Official NHA Assessment

Race 3: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Copper John
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 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    Copper John          4    57.0    1    0.00     7.0   79    79           79    +0
2    Breath Of Magic      4    55.5    2    0.50     7.0   77    81           81    +4
3    Exhale               3    60.0    3    3.00     9.0   -     83           83    +83
4    Queen Britanna       2    57.0    4    3.75     0.0   61    94           94    +33
5    Strewn Sky           2    57.0    5    5.50     0.0   -     93           93    +93
6    Pike Place           3    60.0    6    7.75     9.0   68    81           81    +13
7    Broadway             4    60.0    7    22.00    7.0   59    85           85    +26
8    Rock Of Ages         2    57.0    8    29.00    0.0   55    93           93    +38
9    Rabobi               3    60.0    9    31.00    9.0   -     81           81    +81
99   Cicadidae            4    54.0    99   0.00     7.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Copper John Line 79 61 79 -18 7.0
2 Breath Of Magic 77 60 81 -21 7.0 -
3 Exhale - 66 83 -17 9.0 -
4 Queen Britanna 61 57 94 -37 0.0 -
5 Strewn Sky - 69 93 -24 0.0 -
6 Pike Place 68 57 81 -24 9.0 -
7 Broadway 59 59 85 -26 7.0 -
8 Rock Of Ages 55 49 93 -44 0.0 -
9 Rabobi - 10 81 -71 9.0 -
99 Cicadidae - 81 73 +8 7.0 -
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