Official NHA Assessment

Race 5: TAB TELEBET 0861 000 822 MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Antananarivo
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
5 / 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    Miss Christmas       3    60.0    1    0.00     2.5   59    53           53    -6
2    Antananarivo         4    60.0    2    1.25     1.0   62    62           62    +0
3    Lady Dynamo          3    60.0    3    1.75     2.5   44    58           58    +14
4    Aunt Pittypat        3    60.0    4    2.25     2.5   54    58           58    +4
5    All Rise             3    60.0    5    12.25    2.5   49    53           53    +4
6    The Work Of Life     3    60.0    6    15.25    2.5   57    53           53    -4
7    Alabama Storm        2    60.0    7    16.75    0.0   50    58           58    +8
8    Spring Of Elixir     3    60.0    8    17.25    2.5   57    53           53    -4
9    Liefdesondereinde    4    57.5    9    99.99    1.0   10    51           51    +41
99   Dusky Rose           3    60.0    99   0.00     2.5   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Miss Christmas 59 64 53 +11 2.5 -
2 Antananarivo Line 62 57 62 -5 1.0
3 Lady Dynamo 44 61 58 +3 2.5 -
4 Aunt Pittypat 54 65 58 +7 2.5 -
5 All Rise 49 50 53 -3 2.5 -
6 The Work Of Life 57 59 53 +6 2.5 -
7 Alabama Storm 50 47 58 -11 0.0 -
8 Spring Of Elixir 57 55 53 +2 2.5 -
9 Liefdesondereinde 10 10 51 -41 1.0 -
99 Dusky Rose - 58 53 +5 2.5 -
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