tournament games the Technical Commissioners decide on suspending or cancelling, consulting the crew chief.
Source: WBSC ORB 2025-2026, Rule 5.1 · recall
In case of lightning the Technical Commissioners and crew chief consult the lightning guidelines of the LOC or league.
Source: WBSC ORB 2025-2026, Rule 5.1 · applied
A pitching screen must be provided by the LOC or the home team; a batting cage is only recommended.
Source: WBSC ORB 2025-2026, Rule 5.2.2 · recall
The rule recommends a first-base screen 8 feet high and 6 feet wide during batting practice.
Source: WBSC ORB 2025-2026, Rule 5.2.4 · recall
Each bullpen needs at least two mounds with regulation rubbers and home plates, in good condition.
Source: WBSC ORB 2025-2026, Rule 5.2.5 · recall
U-15: 30 minutes of batting practice for each team, then 10 minutes of infield each.
Source: WBSC ORB 2025-2026, Rule 5.2.6.2 · recall
Home before visitors, and batting practice before infield.
Source: WBSC ORB 2025-2026, Rule 5.2.6.3 · recall
The older the age group, the longer the practice: twenty, thirty, forty, then a combined fifty at the Premier12.
Source: WBSC ORB 2025-2026, Rule 5.2.6 · recall
Umpires may not call a game until at least 30 minutes after they suspended play; in a tournament the Commissioners decide.
Source: WBSC ORB 2025-2026, Rule 5.1 · applied
5.52Line-ups, Ground Rules and Security
The home-plate meeting, the line-up cards in triplicate, ground rules, crowd control and a field invasion.
Test 1The meeting at home plate, ground rules and securityTake a test
The plate umpire holds the meeting with both teams' representatives ten minutes before the scheduled start.
Source: WBSC ORB 2025-2026, Rule 5.3.1 · recall
He checks the copies match, keeps one, gives one to the opposing manager and one to the Technical Commissioners.
Source: WBSC ORB 2025-2026, Rule 5.3.2 · recall
Once the plate umpire has the identical copies, he is officially in charge of the game and the line-ups are official.
Source: WBSC ORB 2025-2026, Rule 5.3.2 · recall
The card lists each starter's name, uniform number and position, plus the pitcher and any designated hitter.
Source: WBSC ORB 2025-2026, Rule 5.5.3 · recall
Other potential substitutes should be listed, but failing to list a player does not make him ineligible.
Source: WBSC ORB 2025-2026, Rule 5.5.3 · applied
A ground rule needs the visiting team's agreement; where the teams do not agree, the umpires set it.
Source: WBSC ORB 2025-2026, Rule 5.4 · applied
Crowd control rests with the home team or the LOC, which must provide enough police protection to keep order.
Source: WBSC ORB 2025-2026, Rule 5.6 · recall
The home manager's batting order comes first, then the visitor's; then the plate umpire covers the ground rules and questions.
Source: WBSC ORB 2025-2026, Rule 5.5.1, 5.5.2, 5.3.3 · recall
Staff leave sixty minutes before, the meeting is ten minutes before, the cards become official there, then play starts.
Source: WBSC ORB 2025-2026, Rule 4.1, 5.3, 5.5 · recall
If the field is not cleared in a reasonable time, approximately 15 minutes after the refusal, the crew chief may forfeit the game.
Source: WBSC ORB 2025-2026, Rule 5.6 · applied
Sources
WBSC Official Rules of Baseball 2025-2026, Rule 5 (paraphrased in original wording; original questions authored from the Rules, not reproduced)
- WBSC ORB 2025-2026, Rule 5.14
- WBSC ORB 2025-2026, Rule 5.3.22
- WBSC ORB 2025-2026, Rule 5.5.32
- WBSC ORB 2025-2026, Rule 5.62
- WBSC ORB 2025-2026, Rule 5.2.21
- WBSC ORB 2025-2026, Rule 5.2.41
- WBSC ORB 2025-2026, Rule 5.2.51
- WBSC ORB 2025-2026, Rule 5.2.6.21
- WBSC ORB 2025-2026, Rule 5.2.6.31
- WBSC ORB 2025-2026, Rule 5.2.61
- WBSC ORB 2025-2026, Rule 5.3.11
- WBSC ORB 2025-2026, Rule 5.41
- WBSC ORB 2025-2026, Rule 5.5.1, 5.5.2, 5.3.31
- WBSC ORB 2025-2026, Rule 4.1, 5.3, 5.51