Score 20                   | Score 30                   | Score 40                           
Range | Letter and Demerits| Range | Letter and Demerits| Range | Letter and Demerits     
19-20   A  = -0,           | 28-30   A  = -0, -1,       | 38-40   A  = -0, -1,            
18-19   A- = -1,           | 27-28   A- = -2,           | 36-38   A- = -2, -3,            
17-18   B+ = -2,           | 26-27   B+ = -3, -4,       | 34-36   B+ = -4, -5,            
16-17   B  = -3,           | 24-25   B  = -5, -6,       | 32-34   B  = -6, -7,            
15-16   B- = -4,           | 22-24   B- = -7,           | 30-32   B- = -8, -9,            
14-15   C+ = -5,           | 21-22   C+ = -8,           | 28-30   C+ = -10, -11,          
13-14   C  = -6,           | 20-21   C  = -9, -10,      | 26-28   C  = -12, -13,          
12-13   C- = -7,           | 18-19   C- = -11, -12,     | 24-26   C- = -14, -15,          
11-12   D+ = -8,           | 16-18   D+ = --13,         | 22-24   D+ = -16, -17,          
10-11   D  = -9,           | 15-16   D  = -14, -15,     | 20-22   D  = -18, -19,          
 9-10   D- = -10,          | 14-15   D- = -16,          | 18-20   D- = -20, -21,          
 8- 9   E  = -11,          | 12-13   E  = -17, -18,     | 16-18   E  = -22, -23,          
                                                        
Score 50                     | Score 60                    
Range | Letter and Demerits  | Range | Letter and Demerits 
48-50   A  = -0, -1, -2,     | 57-60   A  = -0, -1, -2, -3,
45-47   A- = -3, -4, -5,     | 54-56   A- = -4, -5, -6,    
42-44   B+ = -6, -7,         | 51-53   B+ = -7, -8, -9,    
40-42   B  = -8, -9, -10,    | 48-50   B  = -10, -11, -12, 
38-40   B- = -11, -12,       | 45-47   B- = -13, -14, -15, 
35-37   C+ = -13, -14, -15,  | 42-44   C+ = -16, -17, -18, 
32-34   C  = -16, -17, -18,  | 39-41   C  = -19, -20, -21, 
30-32   C- = -19, -20,       | 36-38   C- = -22, -23, -24, 
27-30   D+ = -21, -22,       | 32-35   D+ = -25, -26, -27, 
25-27   D  = -23, -24, -25,  | 30-32   D  = -28, -29, -30, 
22-24   D- = -26, -27,       | 27-29   D- = -31, -32, -33, 
20-22   E  = -28, -29, -30,  | 24-26   E  = -34, -35, -36,