At the Big Ten baseball tournament, the playing of the national anthem has been an interesting evolution through the years. I started attending the first year it was in Omaha. In the early years, it was only played before the first game of the day and always before the championship game (occasionally a Saturday game would get moved to Sunday morning due to weather throughout the tournament, so they would play it before both the delayed game and the championship). Then the Kaepernick et al kneeling protests began, and the following spring, the national anthem was played before each game. This has co ntinued ever since with a few exceptions: when games were running late either due to extra innings, a ton of pitching changes, or weather (usually occurs on the days when four games are scheduled (the first two days)).
Not saying I agree one way or another, just find it interesting how it has evolved and the exceptions that are made (whether on purpose or by accident, I don't know).