Official NHA Assessment

Race 4: CERISE CHERRY MERIT RATED 88 HANDICAP (Open)

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Line Horse
The Octagon
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Solartrip            3    53.0    1    0.00     1.5   77    68           77    +0
2    The Octagon          2    58.0    2    2.00     0.0   84    84           84    +0
3    Power Ranger         7    54.5    3    8.00     0.0   77    74           74    -3
4    Ultimate Jewel       5    60.0    4    9.00     0.0   88    85           85    -3
5    Empire Blue          4    58.0    5    10.50    0.5   84    80           80    -4
6    Aerial Display       5    57.5    6    15.50    0.0   83    80           80    -3
99   Raining Again        6    57.5    99   0.00     0.0   -     80           80    +0
99   Captive Moon         6    59.0    99   0.00     0.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Solartrip 77 77 77 ✓ Match 1.5 -
2 The Octagon Line 84 76 84 -8 0.0
3 Power Ranger 77 69 74 -5 0.0 -
4 Ultimate Jewel 88 80 85 -5 0.0 -
5 Empire Blue 84 71 80 -9 0.5 -
6 Aerial Display 83 68 80 -12 0.0 -
99 Raining Again - 73 80 -7 0.0 -
99 Captive Moon - 75 83 -8 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