Official NHA Assessment

Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Ponte Vecchio
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Triptothewoods       2    55.5    1    0.00     7.0   86    63           63    -23
2    Barnbougle           3    60.0    2    1.25     10.5  55    65           65    +10
3    Head Girl            5    57.5    3    3.25     0.0   72    81           81    +9
4    Ponte Vecchio        2    57.5    4    4.50     7.0   67    67           67    +0
5    Tuscany              2    57.5    5    5.50     7.0   58    67           67    +9
6    Lady Renee           2    57.5    6    5.80     7.0   56    67           67    +11
7    Gift From Heaven     2    57.5    7    7.05     7.0   54    67           67    +13
8    Rogue Male           3    60.0    8    7.45     10.5  49    65           65    +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Triptothewoods 86 86 63 +23 7.0 -
2 Barnbougle 55 66 65 +1 10.5 -
3 Head Girl 72 62 81 -19 0.0 -
4 Ponte Vecchio Line 67 56 67 -11 7.0
5 Tuscany 58 53 67 -14 7.0 -
6 Lady Renee 56 64 67 -3 7.0 -
7 Gift From Heaven 54 51 67 -16 7.0 -
8 Rogue Male 49 50 65 -15 10.5 -
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