Official NHA Assessment

Race 2: OPEN A tabGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (For all Maidens)

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Line Horse
Ndaka
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
8 / 11
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    New Orleans          3    57.5    1    0.00     4.5   61    64           64    +3
2    Ndaka                3    60.0    2    0.90     4.5   69    69           69    +0
3    Specially Selected   3    60.0    3    1.20     4.5   74    69           69    -5
4    Addiena              3    53.5    4    3.80     4.5   -     56           56    +56
5    King's Spear         4    60.0    5    4.20     5.0   59    68           68    +9
6    Shot Of Courage      3    58.5    6    4.35     4.5   57    66           66    +9
7    Cupid's Captain      3    60.0    7    7.05     4.5   -     69           69    +69
8    Zuri's Star          3    56.0    8    7.85     4.5   59    61           61    +2
9    Crus Agentum         3    60.0    9    9.55     4.5   -     69           69    +69
10   Glam And Glitter     3    57.5    10   9.60     4.5   -     64           64    +64
99   Global Path          3    60.0    99   0.00     4.5   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 New Orleans 61 61 64 -3 4.5 -
2 Ndaka Line 69 61 69 -8 4.5
3 Specially Selected 74 72 69 +3 4.5 -
4 Addiena - 83 56 +27 4.5 -
5 King's Spear 59 54 68 -14 5.0 -
6 Shot Of Courage 57 73 66 +7 4.5 -
7 Cupid's Captain - - 69 -69 4.5 -
8 Zuri's Star 59 57 61 -4 4.5 -
9 Crus Agentum - 58 69 -11 4.5 -
10 Glam And Glitter - - 64 -64 4.5 -
99 Global Path - 59 69 -10 4.5 -
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