Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Amarandi
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Amarandi             3    60.0    1    0.00     3.0   74    74           74    +0
2    Milktart             3    60.0    2    2.30     3.0   -     74           74    +74
3    Cinnamon Blush       3    60.0    3    4.90     3.0   -     74           74    +74
4    Natasha Rostov       3    58.5    4    8.20     3.0   60    71           71    +11
5    Autumn Spirit        3    57.5    5    8.60     3.0   60    69           69    +9
6    Whispering Green     4    60.0    6    17.30    3.5   50    73           73    +23
7    Green Sleeves        3    60.0    7    18.70    3.0   64    74           74    +10
8    Chasing Time         2    57.0    8    20.00    2.0   -     70           70    +70
9    Ygritte              2    57.0    9    22.30    2.0   -     70           70    +70
99   Run Again            3    60.0    99   0.00     3.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Amarandi Line 74 91 74 +17 3.0
2 Milktart - - 74 -74 3.0 -
3 Cinnamon Blush - 66 74 -8 3.0 -
4 Natasha Rostov 60 53 71 -18 3.0 -
5 Autumn Spirit 60 53 69 -16 3.0 -
6 Whispering Green 50 49 73 -24 3.5 -
7 Green Sleeves 64 56 74 -18 3.0 -
8 Chasing Time - 47 70 -23 2.0 -
9 Ygritte - 69 70 -1 2.0 -
99 Run Again - 48 74 -26 3.0 -
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