Official NHA Assessment

Race 3: CAPE RACING SUPPORTS sisters.org.za C STAKES (For All Horses with a nett rating of 83 & below)

Back to Race
Line Horse
Rattlesnake
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Peace Of Mind        3    57.5    1    0.00     3.5   78    75           75    -3
2    Rattlesnake          3    60.0    2    1.75     3.5   80    80           80    +0
3    United Nation        3    58.5    3    1.80     3.5   75    77           77    +2
4    Tough Terrain        5    64.0    4    2.80     0.0   82    95           95    +13
5    Easy Money           4    55.0    5    4.80     4.0   68    69           69    +1
6    Golden Ideal         3    50.0    6    4.85     3.5   57    60           60    +3
7    King Viserys         4    57.5    7    6.10     4.0   68    74           74    +6
8    Go It Alone          4    60.0    8    8.10     4.0   74    79           79    +5
9    Palo Queen           5    56.0    9    8.50     0.0   72    79           79    +7
10   Rougarouin           4    57.0    10   99.99    4.0   69    73           73    +4
99   Night Tiger          5    60.0    99   0.00     0.0   -     87           87    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Peace Of Mind 78 74 75 -1 3.5 -
2 Rattlesnake Line 80 85 80 +5 3.5
3 United Nation 75 89 77 +12 3.5 -
4 Tough Terrain 82 81 95 -14 0.0 -
5 Easy Money 68 56 69 -13 4.0 -
6 Golden Ideal 57 56 60 -4 3.5 -
7 King Viserys 68 73 74 -1 4.0 -
8 Go It Alone 74 69 79 -10 4.0 -
9 Palo Queen 72 70 79 -9 0.0 -
10 Rougarouin 69 69 73 -4 4.0 -
99 Night Tiger - 67 87 -20 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points