Official NHA Assessment

Race 5: tabGOLD - THE INTELLIGENT BET! MAIDEN PLATE (For all Maidens)

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Line Horse
Arverni King
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 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    Arverni King         5    60.0    1    0.00     0.0   74    74           74    +0
2    Gimme Gorgeous       3    60.0    2    0.75     5.0   72    68           68    -4
3    Johnny's Hope        2    58.5    3    1.45     0.0   69    74           74    +5
4    Space Cowboy         3    60.0    4    1.95     5.0   67    67           67    +0
5    Manic Monday         3    54.0    5    2.55     5.0   58    54           54    -4
6    Triton               3    60.0    6    2.95     5.0   64    66           66    +2
7    Valerian Night       3    60.0    7    5.15     5.0   -     64           64    +64
8    The Green Gallant    6    60.0    8    11.95    0.0   61    74           74    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Arverni King Line 74 86 74 +12 0.0
2 Gimme Gorgeous 72 57 68 -11 5.0 -
3 Johnny's Hope 69 79 74 +5 0.0 -
4 Space Cowboy 67 67 67 ✓ Match 5.0 -
5 Manic Monday 58 61 54 +7 5.0 -
6 Triton 64 52 66 -14 5.0 -
7 Valerian Night - 59 64 -5 5.0 -
8 The Green Gallant 61 55 74 -19 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