Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Danube
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Primal Quest         3    59.0    1    0.00     6.0   64    72           70    +6
2    Spirito Selvaggio    2    59.0    2    1.60     0.0   -     87           87    +87
3    Status               3    59.0    3    2.00     6.0   -     75           75    +75
4    Danube               3    59.0    4    3.80     6.0   73    73           73    +0
5    Spy Story            3    59.0    5    4.10     6.0   76    73           73    -3
6    King Of Queen        2    60.0    6    6.35     0.0   65    86           86    +21
7    River Kitten         3    59.0    7    10.85    6.0   -     72           72    +72
8    Ragamuffin           2    60.0    8    14.00    0.0   52    86           86    +34
9    Blue Crystal         3    59.0    9    15.50    6.0   -     72           72    +72
10   Falcon Wings         3    59.0    10   99.99    6.0   -     72           72    +72
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Primal Quest 64 81 70 +11 6.0 -
2 Spirito Selvaggio - 77 87 -10 0.0 -
3 Status - 75 75 ✓ Match 6.0 -
4 Danube Line 73 76 73 +3 6.0
5 Spy Story 76 66 73 -7 6.0 -
6 King Of Queen 65 65 86 -21 0.0 -
7 River Kitten - 50 72 -22 6.0 -
8 Ragamuffin 52 45 86 -41 0.0 -
9 Blue Crystal - 51 72 -21 6.0 -
10 Falcon Wings - 47 72 -25 6.0 -
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