You can play variations of tag, sharks and minows etc, that cause girls to utilize all major muscle groups and joints so they are ready to go and don't require the whole stretching routine during short breaks during tournaments. It is nice on long days to get a full stretching routine in late in the day.
My pre-game routine is usually always the same and requires 60 minutes. I will adjust that as necessary on days where we play a lot of games. So if it is just the second game of the day, I would probably still meet 60 minutes before hand. For example if we are on game 4 their bats should be hot and they don't need every station.