Official NHA Assessment

Race 5: CAPE RACING THANKS STAN ELLEY FM 80 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Ma Black
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Different Face (GB)  4    58.5    1    0.00     11.0  77    77           77    +0
2    Ma Black             4    60.5    2    1.00     11.0  81    81           81    +0
3    Palo Queen           5    54.5    3    1.10     0.0   82    91           91    +9
4    Jury Duty            4    52.0    4    1.20     11.0  64    64           64    +0
5    Cityscape            2    52.5    5    1.95     6.5   77    74           74    -3
6    Apollo Moon          3    55.0    6    3.20     9.5   70    73           73    +3
7    Arctic Ice           4    55.0    7    3.25     11.0  70    70           70    +0
8    Porque Te Vas        5    55.5    8    4.75     0.0   84    93           93    +9
9    Seeking Peace        3    52.5    9    8.50     9.5   65    68           68    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Different Face (GB) 77 76 77 -1 11.0 -
2 Ma Black Line 81 74 81 -7 11.0
3 Palo Queen 82 70 91 -21 0.0 -
4 Jury Duty 64 77 64 +13 11.0 -
5 Cityscape 77 70 74 -4 6.5 -
6 Apollo Moon 70 63 73 -10 9.5 -
7 Arctic Ice 70 70 70 ✓ Match 11.0 -
8 Porque Te Vas 84 78 93 -15 0.0 -
9 Seeking Peace 65 55 68 -13 9.5 -
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