add guidance for pregame warmups

docs/03-playing-rules.md

@@ -21,6 +21,16 @@ These rules shall *not* incorporate the following rules of Major League Baseball
 ## Pre-Game Meeting
 Before first pitch, the Managers and the umpire-in-chief shall conduct a pre-game meeting. A Manager may designate a team delegate to attend on the Manager’s behalf. At this meeting, the teams shall exchange lineups and review any applicable ground rules with the umpire.
 
+## Pre-Game Warmups
+As a general pre-game guideline, teams should plan for about 20 to 30 minutes of total defensive warmup time (i.e. an infield/outfield routine), counted from when the first team starts, and distributed evenly as practically as possible. The visiting team will usually go first, and the home team will usually take the final turn before the pre-game meeting and first pitch. For fields where a batting cage is available, the team not using the field should make use of the batting cage while the other team finishes its defensive warmups.
+
+Managers may agree to reverse the order or adjust the timing if that works better for both teams.
+
+!!! Examples
+      For a game starting at 9:30 am at a field with a batting cage, the visiting team might perform their infield/outfield routine from about 9:00 to 9:15 while the home team uses the batting cage. The teams would then switch, with the home team taking the field from about 9:15 to 9:30 and the visiting team using the cage or bullpen until first pitch.
+
+      For a game starting at 6:15 pm at a field with a batting cage, the home team might start offensive warmups in the batting cage at 6:00 pm. Because there are 15 minutes before first pitch, they take approximately 7.5 minutes for offensive warmups while the visiting team uses the field for their defensive infield/outfield routine. The teams would then switch, with the home team taking the field from about 6:07 to 6:14 and the visiting team using the cage until first pitch.
+
 ## Regulation Games
 Games played under the auspices of both recognized Managers of the participating teams shall count as official. A regulation game is defined as follows
 

docs/summary-of-changes.md

@@ -24,6 +24,7 @@
 ### Playing Rules
 
 - Playing Rules now focus on on-field competition only, with administrative topics moved into League Policy.
+- Pre-game warmup guidance has been added for  field sharing, batting cage use, and a suggested 20-to-30-minute overall warmup window counted from when the first team starts.
 - The Playing Rules expressly incorporate the Official Baseball Rules unless a League exception applies.
 - The draft clarifies which modern MLB rules are not adopted by description, including limits on position-player pitching, shift restrictions, extra-inning automatic runners, pitch clocks, disengagement limits, the three-batter minimum, per-game mound visit limits, mandatory 18-inch bases, and replay/specialized-equipment rules.
 - The League now has a clear rule hierarchy: League Policy controls first, then Playing Rules, then incorporated MLB rules.
@@ -31,4 +32,4 @@
     - Regular-season flexibility is preserved through the Expanded Lineup Format, allowing unlimited Extra Hitters, shared batting positions, free defensive substitution, Designated Runners, and Courtesy Runners.
     - Postseason play is treated more formally through the Restricted Lineup Format, which excludes shared batting positions and uses stricter substitution rules.
 - Minimum-player rules have been clarified: teams must start when both have one fewer than the required batting positions, short spots are outs, and teams falling below the minimum forfeit.
-- Collision, injury substitution, Designated Runner, Courtesy Runner, and umpire-dispute rules have been rewritten for clarity and consistency with incorporated baseball rules.
+- Collision, injury substitution, Designated Runner, Courtesy Runner, and umpire-dispute rules have been rewritten for clarity and consistency with incorporated baseball rules.