Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (For all Maidens)

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Line Horse
Dinero
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    All Systems Go       3    58.0    1    0.00     7.0   -     46           6     +6
2    Pick A Pomodoro      2    58.0    2    4.25     0.0   74    61           64    -10
3    Dinero               4    60.0    3    7.75     4.5   55    55           55    +0
4    Lacryma Christi      2    51.0    4    17.25    0.0   61    46           51    -10
5    Stalagmite           4    60.0    5    22.75    4.5   -     55           55    +55
6    Janneman Wat Kan     2    58.0    6    26.00    0.0   70    60           60    -10
99   Cadenza              4    60.0    99   0.00     4.5   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 All Systems Go - 102 6 +96 7.0 -
2 Pick A Pomodoro 74 67 64 +3 0.0 -
3 Dinero Line 55 51 55 -4 4.5
4 Lacryma Christi 61 59 51 +8 0.0 -
5 Stalagmite - 49 55 -6 4.5 -
6 Janneman Wat Kan 70 54 60 -6 0.0 -
99 Cadenza - 64 55 +9 4.5 -
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