Official NHA Assessment

Race 9: CAPE OF GOOD HOPE MR 80 HANDICAP (Open)

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Line Horse
Paper Trail
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
3 / 16
Within 2 points
Significant Diffs
9 / 16
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    Han Solo             5    58.5    1    0.00     0.0   77    80           77    +0
2    Veni Vidi Vicci      4    59.5    2    2.25     2.5   79    80           80    +1
3    Paper Trail          4    61.5    3    3.00     2.5   83    83           83    +0
4    Surjay               3    59.0    4    3.05     4.0   87    75           77    -10
5    Sun Dazed            6    57.5    5    3.15     0.0   84    80           80    -4
6    All Lit Up           4    59.5    6    3.65     2.5   79    78           78    -1
7    You Know Who         3    57.0    7    4.90     4.0   88    69           78    -10
8    Queen's Wood         3    56.0    8    5.00     4.0   81    67           71    -10
9    Poltergeist          3    56.0    9    5.50     4.0   81    67           71    -10
10   Dragonfly            3    60.0    10   5.55     4.0   89    75           79    -10
11   Fort Red             4    58.0    11   6.80     2.5   76    74           74    -2
12   Path Of Choice       5    59.5    12   7.55     0.0   79    82           82    +3
13   Que Shiraz           3    58.5    13   8.55     4.0   86    72           76    -10
14   Aus Bob              3    58.0    14   8.95     4.0   85    71           75    -10
99   Gem King             6    53.5    99   0.00     0.0   -     70           70    +0
99   Double Charge        5    60.0    99   0.00     0.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Han Solo 77 102 77 +25 0.0 -
2 Veni Vidi Vicci 79 82 80 +2 2.5 -
3 Paper Trail Line 83 60 83 -23 2.5
4 Surjay 87 121 77 +44 4.0 -
5 Sun Dazed 84 64 80 -16 0.0 -
6 All Lit Up 79 76 78 -2 2.5 -
7 You Know Who 88 91 78 +13 4.0 -
8 Queen's Wood 81 74 71 +3 4.0 -
9 Poltergeist 81 71 71 ✓ Match 4.0 -
10 Dragonfly 89 71 79 -8 4.0 -
11 Fort Red 76 66 74 -8 2.5 -
12 Path Of Choice 79 68 82 -14 0.0 -
13 Que Shiraz 86 72 76 -4 4.0 -
14 Aus Bob 85 70 75 -5 4.0 -
99 Gem King - 108 70 +38 0.0 -
99 Double Charge - 80 83 -3 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