Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Silver Tudor
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Time To The Moon     3    57.0    1    0.00     2.5   -     54           6     +6
2    Silver Tudor         5    60.0    2    0.50     0.0   70    70           70    +0
3    Blyde River          4    60.0    3    6.00     1.0   43    63           63    +20
4    I'm A Man            2    60.0    4    13.25    0.0   65    65           65    +0
5    Royal Raphael        3    60.0    5    22.75    2.5   64    60           60    -4
6    Going Global         3    60.0    6    24.50    2.5   52    60           60    +8
7    Night Vibe           4    60.0    7    35.75    1.0   -     63           63    +63
8    Severide             3    60.0    8    99.99    2.5   65    60           60    -5
99   Shiny Silva          3    57.0    99   0.00     2.5   -     54           54    +0
99   Giocatore            2    60.0    99   0.00     0.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Time To The Moon - 63 6 +57 2.5 -
2 Silver Tudor Line 70 99 70 +29 0.0
3 Blyde River 43 48 63 -15 1.0 -
4 I'm A Man 65 69 65 +4 0.0 -
5 Royal Raphael 64 54 60 -6 2.5 -
6 Going Global 52 50 60 -10 2.5 -
7 Night Vibe - 12 63 -51 1.0 -
8 Severide 65 73 60 +13 2.5 -
99 Shiny Silva - 42 54 -12 2.5 -
99 Giocatore - 67 65 +2 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