2017 USTA League Year-End Rating Analysis - Bump Up/Down Percentages - Interesting Tennis League Stats

With the 2017 USTA League year-end ratings having been published about 24 hours ago, I'll be doing a sequence of blog entries analyzing what happened this time around.

To start, lets look at the high level bump up/down percentages.

Across all players that had a C rating at the end of 2016 and 2017, 8.6% were bumped up and 4.6% were bumped down.  This means that 86.8% stayed the same.

That isn't a whole lot of bumps either way, and is pretty close to last year and 2015 as well.  So it doesn't appear, nationally at least, that there was much of a shake-up.

Breaking it out by section, we see the following.

There aren't a lot of sections wildly out of whack with the national average.  Caribbean had the highest percentage bumped up, just under 11%, and Hawaii had the fewest right around 7%.  Northern California had a perhaps surprisingly high number of bump downs at around 5% and New England had the fewest under 4%.

Stay tuned, I'll be breaking things out by gender and level soon.