Official NHA Assessment

Race 7: WWW.TAB4RACING.COM WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Warbonnet Creek (IRE)
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Treaty               2    55.0    1    0.00     0.0   58    53           53    -5
2    Godfather            2    58.0    2    3.00     0.0   65    61           61    -4
3    Warbonnet Creek (IR  4    60.0    3    3.10     4.0   57    57           57    +0
4    Robert Burns         3    60.0    4    3.75     7.0   68    50           58    -10
5    Lorna Lilly          3    55.0    5    6.75     7.0   -     39           39    +39
6    Pembroke             3    58.0    6    7.75     7.0   -     45           45    +45
7    Carnelo              6    60.0    7    8.00     0.0   61    63           63    +2
8    Kanimambo            5    58.0    8    13.50    0.0   -     59           59    +59
9    Thermopylae          2    58.0    9    15.00    0.0   78    59           68    -10
10   Tyger Fly            4    60.0    10   15.75    4.0   61    55           55    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Treaty 58 48 53 -5 0.0 -
2 Godfather 65 57 61 -4 0.0 -
3 Warbonnet Creek (IRE) Line 57 56 57 -1 4.0
4 Robert Burns 68 71 58 +13 7.0 -
5 Lorna Lilly - 50 39 +11 7.0 -
6 Pembroke - 79 45 +34 7.0 -
7 Carnelo 61 75 63 +12 0.0 -
8 Kanimambo - 59 59 ✓ Match 0.0 -
9 Thermopylae 78 54 68 -14 0.0 -
10 Tyger Fly 61 49 55 -6 4.0 -
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