Official NHA Assessment

Race 6: PERFECTLY PLACED CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Touchdown
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 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    Please Be True       2    60.0    1    0.00     0.0   86    78           78    -8
2    Boogiefied (AUS)     4    58.5    2    0.05     2.0   75    71           71    -4
3    Touchdown            4    56.5    3    1.05     2.0   71    71           71    +0
4    Impetuous            2    59.0    4    2.80     0.0   76    78           78    +2
5    King's Quest         3    60.0    5    2.90     4.0   86    72           76    -10
6    Scalini              2    58.0    6    4.90     0.0   74    74           74    +0
7    Winter Pearl         6    57.5    7    6.65     0.0   73    73           73    +0
8    Tsunami Warning      3    57.5    8    6.85     4.0   73    65           65    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Please Be True 86 93 78 +15 0.0 -
2 Boogiefied (AUS) 75 90 71 +19 2.0 -
3 Touchdown Line 71 73 71 +2 2.0
4 Impetuous 76 74 78 -4 0.0 -
5 King's Quest 86 89 76 +13 4.0 -
6 Scalini 74 70 74 -4 0.0 -
7 Winter Pearl 73 71 73 -2 0.0 -
8 Tsunami Warning 73 73 65 +8 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