I am pretty sure they exist amongst the forum. Looking to see charts on improvements from grade to grade and how hard it is to get from let’s say a green F to an A- etc.

not sure if this is still accurate... but its what i found from quite a while back

• Iguana1's BBIQ Practice Minute Chart: These are the ranges
  I've found based on the 4 seasons since the iq grading has
  changed.
  The number on the left assumes a "fast" learner. WE of 80 and
  GPA over 3.2. The number on the right is for a slower learner.
  WE around 40, GPA under 2.5.
  Of course there are extreme cases on both ends. I had a player
  with a WE of 11 that took about 20% longer than the second
  number.

  • F > D- 50-75
    D- > D 50-75
    D > D+ 50-75
    D+ > C- 50-75 total F > C- 200-300

  • C- > C 100-150
    C > C+ 100-150
    C+ > B- 120-200 total C- > B- 320-500 total F > B- 520-800

  • B- > B 290-400
    B > B+ 290-400 total B- > B+ 580-800 total F > B+ 1100-1600

  • B+ > A- 375-500
    A- > A 575-775
    A > A+ 450-625 total B+ > A+ 1400-1900 total F > A+ 2500-3500

• porkpower's Recruit FT Chart:

  • A+ 88.0% - 92.9% HS FT%
    A 83.8% - 86.8%
    A- 80.8% - 83.9%

  • B+ 77.9% - 82.1%
    B 74.6% - 77.7%
    B- 71.4% - 74.7%

  • C+ 68.3% - 72.0%
    C 65.3% - 68.7%
    C- 62.3% - 66.0%

  • D+ 59.2% - 63.3%
    D 56.8% - 59.8%
    D- 53.3% - 56.6%
    F 51.0% - 53.3

2010 was when that was re-posted. originally may have been way before that. i feel like this was back before potential.

i think i remembering right hat back then there was no limit to how good a player could get in any category... just a function of starting point, practice minutes and work ethic. seems weird... but thats the way i remember it.

Posted by oldave on 11/20/2019 10:58:00 PM (view original):
2010 was when that was re-posted. originally may have been way before that. i feel like this was back before potential.

i think i remembering right hat back then there was no limit to how good a player could get in any category... just a function of starting point, practice minutes and work ethic. seems weird... but thats the way i remember it.

your memory is correct, there used to be no limit, outside the 100 limit (A+ for FT). also playing time is part of that function.

to the OP's question - i suspect there is a chart or something out there better than what i can rattle off. roughly, i find that green is about 1 grade on average, definitely not 1 and 1/3rd on average - less. i think its pretty rare to see more than 1 and 1/3rd growth in FT. i think the odds of F to A+ are between 0 and 0.1%. but further, i think the odds of +2 grades is really low, at least under 2%?

roughly, i find that blue is about 2/3rds of a grade, maybe a tad more, and black is a little higher than 1/3rd, on average - maybe more like 1.5 thirds, probably a bit less - one and a third thirds? :) i think low ticks a little under 1/3rd of a grade left (between 0.5-1 thirds i would guess).

one and a third thirds
i know what youre saying... but it doesnt exactly roll off the tongue... does it? haha