Official NHA Assessment

Race 4: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Chopsticks
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Manhattan            3    60.0    1    0.00     1.5   -     66           6     +6
2    Special Charm        3    60.0    2    0.40     1.5   58    71           71    +13
3    Chopsticks           3    60.0    3    0.90     1.5   70    70           70    +0
4    Rosslyne             2    56.0    4    2.00     0.0   -     64           64    +64
5    Batik                3    60.0    5    9.00     1.5   51    66           66    +15
6    Feel The Magic       2    56.0    6    26.00    0.0   -     61           61    +61
99   Starlit Strip        3    60.0    99   0.00     1.5   -     66           66    +0
99   Five Fortunes        3    60.0    99   0.00     1.5   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Manhattan - 68 6 +62 1.5 -
2 Special Charm 58 104 71 +33 1.5 -
3 Chopsticks Line 70 59 70 -11 1.5
4 Rosslyne - 58 64 -6 0.0 -
5 Batik 51 57 66 -9 1.5 -
6 Feel The Magic - 30 61 -31 0.0 -
99 Starlit Strip - 45 66 -21 1.5 -
99 Five Fortunes - 53 66 -13 1.5 -
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