I've been doing simulations since 2018 and have found that the four semi-finalists are usually in the top six to seven projected teams, and more often than you might think, I project the four semi-finalists perfectly. There are surprises sometimes and a mid-pack team overachieves and advances, that is why the matches are played on the courts and not on a computer. Still, it is interesting to do these simulations and see how the projections do.
Why do these simulations you ask? The primary reason is that the format for USTA League Nationals is now a flight-less random round-robin where each team plays four other random opponents. This introduces significant variations in schedule strength, the possibility of an undefeated team not making the top-4, and teams vying for the top-4 perhaps not having played head-to-head and unfortunate tie-breakers being used. The simulations aim to educate folks on how it all works and look at what may happen. Also see this write-up for some things to know about Nationals.
Like I've done in recent years, I'll be primarily just giving the data from the simulation and not writing a bunch of words. Most of it is self-explanatory, but the favorites and contenders will be listed in alphabetical order. The strengths are based on played averages. Contact me if you want to learn more.
First up this week, the 40 & Over 4.0 Men.
Chance of 4 undefeated: 7.7%
Chance of 5 undefeated: <1%
Toughest / easiest schedule: 3.95 / 3.88
Favorites: New England, SoCal, Southern
Contenders: Caribbean, Midwest, NorCal,
There are three favorites, but the three contenders are close behind, and a fair number have a chance. A full 10 teams have a better than 15% chance of making the semis.
There are five teams with a better than 24% chance of going 4-0 so that record will probably happen, but there could be a big tie at 3-1 for the last spot.
The four most likely semi-finalists all have a 10+% chance of winning it all, but just two of those are better than 20% with Southern the most likely.
What do you think? Will Southern win it?





