Official NHA Assessment

Race 2: GOLD CIRCLE RACING YOUTUBE CHANNEL MAIDEN PLATE (For all Maidens)

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Line Horse
Colour Master
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    Grey Linngari        5    60.0    1    0.00     0.0   55    62           61    +6
2    Bombay Circus        4    60.0    2    0.30     1.5   52    66           66    +14
3    Colour Master        3    60.0    3    0.50     3.5   62    62           62    +0
4    The Green Gallant    6    60.0    4    2.30     0.0   70    66           66    -4
5    Belle's First Wave   3    57.5    5    4.00     3.5   60    52           52    -8
6    Shining Sea          3    60.0    6    6.20     3.5   47    55           55    +8
7    Ready Freddy         3    60.0    7    7.80     3.5   -     55           55    +55
8    Music Box Special    3    60.0    8    9.80     3.5   53    55           55    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grey Linngari 55 50 61 -11 0.0 -
2 Bombay Circus 52 49 66 -17 1.5 -
3 Colour Master Line 62 52 62 -10 3.5
4 The Green Gallant 70 55 66 -11 0.0 -
5 Belle's First Wave 60 51 52 -1 3.5 -
6 Shining Sea 47 51 55 -4 3.5 -
7 Ready Freddy - 47 55 -8 3.5 -
8 Music Box Special 53 53 55 -2 3.5 -
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