Official NHA Assessment

Race 2: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Great Notion
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
9 / 12
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    Pretty Precious      3    60.0    1    0.00     5.0   72    78           78    +6
2    Golden Alexia        3    60.0    2    1.00     5.0   -     78           78    +78
3    Great Notion         3    60.0    3    1.25     5.0   78    78           78    +0
4    Gimme A Storm        3    60.0    4    1.35     5.0   -     78           78    +78
5    Gimme A Call         3    60.0    5    4.65     5.0   -     78           78    +78
6    Aurora Green         3    58.5    6    6.75     5.0   -     75           75    +75
7    Blazing Sky          3    60.0    7    9.00     5.0   -     78           78    +78
8    Chilli Marmalade     5    60.0    8    34.25    0.0   63    88           88    +25
99   Green Street         3    60.0    99   0.00     5.0   -     78           78    +0
99   Sterling Silver      3    60.0    99   0.00     5.0   -     78           78    +0
99   Trail Runner         3    60.0    99   0.00     5.0   -     78           78    +0
99   Jilted               2    60.0    99   0.00     3.5   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pretty Precious 72 72 78 -6 5.0 -
2 Golden Alexia - 56 78 -22 5.0 -
3 Great Notion Line 78 87 78 +9 5.0
4 Gimme A Storm - 58 78 -20 5.0 -
5 Gimme A Call - 73 78 -5 5.0 -
6 Aurora Green - 72 75 -3 5.0 -
7 Blazing Sky - 46 78 -32 5.0 -
8 Chilli Marmalade 63 48 88 -40 0.0 -
99 Green Street - 66 78 -12 5.0 -
99 Sterling Silver - 50 78 -28 5.0 -
99 Trail Runner - 75 78 -3 5.0 -
99 Jilted - 65 81 -16 3.5 -
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