Official NHA Assessment

Race 1: 4RACING WELCOMES YOU 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
2 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 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    Exceedingly Glam     3    60.0    1    0.00     5.0   81    78           78    -3
2    Dupont Emerald       3    58.5    2    0.50     5.0   -     75           75    +75
3    Great Notion         3    60.0    3    2.40     5.0   78    78           78    +0
4    Gimme A Call         3    60.0    4    4.65     5.0   -     78           78    +78
5    Tipperary            3    60.0    5    7.35     5.0   77    78           78    +1
6    Nkwenkwezi           3    60.0    6    7.65     5.0   -     78           78    +78
7    Mist In Ireland      3    60.0    7    9.05     5.0   -     78           78    +78
8    Chasing The Crown    3    60.0    8    11.25    5.0   57    78           78    +21
9    Che Signora          3    60.0    9    23.75    5.0   -     78           78    +78
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Exceedingly Glam 81 78 78 ✓ Match 5.0 -
2 Dupont Emerald - 77 75 +2 5.0 -
3 Great Notion Line 78 87 78 +9 5.0
4 Gimme A Call - 73 78 -5 5.0 -
5 Tipperary 77 64 78 -14 5.0 -
6 Nkwenkwezi - 78 78 ✓ Match 5.0 -
7 Mist In Ireland - 72 78 -6 5.0 -
8 Chasing The Crown 57 46 78 -32 5.0 -
9 Che Signora - 50 78 -28 5.0 -
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