Official NHA Assessment

Race 1: BETWAY INSUREBET MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Birthright
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 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    Jordan               4    58.0    1    0.00     5.0   -     83           6     +6
2    No Place Like Home   2    58.0    2    4.25     0.0   82    94           94    +12
3    Birthright           4    58.0    3    6.25     5.0   83    83           83    +0
4    Battle Of Kursk      2    58.0    4    7.25     0.0   77    93           93    +16
5    Holocene             4    58.0    5    7.75     5.0   78    83           83    +5
6    Pike Place           3    60.0    6    10.00    8.0   68    81           81    +13
7    The Donelly          3    60.0    7    17.00    8.0   63    81           81    +18
8    Livebythesword       2    58.0    8    27.00    0.0   -     93           93    +93
9    American Spirit      3    58.0    9    27.50    8.0   -     77           77    +77
99   Puerto Plata (ARG)   3    60.0    99   0.00     8.0   -     81           81    +0
99   Sky On Fire          4    58.0    99   0.00     5.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jordan - 88 6 +82 5.0 -
2 No Place Like Home 82 80 94 -14 0.0 -
3 Birthright Line 83 95 83 +12 5.0
4 Battle Of Kursk 77 76 93 -17 0.0 -
5 Holocene 78 76 83 -7 5.0 -
6 Pike Place 68 57 81 -24 8.0 -
7 The Donelly 63 62 81 -19 8.0 -
8 Livebythesword - 59 93 -34 0.0 -
9 American Spirit - 48 77 -29 8.0 -
99 Puerto Plata (ARG) - 68 81 -13 8.0 -
99 Sky On Fire - 60 83 -23 5.0 -
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