Official NHA Assessment

Race 3: TAB 4RACING APP MAIDEN PLATE (For all Maidens)

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Line Horse
Vuvuzela Umlilo
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 9
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    Last Storm           2    59.0    1    0.00     0.0   73    71           71    -2
2    Vuvuzela Umlilo      2    59.0    2    3.50     0.0   72    72           72    +0
3    Copernicus           3    60.0    3    4.50     6.0   67    61           61    -6
4    The Last Belle       2    59.0    4    6.25     0.0   66    71           71    +5
5    Greek Mafia          5    60.0    5    10.25    0.0   54    73           73    +19
6    Sunset Reaper        2    59.0    6    14.00    0.0   60    71           71    +11
7    Western Jack         3    59.0    7    20.25    6.0   -     59           59    +59
8    Imperial Winter      3    59.0    8    37.50    6.0   -     59           59    +59
99   Coup Royal           3    60.0    99   0.00     6.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Last Storm 73 66 71 -5 0.0 -
2 Vuvuzela Umlilo Line 72 67 72 -5 0.0
3 Copernicus 67 67 61 +6 6.0 -
4 The Last Belle 66 59 71 -12 0.0 -
5 Greek Mafia 54 45 73 -28 0.0 -
6 Sunset Reaper 60 51 71 -20 0.0 -
7 Western Jack - 50 59 -9 6.0 -
8 Imperial Winter - - 59 -59 6.0 -
99 Coup Royal - 53 61 -8 6.0 -
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