Official NHA Assessment

Race 5: CHAMPION MIDDLE DISTANCE EIGHT ON EIGHTEEN & CHAMPION STAYER HOLDING THUMBS B STAKES (For All Horses with a nett rating

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Line Horse
Boogiefied (AUS)
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Voorloopertjie       2    58.5    1    0.00     0.0   90    101          96    +6
2    Gold Dust            3    56.0    2    1.75     9.0   83    81           81    -2
3    Boogiefied (AUS)     4    55.5    3    2.25     7.0   84    84           84    +0
4    Please Be True       2    60.0    4    4.00     0.0   93    105          105   +12
5    Innamorare           5    60.0    5    4.40     0.0   91    104          104   +13
6    Omikami              2    54.5    6    5.65     0.0   90    93           93    +3
7    Aspect               2    61.5    7    7.90     0.0   94    107          107   +13
8    San Pedro            5    60.0    8    9.90     0.0   93    104          104   +11
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Voorloopertjie 90 96 96 ✓ Match 0.0 -
2 Gold Dust 83 74 81 -7 9.0 -
3 Boogiefied (AUS) Line 84 90 84 +6 7.0
4 Please Be True 93 93 105 -12 0.0 -
5 Innamorare 91 91 104 -13 0.0 -
6 Omikami 90 83 93 -10 0.0 -
7 Aspect 94 93 107 -14 0.0 -
8 San Pedro 93 82 104 -22 0.0 -
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