Official NHA Assessment

Race 4: WSB BET WITH THE BEST MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
The Merciful
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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    Mo Ment              4    60.0    1    0.00     4.5   65    48           48    -17
2    Mishrah              3    60.0    2    2.50     8.0   57    45           47    -10
3    The Merciful         5    60.0    3    3.50     0.0   59    59           59    +0
4    Alakanani            4    60.0    4    12.50    4.5   66    48           56    -10
5    Aftershock           3    53.5    5    22.50    8.0   55    28           45    -10
6    Beverly Baby         3    53.5    6    29.00    8.0   50    28           40    -10
7    Fa So La Ti Do       3    53.5    7    99.99    8.0   48    28           38    -10
99   Santiago's Pride     3    57.0    99   0.00     8.0   -     35           35    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mo Ment 65 93 48 +45 4.5 -
2 Mishrah 57 61 47 +14 8.0 -
3 The Merciful Line 59 54 59 -5 0.0
4 Alakanani 66 59 56 +3 4.5 -
5 Aftershock 55 57 45 +12 8.0 -
6 Beverly Baby 50 53 40 +13 8.0 -
7 Fa So La Ti Do 48 48 38 +10 8.0 -
99 Santiago's Pride - 76 35 +41 8.0 -
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