Official NHA Assessment

Race 7: OPEN A TABGOLD ACCOUNT - 031 314 1874 FM 90 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Crazy Blues
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
5 / 9
Within 2 points
Significant Diffs
3 / 9
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    Mascherina           4    57.5    1    0.00     0.5   87    85           87    +0
2    Crazy Blues          3    54.5    2    3.90     1.0   79    79           79    +0
3    My Lady Soul         4    58.0    3    5.70     0.5   88    86           86    -2
4    Wonderful            3    56.5    4    5.95     1.0   85    82           82    -3
5    Mountainsofthemoon   2    55.5    5    6.25     0.0   83    82           82    -1
6    Zinikele             5    61.5    6    6.75     0.0   93    94           94    +1
7    Princess Arlowe      2    58.5    7    6.95     0.0   89    88           88    -1
8    Malcolm's Dream      6    58.5    8    7.10     0.0   87    88           88    +1
9    Imperious Destiny    3    57.5    9    12.70    1.0   85    84           84    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mascherina 87 99 87 +12 0.5 -
2 Crazy Blues Line 79 78 79 -1 1.0
3 My Lady Soul 88 86 86 ✓ Match 0.5 -
4 Wonderful 85 98 82 +16 1.0 -
5 Mountainsofthemoon 83 65 82 -17 0.0 -
6 Zinikele 93 89 94 -5 0.0 -
7 Princess Arlowe 89 86 88 -2 0.0 -
8 Malcolm's Dream 87 88 88 ✓ Match 0.0 -
9 Imperious Destiny 85 85 84 +1 1.0 -
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