Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Mia Regina
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
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    Mia Regina           2    59.0    1    0.00     5.0   -     -            -     +0
2    Heart And Mind       2    59.0    2    1.75     5.0   62    -            62    +0
3    Reggies Girl         3    59.0    3    3.00     7.5   -     -5           -     +0
4    Inventrix            2    59.0    4    5.50     5.0   79    -            76    -3
5    Kabuki Mo            3    59.0    5    8.25     7.5   -     -5           -     +0
6    Three Bells          3    60.0    6    8.50     7.5   30    -3           20    -10
7    Pompom Queen         3    59.0    7    9.50     7.5   -     -5           -     +0
8    Queen's Navy         3    60.0    8    11.75    7.5   57    -3           47    -10
9    Varsavia             3    59.0    9    14.50    7.5   -     -5           -     +0
10   Agia Sofia           3    60.0    10   17.50    7.5   24    -3           14    -10
99   Time For Charity     5    59.0    99   0.00     0.0   -     10           10    +0
99   Prayuponastar        3    59.0    99   0.00     7.5   -     -5           -5    +0
99   Count Your Chances   5    59.0    99   0.00     0.0   -     10           10    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mia Regina Line - 63 - +63 5.0
2 Heart And Mind 62 64 62 +2 5.0 -
3 Reggies Girl - 66 - +66 7.5 -
4 Inventrix 79 73 76 -3 5.0 -
5 Kabuki Mo - - - ✓ Match 7.5 -
6 Three Bells 30 43 20 +23 7.5 -
7 Pompom Queen - - - ✓ Match 7.5 -
8 Queen's Navy 57 50 47 +3 7.5 -
9 Varsavia - 20 - +20 7.5 -
10 Agia Sofia 24 24 14 +10 7.5 -
99 Time For Charity - 61 10 +51 0.0 -
99 Prayuponastar - 52 -5 +57 7.5 -
99 Count Your Chances - 51 10 +41 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