Official NHA Assessment

Race 7: 4RACING.TV FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Countess Danza
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 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    Big City Girl        4    54.0    1    0.00     6.0   54    42           54    +0
2    Bushveld             3    56.0    2    0.20     8.5   58    41           48    -10
3    Shiny Silva          3    54.0    3    2.75     8.5   55    39           45    -10
4    Countess Danza       5    57.5    4    3.75     0.0   62    62           62    +0
5    Gilda Gray           3    59.5    5    3.80     8.5   65    49           55    -10
6    Marshmallow          4    54.0    6    4.50     6.0   76    42           66    -10
7    Blindedbythelights   2    54.5    7    5.50     0.0   56    55           55    -1
8    Tsitsikamma Pearl    3    56.5    8    8.00     8.5   62    42           52    -10
9    Try Me               4    60.0    9    11.00    6.0   83    54           73    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Big City Girl 54 59 54 +5 6.0 -
2 Bushveld 58 56 48 +8 8.5 -
3 Shiny Silva 55 42 45 -3 8.5 -
4 Countess Danza Line 62 51 62 -11 0.0
5 Gilda Gray 65 64 55 +9 8.5 -
6 Marshmallow 76 72 66 +6 6.0 -
7 Blindedbythelights 56 51 55 -4 0.0 -
8 Tsitsikamma Pearl 62 59 52 +7 8.5 -
9 Try Me 83 52 73 -21 6.0 -
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