Official NHA Assessment

Race 7: 4RACING.TV FM 74 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mamaquera
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Ivy League           2    56.5    1    0.00     0.0   85    68           85    +0
2    Mamaquera            5    52.0    2    1.25     0.0   63    63           63    +0
3    Fur Baby             2    57.0    3    2.25     0.0   70    72           72    +2
4    Writteninthesand     3    53.5    4    2.50     0.5   63    63           63    +0
5    Wikkel Spikkel       3    54.5    5    3.25     0.5   66    65           65    -1
6    Beguiling            3    55.5    6    6.00     0.5   66    65           65    -1
7    Camerata             2    53.5    7    13.00    0.0   63    62           62    -1
99   Save The Queen       3    58.0    99   0.00     0.5   -     70           70    +0
99   Rattle Bag           6    58.5    99   0.00     0.0   -     72           72    +0
99   Nettleton            3    56.5    99   0.00     0.5   -     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 Ivy League 85 98 85 +13 0.0 -
2 Mamaquera Line 63 60 63 -3 0.0
3 Fur Baby 70 64 72 -8 0.0 -
4 Writteninthesand 63 57 63 -6 0.5 -
5 Wikkel Spikkel 66 65 65 ✓ Match 0.5 -
6 Beguiling 66 50 65 -15 0.5 -
7 Camerata 63 49 62 -13 0.0 -
99 Save The Queen - 75 70 +5 0.5 -
99 Rattle Bag - 71 72 -1 0.0 -
99 Nettleton - 100 67 +33 0.5 -
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