Official NHA Assessment

Race 2: THE INDEPENDENT ON SATURDAY DURBAN THEN AND NOW D STAKES (For All Horses)

Back to Race
Line Horse
Snow Moon
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
4 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Snow Moon            3    61.5    1    0.00     1.5   68    68           68    +0
2    Sail To The Moon     4    59.0    2    1.00     0.5   66    69           69    +3
3    Gorgeous Dude        4    57.0    3    1.10     0.5   55    65           65    +10
4    Saudi Sweep          3    57.5    4    1.30     1.5   68    63           63    -5
5    Send Me              3    61.5    5    3.00     1.5   64    70           70    +6
6    Bank Street          3    61.5    6    3.80     1.5   65    69           69    +4
7    Kimball O'Hara       2    60.0    7    4.05     0.0   61    69           69    +8
8    Count Marsh          7    55.5    8    4.65     0.0   52    59           59    +7
9    Sergeant Soqrat      2    63.0    9    11.65    0.0   73    74           74    +1
10   Blonde Bombshell     2    53.5    10   16.55    0.0   60    55           55    -5
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Snow Moon Line 68 68 68 ✓ Match 1.5
2 Sail To The Moon 66 66 69 -3 0.5 -
3 Gorgeous Dude 55 55 65 -10 0.5 -
4 Saudi Sweep 68 68 63 +5 1.5 -
5 Send Me 64 64 70 -6 1.5 -
6 Bank Street 65 65 69 -4 1.5 -
7 Kimball O'Hara 61 61 69 -8 0.0 -
8 Count Marsh 52 52 59 -7 0.0 -
9 Sergeant Soqrat 73 71 74 -3 0.0 -
10 Blonde Bombshell 60 60 55 +5 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