Official NHA Assessment

Race 6: BETONTAB.CO.ZA PINNACLE STAKES (For all horses)

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Line Horse
Aqua Delta
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
6 / 13
Within 2 points
Significant Diffs
6 / 13
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    Global Drummer       4    59.5    1    0.00     2.0   113   92           92    -21
2    Greenlighttoheaven   4    58.0    2    0.50     2.0   91    94           94    +3
3    Legitimate           4    58.0    3    2.50     2.0   92    91           91    -1
4    Grazinginthegrass    4    59.5    4    2.75     2.0   98    94           94    -4
5    Aqua Delta           5    59.5    5    4.25     0.0   97    97           97    +0
6    Oscar Wilde          5    61.0    6    6.75     0.0   104   99           99    -5
7    Snow Report          5    59.5    7    10.25    0.0   98    96           96    -2
8    First Street         5    56.5    8    15.50    0.0   96    90           90    -6
9    Blingking            4    58.0    9    23.00    2.0   93    89           89    -4
10   Seven Patriots       5    61.0    10   28.50    0.0   101   99           99    -2
99   Wild Coast           5    62.0    99   0.00     0.0   -     101          101   +0
99   Arctic Drift         5    59.5    99   0.00     0.0   -     96           96    +0
99   Herodotus            6    58.0    99   0.00     0.0   -     93           93    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Global Drummer 113 110 92 +18 2.0 -
2 Greenlighttoheaven 91 83 94 -11 2.0 -
3 Legitimate 92 89 91 -2 2.0 -
4 Grazinginthegrass 98 111 94 +17 2.0 -
5 Aqua Delta Line 97 95 97 -2 0.0
6 Oscar Wilde 104 95 99 -4 0.0 -
7 Snow Report 98 94 96 -2 0.0 -
8 First Street 96 97 90 +7 0.0 -
9 Blingking 93 90 89 +1 2.0 -
10 Seven Patriots 101 83 99 -16 0.0 -
99 Wild Coast - 103 101 +2 0.0 -
99 Arctic Drift - 97 96 +1 0.0 -
99 Herodotus - 102 93 +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