Official NHA Assessment

Race 3: PROGRESS PLATE (For Maidens & 1,2 & 3 time winners)

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Line Horse
Power Ranger
Reference for assessment
Exact Matches
1 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
3 / 4
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    Raining Again        6    59.5    1    0.00     0.0   82    66           66    -16
2    Power Ranger         7    55.0    2    2.00     0.0   60    60           60    +0
3    Cutback              6    57.0    3    3.00     0.0   70    63           63    -7
4    Bruce's Spirit       6    60.0    4    4.75     0.0   70    67           67    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raining Again 82 73 66 +7 0.0 -
2 Power Ranger Line 60 69 60 +9 0.0
3 Cutback 70 63 63 ✓ Match 0.0 -
4 Bruce's Spirit 70 55 67 -12 0.0 -
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