Official NHA Assessment

Race 4: BIDVEST PROGRESS PLATE (3-year-old Fillies) (Maidens, 1, 2 & 3 time winners (3-year-old Fillies))

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Line Horse
None Other
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Captain Peg          5    57.0    1    0.00     0.0   100   92           70    -30
2    Moraine              2    55.0    2    0.60     0.0   87    93           93    +6
3    None Other           5    58.0    3    1.70     0.0   97    97           97    +0
4    Orarari Gold         2    58.0    4    1.90     0.0   101   97           97    -4
5    Rock The Fox         2    55.0    5    2.60     0.0   104   90           94    -10
6    Ready To Fly         2    55.0    6    4.10     0.0   86    89           89    +3
7    Coldhardstare        2    55.0    7    5.10     0.0   78    88           88    +10
8    Quantum              5    55.0    8    6.10     0.0   80    88           88    +8
9    Tried And True       5    55.0    9    7.30     0.0   80    88           88    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Peg 100 100 70 +30 0.0 -
2 Moraine 87 87 93 -6 0.0 -
3 None Other Line 97 115 97 +18 0.0
4 Orarari Gold 101 101 97 +4 0.0 -
5 Rock The Fox 104 94 94 ✓ Match 0.0 -
6 Ready To Fly 86 62 89 -27 0.0 -
7 Coldhardstare 78 94 88 +6 0.0 -
8 Quantum 80 67 88 -21 0.0 -
9 Tried And True 80 75 88 -13 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