Official NHA Assessment

Race 1: WELCOME TO CAPE RACING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Rock On Captain
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Rock On Captain      3    60.0    1    0.00     5.0   75    75           75    +0
2    Della's Sword        3    60.0    2    1.25     5.0   -     75           75    +75
3    What A Cherry        3    60.0    3    1.45     5.0   73    75           75    +2
4    Whisper Quietly      3    60.0    4    2.45     5.0   -     75           75    +75
5    Divine Dynasty       3    60.0    5    5.70     5.0   79    75           75    -4
6    Microburst           3    60.0    6    5.90     5.0   47    75           75    +28
7    Sparkling Crystal    3    60.0    7    5.95     5.0   -     75           75    +75
8    Gimme A Ruby         3    60.0    8    8.45     5.0   -     75           75    +75
99   Rare                 3    60.0    99   0.00     5.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rock On Captain Line 75 57 75 -18 5.0
2 Della's Sword - 56 75 -19 5.0 -
3 What A Cherry 73 72 75 -3 5.0 -
4 Whisper Quietly - - 75 -75 5.0 -
5 Divine Dynasty 79 57 75 -18 5.0 -
6 Microburst 47 60 75 -15 5.0 -
7 Sparkling Crystal - 50 75 -25 5.0 -
8 Gimme A Ruby - 53 75 -22 5.0 -
99 Rare - 53 75 -22 5.0 -
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