Official NHA Assessment

Race 3: WWW.TAB4RACING.COM MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA M)

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Line Horse
Iron Sky
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Hearts Thunder       4    60.0    1    0.00     5.0   56    72           62    +6
2    Fulliautomatix       3    60.0    2    0.15     4.5   60    73           73    +13
3    Iron Sky             3    60.0    3    0.20     4.5   73    73           73    +0
4    Camerata             2    57.5    4    1.00     3.0   72    71           71    -1
5    Kilbrannan Sound     2    60.0    5    2.50     3.0   56    76           76    +20
6    Brosnan              2    60.0    6    3.00     3.0   -     76           76    +76
7    Youre My Sunshine    3    60.0    7    5.50     4.5   -     73           73    +73
8    Stalker              3    57.5    8    14.00    4.5   41    68           68    +27
9    Rio Supremo          3    57.5    9    21.00    4.5   59    68           68    +9
10   Absolute Pleasure    2    57.5    10   25.00    3.0   69    71           71    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hearts Thunder 56 66 62 +4 5.0 -
2 Fulliautomatix 60 66 73 -7 4.5 -
3 Iron Sky Line 73 61 73 -12 4.5
4 Camerata 72 49 71 -22 3.0 -
5 Kilbrannan Sound 56 67 76 -9 3.0 -
6 Brosnan - 75 76 -1 3.0 -
7 Youre My Sunshine - 78 73 +5 4.5 -
8 Stalker 41 41 68 -27 4.5 -
9 Rio Supremo 59 52 68 -16 4.5 -
10 Absolute Pleasure 69 69 71 -2 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