Official NHA Assessment

Race 3: TAB 4RACING APP CONDITIONS PLATE (F & M) (For Fillies and Mares)

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Line Horse
Kings Again
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Sweetie Darling      2    58.0    1    0.00     4.0   100   94           94    -6
2    Virgin River         5    55.0    2    0.25     0.0   87    96           96    +9
3    Kings Again          2    52.5    3    1.50     4.0   83    83           83    +0
4    Unconquerable Lady   2    55.0    4    4.00     4.0   89    88           88    -1
5    Montelena            4    56.0    5    4.75     7.0   94    84           84    -10
6    Indebe Mayibuye      3    48.5    6    8.25     6.0   82    71           72    -10
7    Basingstoke          2    50.5    7    10.50    4.0   77    79           79    +2
99   Symbol Of Love       2    60.0    99   0.00     4.0   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sweetie Darling 100 100 94 +6 4.0 -
2 Virgin River 87 95 96 -1 0.0 -
3 Kings Again Line 83 81 83 -2 4.0
4 Unconquerable Lady 89 90 88 +2 4.0 -
5 Montelena 94 90 84 +6 7.0 -
6 Indebe Mayibuye 82 79 72 +7 6.0 -
7 Basingstoke 77 72 79 -7 4.0 -
99 Symbol Of Love - 94 98 -4 4.0 -
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