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Tournament greens

• 1GrimReaper1 21 Posts

  Mon, Dec 14 2020 6:37 PM

  Hi folks 

  Could someone please explain what the figures are on tournament greens....(12.0) (10.0) etc are and how one should treat each respectively. 

  Probably like many a player there killing me as one moment say a (12.0) is either very fast or slow and only known once the mistakes are done.

  Thanks in advance 

  grim

• sammey1 700 Posts

  Mon, Dec 14 2020 10:31 PM

  Way to calculate putting power for specific green speeds:

   

  To get a speed factor you divide the number 9 by the green speed. 

  SLOW (7.4)...9 divided by 7.4 = 121.6% (roundup to 122) 

  STANDARD (7.9)...9 divided by 7.9, = 113.9% (114)

  FAST (9) ...9 divided by 9, which is simply one to one, or 100%

  VERY FAST (10)...9 divided by 10, = 90% 

  TOURNAMENT (11.)...9 divided by 11, = 81.8% (82)

  TOURNAMENT (12)...9 divided by 12, = 75%

  TOURNAMENT (13)...9 divided by 13 which is 69.23% (69)

   

  For example, on a Tournament 12 green with a 20 foot putt that is 2 feet down one could calculate power needed as 20 - 2 = 18  * .75 = 13.5. 

• 18randy18 499 Posts

  Mon, Dec 14 2020 11:58 PM

  Forget all that math, chart your putts based on %

  Randy

• 1GrimReaper1 21 Posts

  Tue, Dec 15 2020 5:35 PM

  Thanks for your advice Sammy. If the speeds are correct it's invaluable to me in the hope of competing with you guys and improving my game.

• DufferJohn7 3,576 Posts

  Wed, Dec 16 2020 1:41 PM

  Friend request sent, join our active CC for lots of fun competition and help to improve your game.

  Have fun and hit em straight,

  John

• sammey1 700 Posts

  Thu, Dec 17 2020 3:25 PM

  You're welcome. Those are calculate drop-dead speeds. I generally add a foot or so to each putt, depending how long and where. Just to make sure there it's still rolling when it reaches the cup. That also helps hold the line as it slows.

• YoungMorri1 1 Posts

  Tue, Dec 26 2023 10:44 AM

  % is math..,