Official NHA Assessment

Race 4: BET WITH TABGOLD - THE INTELLIGENT BET! MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Quantifier
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 10
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    Rock Fall            2    57.0    1    0.00     0.0   79    74           74    -5
2    Quantifier           2    57.0    2    0.30     0.0   80    80           80    +0
3    Billy Of Tea         2    51.0    3    0.55     0.0   75    68           68    -7
4    Arverni King         5    58.0    4    3.55     0.0   83    78           78    -5
5    True Trojan          3    56.0    5    3.95     8.0   75    58           65    -10
6    Blazing Light        3    54.5    6    5.85     8.0   74    53           64    -10
7    Sugar Blast          2    58.0    7    9.05     0.0   95    76           85    -10
8    Givers Grace         2    52.0    8    18.05    0.0   86    64           76    -10
99   Twice Golden         5    57.5    99   0.00     0.0   -     75           75    +0
99   Duke Of Africa       5    53.5    99   0.00     0.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rock Fall 79 80 74 +6 0.0 -
2 Quantifier Line 80 74 80 -6 0.0
3 Billy Of Tea 75 75 68 +7 0.0 -
4 Arverni King 83 86 78 +8 0.0 -
5 True Trojan 75 64 65 -1 8.0 -
6 Blazing Light 74 62 64 -2 8.0 -
7 Sugar Blast 95 102 85 +17 0.0 -
8 Givers Grace 86 61 76 -15 0.0 -
99 Twice Golden - 84 75 +9 0.0 -
99 Duke Of Africa - 76 67 +9 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