Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING MAIDEN JUVENILE PLATE (For Maiden 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
9 / 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    Matsuyamo            2    60.0    1    0.00     0.0   -     -            -     +0
2    Indy View            2    60.0    2    0.75     0.0   -     -            -     +0
3    Can Col              2    60.0    3    1.00     0.0   -     -            -     +0
4    The Reflex           2    60.0    4    3.50     0.0   -     -            -     +0
5    Admirals Chance      5    60.0    5    4.75     0.0   -     -            -     +0
6    Douglas Devastator   2    60.0    6    4.85     0.0   -     -            -     +0
7    Forbidden Beast      2    60.0    7    5.35     0.0   -     -            -     +0
8    Badge Of Honour      2    60.0    8    8.60     0.0   -     -            -     +0
9    Elusive Jewel        2    57.0    9    9.85     0.0   -     -            -     +0
99   Twice A Saint        2    60.0    99   0.00     0.0   -     -            -     +0
99   Prince Of Heaven     2    60.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Matsuyamo - 78 - +78 0.0 -
2 Indy View - 76 - +76 0.0 -
3 Can Col - 71 - +71 0.0 -
4 The Reflex - 71 - +71 0.0 -
5 Admirals Chance - 77 - +77 0.0 -
6 Douglas Devastator - 64 - +64 0.0 -
7 Forbidden Beast - 70 - +70 0.0 -
8 Badge Of Honour - 54 - +54 0.0 -
9 Elusive Jewel - 57 - +57 0.0 -
99 Twice A Saint - 64 - - 0.0 -
99 Prince Of Heaven - 58 - - 0.0 -
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