Official NHA Assessment

Race 5: GOLD CIRCLE RACING YOUTUBE CHANNEL FM 67 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Red Rosa
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 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    Let's Not Linger     4    59.5    1    0.00     1.5   71    72           71    +0
2    Luna Eclipse         4    55.0    2    1.60     1.5   60    66           66    +6
3    Demigod              3    56.0    3    2.00     3.0   65    65           65    +0
4    Red Rosa             4    49.5    4    2.75     1.5   54    54           54    +0
5    Razzle Dazzle Em     4    59.5    5    3.45     1.5   66    73           73    +7
6    Ingakara             5    57.5    6    5.05     0.0   62    71           71    +9
7    Crystal Cove         4    53.0    7    6.55     1.5   53    59           59    +6
8    Golden Delight       4    49.0    8    7.60     1.5   53    51           51    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Let's Not Linger 71 87 71 +16 1.5 -
2 Luna Eclipse 60 78 66 +12 1.5 -
3 Demigod 65 67 65 +2 3.0 -
4 Red Rosa Line 54 51 54 -3 1.5
5 Razzle Dazzle Em 66 57 73 -16 1.5 -
6 Ingakara 62 53 71 -18 0.0 -
7 Crystal Cove 53 51 59 -8 1.5 -
8 Golden Delight 53 50 51 -1 1.5 -
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