Official NHA Assessment

Race 1: TABGOLD SCORE 10 SCORE 8 MAIDEN PLATE (For all Maidens)

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Line Horse
Mo King
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 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    Apex Predator        4    60.0    1    0.00     11.0  76    61           61    -15
2    Mo King              2    60.0    2    0.40     6.5   70    70           70    +0
3    Bandmaster           3    60.0    3    0.80     9.5   60    64           64    +4
4    Cappellino           3    58.5    4    2.60     9.5   66    61           61    -5
5    Bomber Stream        4    60.0    5    5.50     11.0  64    61           61    -3
6    The Teacher          2    58.0    6    12.50    6.5   -     66           66    +66
7    Bugsie               2    51.5    7    13.90    6.5   60    53           53    -7
8    Spring Willow        3    60.0    8    15.80    9.5   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Apex Predator 76 69 61 +8 11.0 -
2 Mo King Line 70 66 70 -4 6.5
3 Bandmaster 60 62 64 -2 9.5 -
4 Cappellino 66 61 61 ✓ Match 9.5 -
5 Bomber Stream 64 52 61 -9 11.0 -
6 The Teacher - 42 66 -24 6.5 -
7 Bugsie 60 56 53 +3 6.5 -
8 Spring Willow - - 64 -64 9.5 -
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