Shelby Jackman.Com DD

(Page: Source usdiving.org)

Degrees of difficulty for dives are calculated using the component values of the formula shown below. The formula is: A + B + C + D + E = Degree of Difficulty

Please note that the "D" component appears twice. Choose the version of component "D" that applies to dive being performed.

As a guide, a list of previously calculated degrees of difficulty follows the formula. In this table, empty spaces indicate the degree of difficulty has not been calculated. A "--" indicates the dive is not possible.

Every effort has been made to ensure the accuracy of the entries in the table, but if any entry varies from that arrived at through use of the formula, the formula-derived degree of difficulty is to be applied to the dive in question, according to the USD FINA Technical Representative.

The source for this information is the FINA DD Formula and Table of DD (19.09.2001).

Degree of Difficulty (DD) is calculated by adding: A + B + C + D + E

A. Somersaults
Level 0 ½ 1 1½ 2 2½ 3 3½ 4½
1m & 5m 0.9 1.1 1.2 1.6 2.0 2.4 2.7 3.0 --
3m & 7 ½ 1.0 1.3 1.3 1.5 1.8 2.2 2.3 2.8 3.5
10m 1.0 1.3 1.4 1.5 1.9 2.1 2.5 2.7 3.5

B. Flight Position For flying dives add fly position (E) to either (B) or (C) Position
Position 0 - 1 Somersault 1 ½ - 2 Somersault 2 ½ Somersault 3 - 3 ½ Somersault 4½
Fwd Bck Rev Inwd Arm Fwd Bck Rev Inwd Arm Fwd Bck Rev Inwd Arm Fwd Bck Rev Inwd Arm Fwd
C=Tuck 0.1 0.1 0.1 -0.3 0.1 0 0 0 0.1 0 0 0.1 0 0.2 0.1 0 0 0 0.3 0.1 0
B=Pike 0.2 0.2 0.2 -0.2 0.3 0.1 0.3 0.3 0.3 0.3 0.2 0.3 0.2 0.5 0 0.3 0.3 0.3 0.6 0.4 0.4
A=Straight 0.3 0.3 0.3 0.1 0.4 0.4 0.5 0.6 0.8 0.5 0.6 0.7 0.6 -- -- -- -- -- -- -- --
D=Free 0.1 0.1 0.1 -0.1 0 0 -0.1 -0.1 0.2 0 0 -0.1 -0.2 0.4 0 0 0 0 -- -- --
E=Fly 0.2 0.1 0.1 0.4 -- 0.2 0.2 0.2 0.5 -- 0.3 0.3 0.3 0.7 -- 0.4 -- -- -- -- --

Seven of the above components have negative values. Dashes indicate dives that currently are not possible.

C. Twists
Group ½ Twist
½ - 1
Som.		 ½ Twist 1 ½ -2 Som. ½ Twist2 ½ Som. ½ Twist 3-3 ½ Som. 1 Twist 1 ½ Twists 2 Twists 2 ½ Twists 3 Twists 3 ½ Twists 4 Twists 4 ½ Twists
Forward 0.4 0.4 0.4 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Back 0.2 0.4 0 0 0.4 0.8 0.8 1.2 1.4 1.6 1.8 2.0
Reverse 0.2 0.4 0 0 0.4 0.8 0.8 1.2 1.4 1.6 1.8 2.0
Inward 0.2 0.4 0.2 0.4 0.4 0.8 0.8 1.2 1.4 1.6 1.8 2.0
Arm. Forward 0.4 0.5 0.5 0.4 1.2 1.3 1.5 1.7 -- -- -- --
Arm. Back/Rev 0.4 0.5 0.5 0.5 1,2 1,3 1,3 1,7 -- -- -- --

In calculating the degree of difficulty for twist dive with 1 or 1½ somersaults, the free position (D) shall be used in the calculation.

D. Approach/Group 1. Forward, Back, Reverse, Inward Groups

Level
Forward
Back
Reverse		 Inward
½ - 1 Som.		 Inward
1½ - 3½ Som.
1m and 5m 0 0.2 0.3 0.6 0.5
3m and 7½m 0 0.2 0.3 0.3 0.3
10m 0 0.2 0.3 0.3 0.2

D. Approach/Group 2. Armstand (does not apply to twisting dives)

Level		 Forward with
0-2 Som.		 Forward with more than 2 Som. Back with
0-½ Som.		 Back with
1-4 Som.		 Reverse with
0-½ Som.		 Reverse with
1-4 Som.
5m, 7½m, 10m 0.2 0.4 0.2 0.4 0.3 0.5

E. Unnatural Entry (does not apply to twisting dives)
Group ½ Som. 1 Som 1½ Som 2 Som 2 ½ Som 3 Som 3 ½ Som
Forward/Inward -- 0.1 -- 0.2 -- 0.2 --
Back/Reverse 0.1 -- 0.2 -- 0.3 -- 0.4
Armstand Back & Reverse -- 0.1 -- 0.2 -- 0.2 --
Armstand Forward 0.1 -- 0.2 -- 0.3 -- 0.4

Examples
Dive Pos Hght A B C D E DD
632 B 10 1.4 0.3 0 0.5 0.1 2.3
6243 D 10 1.9 0 1.3 0 0 3.2
6241 B 10 1.9 0.3 0.5 0 0 2.7
6162 C 10 2.5 0.1 1.2 0 0 3.8

 

SPRINGBOARD 1 METER 3 METER
               
Forward Group
A
B C D A B C D
101 Forward dive 1.4 1.3 1.2 -- 1.6 1.5 1.4 --
102 Forward 1 som 1.6 1.5 1.4 -- 1.7 1.6 1.5 --
103 Forward 1 ½ som 2.0 1.7 1.6 -- 1.9 1.6 1.5 --
104 Forward 2 som 2.6 2.3 2.2 -- 2.4 2.1 2.0 --
105 Forward 2 ½ som 2.6 2.4 -- 2.8 2.4 2.2 --
106 Forward 3 som 3.2 2.9 -- 2.8 2.5 --
107  Forward 3 ½ som 3.3 3.0 -- 3.1 2.8 --
109 Forward 4 ½ som -- 3.5 --
112 Fwd flying som -- 1.7 1.6 -- -- 1.8 1.7 --
113 Fwd flying 1 ½ som  -- 1.9 1.8 -- -- 1.8 1.7 --
115 Fwd flying 2 ½ som -- -- -- 2.7 2.5 --
Back Group
A
B C D A B C D
201 Back dive 1.7 1.6 1.5 -- 1.9 1.8 1.7 --
202 Back 1 som 1.7 1.6 1.5 -- 1.8 1.7 1.6 --
203 Back 1 ½ som 2.5 2.3 2.0 -- 2.4 2.2 1.9 --
204 Back 2 som 2.5 2.2 -- 2.5 2.3 2.0 --
205 Back 2 ½ som 3.2 3.0 -- 3.0 2.8 --
206 Back 3 som 3.2 2.9 -- 2.8 2.5 --
207 Back 3 ½ som -- 3.7 3.4 --
212 Back flying som -- 1.7 1.6 -- -- 1.8 1.7 --
213 Back flying 1 ½ som  -- -- -- 2.1 --
215 Back flying 2 ½ som -- -- -- 3.3 3.1 --

 


  SPRINGBOARD		 1 METER 3 METER
               
Reverse Group
A
B C D A B C D
301 Reverse dive 1.8 1.7 1.6 -- 2.0 1.9 1.8 --
302 Reverse 1 som 1.8 1.7 1.6 -- 1.9 1.8 1.7 --
303 Reverse 1 ½ som 2.7 2.4 2.1 -- 2.6 2.3 2.0 --
304 Reverse 2 som 2.9 2.6 2.3 -- 2.7 2.4 2.1 --
305 Reverse 2 ½ som 3.2 3.0 -- 3.4 3.0 2.8 --
306 Reverse 3 som 3.3 3.0 -- 2.9 2.6 --
307  Reverse 3 ½ som -- 3.8 3.5 --
312 Rev flying som -- 1.8 1.7 -- -- 1.9 1.8 --
313 Rev flying 1 ½ som  -- 2.6 2.3 -- -- 2.5 2.2 --
Inward Group
A
B C D A B C D
401 Inward dive 1.8 1.5 1.4 -- 1.7 1.4 1.3 --
402 Inward 1 som 2.0 1.7 1.6 -- 1.8 1.5 1.4 --
403 Inward 1 ½ som 2.4 2.2 -- 2.1 1.9 --
404 Inward 2 som 3.0 2.8 -- 2.6 2.4 --
405 Inward 2 ½ som 3.4 3.1 -- 3.0 2.7 --
407 Inward 3 ½ som -- 3.4 --
412 Inward flying som -- 2.1 2.0 -- -- 1.9 1.8 --
413 Inwd flying 1 ½som  -- 2.9 2.7 -- -- 2.6 2.4 --

 

 

SPRINGBOARD 1 METER 3 METER
               
Twisting Group
A
B C D A B C D
5111 Fwd dive ½ twist 1.8 1.7 1.6 -- 2.0 1.9 1.8 --
5112 Fwd dive 1 twist 2.0 1.9 -- 2.2 2.1 --
5121 Fwd 1 som ½ twist -- -- -- 1.7 -- -- -- 1.8
5122 Fwd 1 som 1 twist -- -- -- 1.9 -- -- -- 2.0
5124 Fwd 1 som 2 twists -- -- -- 2.3 -- -- -- 2.4
5126 Fwd 1 som 3 twists -- -- --  2.7 -- -- -- 2.8
5131 Fwd 1 ½ som ½ twist  -- -- -- 2.0 -- -- -- 1.9
5132 Fwd 1 ½ som 1 twist -- -- -- 2.2 -- -- -- 2.1
5134 Fwd 1 ½ som 2 twists -- -- -- 2.6 -- -- -- 2.5
5136 Fwd 1 ½ som 3 twists -- -- -- 3.0 -- -- -- 2.9
5138 Fwd 1 ½ som 4 twists -- -- -- 3.4  -- -- -- 3.3
5151 Fwd 2 ½ som ½ twist -- 3.0 2.8 -- -- 2.8 2.6 --
5152 Fwd 2 ½ som 1 twist -- 3.2 3.0 -- -- 3.0 2.8 --
5154 Fwd 2 ½ som 2 twists --  3.6 3.4 -- -- 3.4 3.2 --
5172 Fwd 3 ½ som 1 twist -- -- -- 3.7 3.4 --
5211 Back dive ½ twist 1.8 1.7 1.6 -- 2.0 1.9 1.8 --
5212 Back dive 1 twist 2.0 -- 2.2 --
5221 Back 1 som ½ twist -- -- -- 1.7 -- -- -- 1.8
5222 Back 1 som 1 twist -- -- -- 1.9 -- -- -- 2.0
5223 Back 1 som 1 ½ twists -- -- -- 2.3 -- -- -- 2.4
5225 Back 1 som 2 ½ twists -- -- -- 2.7 -- -- -- 2.8
5227 Back 1 som 3 ½ twists -- -- -- 3.1 -- -- -- 3.2
5231 Back 1 ½ som ½ tw -- -- -- 2.1 -- -- -- 2.0
5233  Back 1 ½ som 1 ½ tw -- -- -- 2.5 -- -- -- 2.4
5235 Back 1 ½ som 2 ½ tw -- -- -- 2.9 -- -- -- 2.8

 


  SPRINGBOARD		 1 METER 3 METER
               
Twisting Group
A
B C D A B C D
5237 Back 1 ½ s 3 ½ twists -- -- -- -- -- -- 3.2
5239 Back 1 ½ s 4 ½ twists -- -- -- -- -- -- 3.6
5251 Back 2 ½ som ½ twist -- 2.9 2.7 -- -- 2.7 2.5 --
5253 Back 2 ½ s 1 ½ twists -- -- -- 3.5 3.3 --
5311 Rev dive ½ twist 1.9 1.8 1.7 -- 2.1 2.0 1.9 --
5312 Rev dive 1 twist 2.1 -- 2.3 --
5321 Rev 1 som ½ twist -- -- -- 1.8 -- -- -- 1.9
5322 Rev 1 som 1 twist -- -- -- 2.0 -- -- -- 2.1
5323 Rev 1 som 1 ½ twists -- -- -- 2.4 -- -- -- 2.5
5325 Rev 1 som 2 ½ twists --  -- -- 2.8 -- -- -- 2.9
5331 Rev 1 ½ som ½ twist  --  -- -- 2.2 -- -- -- 2.1
5333 Rev 1 ½ s 1 ½ twists -- -- -- 2.6 -- -- -- 2.5
5335 Rev 1 ½ s 2 ½ twists -- -- -- 3.0 -- -- -- 2.9
5337 Rev 1 ½ s 3 ½ twists -- -- -- 3.4 -- -- -- 3.3
5339 Rev 1 ½ s 4 ½ twists -- -- -- -- -- -- 3.7
5351 Rev 2 ½ som ½ twist -- 2.9 2.7 -- -- 2.7 2.5 --
5353 Rev 2 ½ s 1 ½ twists -- 3.5 -- -- 3.5 3.3 --
5371 Rev 3 ½ som ½ twist -- -- -- 3.4 3.1 --
5411 Inwd dive ½ twist 2.0 1.7 1.6 -- 1.9 1.6 1.5 --
5412 Inwd dive 1 twist 2.2 1.9 1.8 -- 2.1 1.8 1.7 --
5421 Inwd 1 som ½ twist -- -- -- 1.9 -- -- -- 1.7
5422 Inwd 1 som 1 twist -- -- -- 2.1 -- -- -- 1.9
5432 Inwd 1 ½ som 1 twist -- -- -- 2.7 -- -- -- 2.4
5434 Inwd 1 ½ som 2 twists -- -- -- 3.1 -- -- -- 2.8
5436 Inwd 1 ½ som 3 twists -- -- -- -- -- -- 3.4

 

PLATFORM 10 METERS 7.5 METERS 5 METERS
                       
Forward Group
A
B C D A B C D A B