Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 3 OCTOBER MR 75 HANDICAP (Open)

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Line Horse
Silent Trigger
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
9 / 14
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    Eiffel Tower         4    55.5    1    0.00     6.0   83    51           83    +0
2    Napoleon             3    59.0    2    1.25     8.5   73    57           63    -10
3    Follow My Path       5    52.0    3    2.00     0.0   55    59           59    +4
4    Silent Trigger       6    59.5    4    2.05     0.0   74    74           74    +0
5    Duke Of Rock         3    58.0    5    3.50     8.5   72    52           62    -10
6    Sage King            3    59.5    6    4.00     8.5   74    55           64    -10
7    Johnny Dogs          2    60.0    7    10.00    0.0   76    72           72    -4
8    Parker Getrix        4    54.5    8    10.25    6.0   64    49           54    -10
9    Vesuvio              5    59.0    9    10.75    0.0   74    70           70    -4
10   Gregor Macgregor     4    54.5    10   13.00    6.0   64    49           54    -10
11   Viva De Janeiro      5    58.5    11   16.00    0.0   73    69           69    -4
12   San Marzano          3    53.0    12   16.25    8.5   61    41           51    -10
13   Waqaas (AUS)         6    52.0    13   26.25    0.0   59    56           56    -3
14   Jusrite              3    54.5    14   37.00    8.5   65    44           55    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Eiffel Tower 83 69 83 -14 6.0 -
2 Napoleon 73 72 63 +9 8.5 -
3 Follow My Path 55 54 59 -5 0.0 -
4 Silent Trigger Line 74 60 74 -14 0.0
5 Duke Of Rock 72 76 62 +14 8.5 -
6 Sage King 74 72 64 +8 8.5 -
7 Johnny Dogs 76 67 72 -5 0.0 -
8 Parker Getrix 64 56 54 +2 6.0 -
9 Vesuvio 74 85 70 +15 0.0 -
10 Gregor Macgregor 64 63 54 +9 6.0 -
11 Viva De Janeiro 73 50 69 -19 0.0 -
12 San Marzano 61 53 51 +2 8.5 -
13 Waqaas (AUS) 59 56 56 ✓ Match 0.0 -
14 Jusrite 65 68 55 +13 8.5 -
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