Official NHA Assessment

Race 10: NEXT VAAL RACEMEETING THURSDAY 17 APRIL MR 74 HANDICAP (Open)

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Line Horse
Coppola
Reference for assessment
Exact Matches
1 / 18
Calculated = Official
Close Matches
4 / 18
Within 2 points
Significant Diffs
9 / 18
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    59.5    1    0.00     1.0   73    71           73    +0
2    Coppola              4    59.0    2    2.75     1.0   72    72           72    +0
3    Whispers Of War (AU  7    56.0    3    3.15     0.0   66    68           68    +2
4    Call Me Master       8    56.5    4    4.40     0.0   67    67           67    +0
5    Clarkson             4    59.5    5    4.80     1.0   73    71           71    -2
6    Sail The Sky         4    51.5    6    5.80     1.0   65    55           55    -10
7    Sea Shanty           4    53.5    7    6.00     1.0   66    59           59    -7
8    Sneak Preview        3    57.5    8    6.25     2.5   69    64           64    -5
9    Libeccio             5    57.5    9    9.50     0.0   69    69           69    +0
10   After Hours          7    57.5    10   11.25    0.0   69    69           69    +0
11   Kwagga Blitz         2    60.0    11   11.75    0.0   79    74           74    -5
12   Callaburn            2    49.0    12   15.00    0.0   60    52           52    -8
13   Chabal               3    59.0    13   17.75    2.5   77    67           67    -10
14   Circle Of Grace      4    57.5    14   19.25    1.0   69    67           67    -2
15   Thunderbird          4    59.5    15   24.50    1.0   73    71           71    -2
99   Kiss Of Fire         5    55.5    99   0.00     0.0   -     65           65    +0
99   Viva De Janeiro      5    53.0    99   0.00     0.0   -     60           60    +0
99   Vava Vegas           5    56.5    99   0.00     0.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Eiffel Tower 73 69 73 -4 1.0 -
2 Coppola Line 72 83 72 +11 1.0
3 Whispers Of War (AUS) 66 64 68 -4 0.0 -
4 Call Me Master 67 65 67 -2 0.0 -
5 Clarkson 73 75 71 +4 1.0 -
6 Sail The Sky 65 62 55 +7 1.0 -
7 Sea Shanty 66 71 59 +12 1.0 -
8 Sneak Preview 69 63 64 -1 2.5 -
9 Libeccio 69 62 69 -7 0.0 -
10 After Hours 69 79 69 +10 0.0 -
11 Kwagga Blitz 79 79 74 +5 0.0 -
12 Callaburn 60 52 52 ✓ Match 0.0 -
13 Chabal 77 73 67 +6 2.5 -
14 Circle Of Grace 69 51 67 -16 1.0 -
15 Thunderbird 73 70 71 -1 1.0 -
99 Kiss Of Fire - 68 65 +3 0.0 -
99 Viva De Janeiro - 50 60 -10 0.0 -
99 Vava Vegas - 58 67 -9 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