Official NHA Assessment

Race 6: GALLOP TV OPEN MAIDEN (For all Maidens)

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Line Horse
Good Omen
Reference for assessment
Exact Matches
3 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
4 / 11
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    Full Monty           3    59.0    1    0.00     2.5   70    68           68    -2
2    Good Omen            2    60.0    2    0.25     0.0   75    75           75    +0
3    Gimme The Truth      3    56.5    3    0.75     2.5   65    67           67    +2
4    Hollywood Heiress    2    48.5    4    2.25     0.0   62    55           55    -7
5    Anemie               2    50.5    5    2.35     0.0   58    58           58    +0
6    Apache Ag            4    57.5    6    2.60     1.0   62    70           70    +8
7    Fire Force           4    55.0    7    3.90     1.0   60    64           64    +4
8    Craft Market (GB)    3    54.0    8    4.00     2.5   55    59           59    +4
9    Amphitrite           3    52.0    9    5.50     2.5   57    54           54    -3
10   Thorvald             3    52.5    10   7.90     2.5   55    55           55    +0
11   Pinkerton's Son      2    50.0    11   15.50    0.0   50    55           55    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Full Monty 70 72 68 +4 2.5 -
2 Good Omen Line 75 75 75 ✓ Match 0.0
3 Gimme The Truth 65 65 67 -2 2.5 -
4 Hollywood Heiress 62 61 55 +6 0.0 -
5 Anemie 58 56 58 -2 0.0 -
6 Apache Ag 62 59 70 -11 1.0 -
7 Fire Force 60 57 64 -7 1.0 -
8 Craft Market (GB) 55 52 59 -7 2.5 -
9 Amphitrite 57 54 54 ✓ Match 2.5 -
10 Thorvald 55 55 55 ✓ Match 2.5 -
11 Pinkerton's Son 50 50 55 -5 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