Official NHA Assessment

Race 3: RACING TODAY MAIDEN PLATE (F & M) (For Maiden F&M)

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Line Horse
Preserve Forever
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
2 / 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    Hat Montera          3    57.5    1    0.00     2.0   60    53           53    -7
2    Preserve Forever     3    60.0    2    5.50     2.0   58    58           58    +0
3    Global Scene         2    60.0    3    6.75     0.0   66    62           62    -4
4    Cheap Thrills        4    60.0    4    7.25     1.0   51    60           60    +9
5    Fantasy Girl         2    60.0    5    7.30     0.0   62    62           62    +0
6    Celtique             3    60.0    6    8.80     2.0   50    58           58    +8
7    Oh Mandy             3    60.0    7    10.80    2.0   65    58           58    -7
99   Battle Of Britain    3    60.0    99   0.00     2.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hat Montera 60 81 53 +28 2.0 -
2 Preserve Forever Line 58 53 58 -5 2.0
3 Global Scene 66 61 62 -1 0.0 -
4 Cheap Thrills 51 56 60 -4 1.0 -
5 Fantasy Girl 62 58 62 -4 0.0 -
6 Celtique 50 58 58 ✓ Match 2.0 -
7 Oh Mandy 65 64 58 +6 2.0 -
99 Battle Of Britain - 59 58 +1 2.0 -
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