Official NHA Assessment

Race 2: www.tabonline.co.za MAIDEN SPECIAL WEIGHTS (For all Maidens)

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Line Horse
Sudden Song
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
6 / 13
Within 2 points
Significant Diffs
5 / 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    Professor Snape      2    58.0    1    0.00     0.0   -     78           6     +6
2    Nevada King          2    57.5    2    0.30     0.0   79    82           82    +3
3    Sudden Song          3    60.0    3    2.05     8.0   69    69           69    +0
4    Ready Or Not         2    59.0    4    3.05     0.0   82    82           82    +0
5    Storm Boulevard      3    58.0    5    3.25     8.0   -     64           64    +64
6    Jack Ryan            2    51.0    6    5.00     0.0   66    64           64    -2
7    Tuscan Gold          2    51.5    7    5.30     0.0   66    65           65    -1
8    Global Movement      6    56.0    8    5.70     0.0   61    74           74    +13
9    Caitlyns Boy         2    55.0    9    6.95     0.0   74    72           72    -2
10   Spice Captain        2    50.5    10   8.20     0.0   64    63           63    -1
11   Rogue Male           3    52.0    11   9.45     8.0   45    50           50    +5
12   Cider House Rules    2    57.5    12   16.70    0.0   79    77           77    -2
99   Madison Blues        3    58.0    99   0.00     8.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Professor Snape - 68 6 +62 0.0 -
2 Nevada King 79 80 82 -2 0.0 -
3 Sudden Song Line 69 71 69 +2 8.0
4 Ready Or Not 82 79 82 -3 0.0 -
5 Storm Boulevard - 64 64 ✓ Match 8.0 -
6 Jack Ryan 66 63 64 -1 0.0 -
7 Tuscan Gold 66 84 65 +19 0.0 -
8 Global Movement 61 65 74 -9 0.0 -
9 Caitlyns Boy 74 71 72 -1 0.0 -
10 Spice Captain 64 60 63 -3 0.0 -
11 Rogue Male 45 50 50 ✓ Match 8.0 -
12 Cider House Rules 79 69 77 -8 0.0 -
99 Madison Blues - 70 62 +8 8.0 -
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