Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Makaha Beach
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Burning Moon         3    60.0    1    0.00     5.0   -     59           6     +6
2    Dream Star           2    60.0    2    1.75     0.0   55    72           72    +17
3    Executor             5    60.0    3    2.00     0.0   -     72           72    +72
4    Makaha Beach         2    60.0    4    5.25     0.0   69    69           69    +0
5    Who Are You          2    60.0    5    5.50     0.0   60    69           69    +9
6    Girl Scout           3    60.0    6    7.00     5.0   57    59           59    +2
7    Sandra M             3    60.0    7    10.25    5.0   -     59           59    +59
8    Texas Tornado        2    60.0    8    11.75    0.0   57    69           69    +12
9    Weekend In Seattle   3    60.0    9    23.50    5.0   42    59           59    +17
99   Make A Deal          3    58.5    99   0.00     5.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Burning Moon - 71 6 +65 5.0 -
2 Dream Star 55 61 72 -11 0.0 -
3 Executor - 87 72 +15 0.0 -
4 Makaha Beach Line 69 62 69 -7 0.0
5 Who Are You 60 58 69 -11 0.0 -
6 Girl Scout 57 54 59 -5 5.0 -
7 Sandra M - - 59 -59 5.0 -
8 Texas Tornado 57 55 69 -14 0.0 -
9 Weekend In Seattle 42 32 59 -27 5.0 -
99 Make A Deal - 40 56 -16 5.0 -
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