Official NHA Assessment

Race 3: WSB BET WITH THE BEST MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
The Brief
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    The Brief            3    60.0    1    0.00     2.0   72    72           72    +0
2    Chasing Mavericks    4    60.0    2    0.60     1.0   58    79           79    +21
3    Dawn Mission         3    60.0    3    4.75     2.0   67    72           72    +5
4    Manz Knight          6    60.0    4    6.50     0.0   -     76           76    +76
5    Just Proccie         2    55.0    5    12.00    0.0   -     66           66    +66
5    Rishaan's Boy        3    60.0    5    12.00    2.0   56    72           72    +16
7    Atlantic City        3    60.0    7    12.65    2.0   66    72           72    +6
8    Grand Destiny        3    58.5    8    12.75    2.0   56    69           69    +13
9    Bulletin             3    58.5    9    22.00    2.0   53    69           69    +16
10   Choice Assorted      3    60.0    10   30.25    2.0   59    72           72    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Brief Line 72 90 72 +18 2.0
2 Chasing Mavericks 58 65 79 -14 1.0 -
3 Dawn Mission 67 56 72 -16 2.0 -
4 Manz Knight - 60 76 -16 0.0 -
5 Just Proccie - 67 66 +1 0.0 -
5 Rishaan's Boy 56 42 72 -30 2.0 -
7 Atlantic City 66 58 72 -14 2.0 -
8 Grand Destiny 56 55 69 -14 2.0 -
9 Bulletin 53 50 69 -19 2.0 -
10 Choice Assorted 59 59 72 -13 2.0 -
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