Official NHA Assessment

Race 7: WORLD SPORTS BETTING SPINAWINA SLOTS CAPE B STAKES (For All Horses with a nett rating of 94 & below)

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Line Horse
Sudden Song
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 10
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    Mucho Dinero         2    55.5    1    0.00     0.0   84    95           90    +6
2    Sudden Song          3    54.5    2    0.75     10.0  77    77           77    +0
3    Future Turn          5    60.0    3    1.05     0.0   92    108          108   +16
4    Selukwe              3    55.5    4    1.55     10.0  82    78           78    -4
5    Impetuous            2    57.0    5    1.85     0.0   85    101          101   +16
6    Royal Watch          4    58.5    6    7.10     7.0   88    87           87    -1
7    Coronation Time      2    57.0    7    10.85    0.0   85    98           98    +13
8    Guy Alexander        3    51.0    8    11.25    10.0  72    66           66    -6
9    Quatermain           2    52.5    9    13.50    0.0   76    89           89    +13
99   Natyam               5    57.0    99   0.00     0.0   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mucho Dinero 84 115 90 +25 0.0 -
2 Sudden Song Line 77 71 77 -6 10.0
3 Future Turn 92 78 108 -30 0.0 -
4 Selukwe 82 115 78 +37 10.0 -
5 Impetuous 85 74 101 -27 0.0 -
6 Royal Watch 88 80 87 -7 7.0 -
7 Coronation Time 85 80 98 -18 0.0 -
8 Guy Alexander 72 72 66 +6 10.0 -
9 Quatermain 76 79 89 -10 0.0 -
99 Natyam - 102 98 +4 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