Official NHA Assessment

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

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 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    Beerenberg           2    60.0    1    0.00     0.5   -     -            -     +0
2    Horsey               2    60.0    2    2.75     0.5   -     -            -     +0
3    Dammi                2    60.0    3    3.00     0.5   -     -            -     +0
4    Russian Empire       5    58.5    4    4.50     0.0   -     -            -     +0
5    Likeable             2    57.5    5    6.75     0.5   -     -            -     +0
6    Siberian Fox         2    60.0    6    7.50     0.5   -     -            -     +0
7    This Time Round      2    60.0    7    8.25     0.5   -     -            -     +0
8    Foot Soldier         2    60.0    8    9.50     0.5   -     -            -     +0
9    Prince Of Heaven     2    60.0    9    9.60     0.5   -     -            -     +0
10   Saturn Queen         2    57.5    10   9.70     0.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Beerenberg - 76 - +76 0.5 -
2 Horsey - 71 - +71 0.5 -
3 Dammi - 55 - +55 0.5 -
4 Russian Empire - 53 - +53 0.0 -
5 Likeable - 62 - +62 0.5 -
6 Siberian Fox - 62 - +62 0.5 -
7 This Time Round - 54 - +54 0.5 -
8 Foot Soldier - 74 - +74 0.5 -
9 Prince Of Heaven - 58 - +58 0.5 -
10 Saturn Queen - 42 - +42 0.5 -
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