Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Shine In Memphis
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Woman Of Power       4    59.0    1    0.00     10.0  -     65           6     +6
2    Phantom Express      4    59.0    2    1.25     10.0  79    65           69    -10
3    Shine In Memphis     2    59.0    3    3.25     5.5   74    74           74    +0
4    Sugary Sweet         2    57.5    4    3.65     5.5   69    71           71    +2
5    Boom Boom            4    59.0    5    3.85     10.0  74    65           65    -9
6    Double Joy           2    60.0    6    5.85     5.5   46    76           76    +30
7    Miss Platina         4    59.0    7    8.00     10.0  -     65           65    +65
8    Ntombencane          3    59.0    8    8.10     8.5   -     68           68    +68
9    Dambusters           3    59.0    9    9.10     8.5   -     68           68    +68
10   Spirit In The Wind   4    59.0    10   9.70     10.0  -     65           65    +65
99   Sahara Dawn          4    59.0    99   0.00     10.0  -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Woman Of Power - 92 6 +86 10.0 -
2 Phantom Express 79 76 69 +7 10.0 -
3 Shine In Memphis Line 74 75 74 +1 5.5
4 Sugary Sweet 69 56 71 -15 5.5 -
5 Boom Boom 74 81 65 +16 10.0 -
6 Double Joy 46 44 76 -32 5.5 -
7 Miss Platina - 92 65 +27 10.0 -
8 Ntombencane - 38 68 -30 8.5 -
9 Dambusters - 52 68 -16 8.5 -
10 Spirit In The Wind - 60 65 -5 10.0 -
99 Sahara Dawn - 52 65 -13 10.0 -
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