Official NHA Assessment

Race 4: TAB 4RACING APP MAIDEN PLATE (For all Maidens)

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Line Horse
Sixtyzero
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Disruptive           2    60.0    1    0.00     0.0   52    76           58    +6
2    Lady Limoncello      4    57.0    2    2.25     1.5   66    70           70    +4
3    Sixtyzero            3    57.5    3    2.30     3.0   67    67           67    +0
4    Salagadoola          2    57.0    4    3.05     0.0   68    72           72    +4
5    Farmer's Tan         2    60.0    5    3.15     0.0   55    78           78    +23
6    The Scarlet Cat      2    53.0    6    3.25     0.0   58    64           64    +6
7    Night In Japan       3    57.0    7    6.25     3.0   51    64           64    +13
8    Am Still Winning     3    53.0    8    8.50     3.0   54    56           56    +2
9    Amanzimtexas         3    60.0    9    9.75     3.0   57    70           70    +13
10   Sabrage              3    57.5    10   10.25    3.0   51    65           65    +14
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Disruptive 52 69 58 +11 0.0 -
2 Lady Limoncello 66 65 70 -5 1.5 -
3 Sixtyzero Line 67 66 67 -1 3.0
4 Salagadoola 68 66 72 -6 0.0 -
5 Farmer's Tan 55 61 78 -17 0.0 -
6 The Scarlet Cat 58 56 64 -8 0.0 -
7 Night In Japan 51 49 64 -15 3.0 -
8 Am Still Winning 54 51 56 -5 3.0 -
9 Amanzimtexas 57 55 70 -15 3.0 -
10 Sabrage 51 51 65 -14 3.0 -
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