Official NHA Assessment

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

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Line Horse
All Rise
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
4 / 8
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    Aunt Pittypat        3    60.0    1    0.00     1.5   61    49           49    -12
2    Exquisite Dawn       2    55.0    2    12.75    0.0   -     42           42    +42
3    All Rise             3    60.0    3    13.50    1.5   49    49           49    +0
4    Coffee In Brazil     3    60.0    4    19.00    1.5   54    49           49    -5
5    Dusky Rose           3    60.0    5    22.00    1.5   58    49           49    -9
6    Impression           3    60.0    6    27.00    1.5   60    49           50    -10
7    Punta Alta           2    60.0    7    99.99    0.0   51    52           52    +1
99   Antananarivo         4    60.0    99   0.00     0.5   -     51           51    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aunt Pittypat 61 65 49 +16 1.5 -
2 Exquisite Dawn - 58 42 +16 0.0 -
3 All Rise Line 49 50 49 +1 1.5
4 Coffee In Brazil 54 49 49 ✓ Match 1.5 -
5 Dusky Rose 58 58 49 +9 1.5 -
6 Impression 60 51 50 +1 1.5 -
7 Punta Alta 51 50 52 -2 0.0 -
99 Antananarivo - 57 51 +6 0.5 -
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