Official NHA Assessment

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Line Horse
Far Horizon
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
5 / 12
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    Lady Elliot          2    60.5    1    0.00     0.0   72    69           72    +0
2    Golden Moment        3    57.5    2    0.25     8.5   82    46           72    -10
3    Aspoestertjie        5    60.0    3    1.30     0.0   70    71           71    +1
4    Far Horizon          2    60.5    4    2.20     0.0   72    72           72    +0
5    Fort J'adore         3    61.0    5    2.30     8.5   72    55           62    -10
6    Umhlali              2    59.0    6    2.35     0.0   68    68           68    +0
7    Ladybug              3    60.5    7    4.25     8.5   72    53           62    -10
8    Aisling              3    57.5    8    4.75     8.5   70    46           60    -10
9    Purple Flower        3    56.5    9    5.05     8.5   63    44           53    -10
10   Miss Gibson          3    55.0    10   8.65     8.5   60    41           50    -10
99   An Air Of Pride      2    56.0    99   99.97    0.0   71    60           71    +0
99   Pretty Analia        5    55.0    99   0.00     0.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Elliot 72 71 72 -1 0.0 -
2 Golden Moment 82 62 72 -10 8.5 -
3 Aspoestertjie 70 68 71 -3 0.0 -
4 Far Horizon Line 72 72 72 ✓ Match 0.0
5 Fort J'adore 72 67 62 +5 8.5 -
6 Umhlali 68 67 68 -1 0.0 -
7 Ladybug 72 80 62 +18 8.5 -
8 Aisling 70 66 60 +6 8.5 -
9 Purple Flower 63 74 53 +21 8.5 -
10 Miss Gibson 60 56 50 +6 8.5 -
99 An Air Of Pride 71 68 71 -3 0.0 -
99 Pretty Analia - 61 58 +3 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