Official NHA Assessment

Race 2: TAB TELEBET 0861 000 822 MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Rio Supremo
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Time For Charity     5    60.0    1    0.00     0.0   69    71           70    +1
2    Camerata             2    60.0    2    2.50     3.5   74    64           64    -10
3    Primrose Path        2    60.0    3    6.00     3.5   49    64           64    +15
4    Rio Supremo          3    60.0    4    6.25     5.0   61    61           61    +0
5    Magical Stones       3    60.0    5    8.25     5.0   -     61           61    +61
6    Leahlicious          3    60.0    6    10.50    5.0   -     61           61    +61
99   Amor Perdido         3    60.0    99   0.00     5.0   -     61           61    +0
99   Adrenaline Rush      2    60.0    99   0.00     3.5   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Time For Charity 69 61 70 -9 0.0 -
2 Camerata 74 49 64 -15 3.5 -
3 Primrose Path 49 77 64 +13 3.5 -
4 Rio Supremo Line 61 52 61 -9 5.0
5 Magical Stones - 46 61 -15 5.0 -
6 Leahlicious - 42 61 -19 5.0 -
99 Amor Perdido - - 61 -61 5.0 -
99 Adrenaline Rush - 45 64 -19 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