I run some stats on the entire Denver Metro area men Adult leagues, here is the summary:
2.5 total - 35 / moved up - 21 (60.0%)
3.0 total - 354 / moved up - 47 (13.3%; 3 players moved from 3.0 to 4.0)
3.5 total - 1085 / moved up - 56 (5.2%; 1 player moved from 3.5 to 4.5)
4.0 total - 1167 / moved up - 75 (6.4%)
4.5 total - 456 / moved up - 13 (2.9%; 1 player moved from 4.5 to 5.5)
5.0 total - 116 / moved up - 6 (5.2%)
The stats are probably a little off because some players played up in a league and were bumped to match the league's level. I.e. some of the year-end 3.5 players who played 3.5 league were actually 3.0 at the start of the year. This would account for no more than a couple of percentage points though, and likely substantially less than that.
There was no movement down to speak of... it's a bit harder to determine but I'm certain that no more than 1% of all players were moved down, at any NTRP level.
Last year as you know USTA manipulated the NTRP algorithm to generate a big bump-up across the board... for example, 30% of all 3.5 players nationally were moved up; even higher percentages for 3.0 and 2.5. It looks like this year the pendulum swung the other way. I wonder whether 5-6% up-movement for 3.5 - 5.0 levels is within the "normal" (pre-2009) range? It looks like this year USTA tweaked the algorithm to nearly eliminate any movement (except at 2.5 and to a lesser extent 3.0).
2.5 total - 35 / moved up - 21 (60.0%)
3.0 total - 354 / moved up - 47 (13.3%; 3 players moved from 3.0 to 4.0)
3.5 total - 1085 / moved up - 56 (5.2%; 1 player moved from 3.5 to 4.5)
4.0 total - 1167 / moved up - 75 (6.4%)
4.5 total - 456 / moved up - 13 (2.9%; 1 player moved from 4.5 to 5.5)
5.0 total - 116 / moved up - 6 (5.2%)
The stats are probably a little off because some players played up in a league and were bumped to match the league's level. I.e. some of the year-end 3.5 players who played 3.5 league were actually 3.0 at the start of the year. This would account for no more than a couple of percentage points though, and likely substantially less than that.
There was no movement down to speak of... it's a bit harder to determine but I'm certain that no more than 1% of all players were moved down, at any NTRP level.
Last year as you know USTA manipulated the NTRP algorithm to generate a big bump-up across the board... for example, 30% of all 3.5 players nationally were moved up; even higher percentages for 3.0 and 2.5. It looks like this year the pendulum swung the other way. I wonder whether 5-6% up-movement for 3.5 - 5.0 levels is within the "normal" (pre-2009) range? It looks like this year USTA tweaked the algorithm to nearly eliminate any movement (except at 2.5 and to a lesser extent 3.0).