Official NHA Assessment

Race 8: CAPE SUMMER FESTIVAL OF RACING MR 74 HANDICAP (Open)

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Line Horse
Bluff On Bluff
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Elusive Trader       6    60.5    1    0.00     0.0   75    85           75    +0
2    Bluff On Bluff       3    60.5    2    0.30     5.0   75    75           75    +0
3    Persistance          3    52.0    3    0.60     5.0   56    58           58    +2
4    Night Tiger          5    57.5    4    1.85     0.0   76    79           79    +3
5    Wyag                 2    59.5    5    2.35     3.5   80    76           76    -4
6    Superior Leader      4    55.0    6    2.85     6.0   64    62           62    -2
7    Wylie Jack           6    54.0    7    4.85     0.0   62    72           72    +10
8    Power Grid           8    58.0    8    9.10     0.0   70    80           80    +10
9    What A Thief         3    57.5    9    21.60    5.0   69    69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elusive Trader 75 72 75 -3 0.0 -
2 Bluff On Bluff Line 75 80 75 +5 5.0
3 Persistance 56 50 58 -8 5.0 -
4 Night Tiger 76 67 79 -12 0.0 -
5 Wyag 80 74 76 -2 3.5 -
6 Superior Leader 64 64 62 +2 6.0 -
7 Wylie Jack 62 61 72 -11 0.0 -
8 Power Grid 70 67 80 -13 0.0 -
9 What A Thief 69 69 69 ✓ Match 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