[imnotreal]

For the ten-team schedule, I was thinking that the first nine games are Fri-Sun, off Mon, Tue-Sun, all as a single-game series against the other teams in the league. Then the three-game series format begins and last 36 series/108 games, and upon the conclusion of that, there is a final section of nine games across ten days where teams play the reverse fixture of the start of the season (e.g., Team 1 @ Team 2 on Opening Day, then Team 2 @ Team 1 in the final 9 games of the season). However, it's worth noting that I was mostly just thinking of a way to get a weekly schedule & regular days off with that number of games, so if there's a modification that makes schedule-building easier for you, feel free to make it.

For the four-team, you are of course absolutely correct. My inclination would be to move to two-game series for the whole thing, with each team playing one series against each other every week and Monday always off.

I'm also realizing that I didn't mention start times for any of them; that's not particularly important (I'm usually not managing) but if you haven't started the four- and ten-team schedules yet, weekend day games would be appreciated. Thank you for the work/help!