The current CBA below. Also, I didn't realize a tie All-Star game after 9 is settled by HR Derby.
(17) The All-Star break will contain four days, during which
time Club championship season games shall not be played.
Notwithstanding the preceding sentence, one game per season may be scheduled on the Thursday following the Tuesday on which the
All-Star Game is played, provided that (i) no Club shall be scheduled more than once for this game during the term of the Basic
Agreement; (ii) the game must be scheduled no more than one time
zone away from the time zone in which that seasonâs All-Star Game
is played; and (iii) there is no Sunday night game immediately prior
to the All-Star Game. Further, any workout scheduled by a Club for
the off-days immediately following the All-Star Game shall be voluntary. No game on the Sunday night prior to the All-Star Game
shall be played in a location more than one time zone from the location of that yearâs All-Star Game and no Club shall be scheduled to
play the Sunday night prior to the All-Star Game more than once
during the term of the Basic Agreement, except to the extent necessary to fulfill existing contractual or promotional commitments;
provided however, that in no circumstance shall a Club be required
to play such a Sunday night game in two consecutive years or more
than twice during the term of the Basic Agreement.