Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN HANDICAP (For Maidens with 3 or more runs)

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Line Horse
King's Island
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Josephine's Pride    2    58.0    1    0.00     0.0   81    86           81    +0
2    King's Island        4    52.0    2    1.50     4.0   69    69           69    +0
3    King And Country     2    48.0    3    4.60     0.0   67    66           66    -1
4    Scampton             2    57.5    4    5.90     0.0   80    85           85    +5
5    Connoisseur          4    52.5    5    6.30     4.0   78    67           68    -10
6    Ibiza Night          2    52.0    6    8.40     0.0   55    74           74    +19
7    Basie Raakvat        4    54.5    7    9.60     4.0   74    71           71    -3
8    Zero Dawn            3    52.0    8    11.10    7.0   58    60           60    +2
9    Chilli Chacha        2    52.0    9    13.30    0.0   65    74           74    +9
10   Magic Prince         2    60.0    10   15.50    0.0   71    90           90    +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Josephine's Pride 81 86 81 +5 0.0 -
2 King's Island Line 69 72 69 +3 4.0
3 King And Country 67 67 66 +1 0.0 -
4 Scampton 80 70 85 -15 0.0 -
5 Connoisseur 78 56 68 -12 4.0 -
6 Ibiza Night 55 63 74 -11 0.0 -
7 Basie Raakvat 74 63 71 -8 4.0 -
8 Zero Dawn 58 55 60 -5 7.0 -
9 Chilli Chacha 65 55 74 -19 0.0 -
10 Magic Prince 71 66 90 -24 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