Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Chopsticks
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 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    Cerulean Dancer      2    56.0    1    0.00     0.0   -     61           6     +6
2    Chopsticks           3    60.0    2    1.25     1.0   71    71           71    +0
3    Queen Britanna       2    54.5    3    2.00     0.0   -     61           61    +61
4    Rosslyne             2    56.0    4    3.00     0.0   -     63           63    +63
5    Act Of Mercy         2    56.0    5    3.50     0.0   -     62           62    +62
6    Special Charm        3    60.0    6    3.75     1.0   -     68           68    +68
7    Look To The Stars    3    60.0    7    5.75     1.0   -     67           67    +67
8    Girl Scout           3    60.0    8    7.50     1.0   52    67           67    +15
9    Sparkleinhereye      2    56.0    9    9.25     0.0   -     61           61    +61
99   Three Bells          3    60.0    99   0.00     1.0   -     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 Cerulean Dancer - 71 6 +65 0.0 -
2 Chopsticks Line 71 59 71 -12 1.0
3 Queen Britanna - 57 61 -4 0.0 -
4 Rosslyne - 58 63 -5 0.0 -
5 Act Of Mercy - 58 62 -4 0.0 -
6 Special Charm - 104 68 +36 1.0 -
7 Look To The Stars - 58 67 -9 1.0 -
8 Girl Scout 52 54 67 -13 1.0 -
9 Sparkleinhereye - - 61 -61 0.0 -
99 Three Bells - 43 67 -24 1.0 -
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