Official NHA Assessment

Race 1: Hollywoodbets DURBANVILLE WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Moody Blue
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    William's Woman      3    52.5    1    0.00     8.5   -     54           6     +6
2    That'll B The Day    2    59.0    2    0.20     5.5   81    73           73    -8
3    Digby                2    60.0    3    2.20     5.5   72    75           75    +3
4    Moody Blue           3    60.0    4    3.20     8.5   69    69           69    +0
5    Slash 'N Burn (IRE)  3    59.0    5    4.95     8.5   -     67           67    +67
6    Mr Moustache         2    59.0    6    5.00     5.5   -     73           73    +73
7    Oh So Onederful      3    55.0    7    5.20     8.5   -     59           59    +59
8    Simbine              2    59.0    8    5.70     5.5   81    73           73    -8
9    Rosa Osiria          3    57.5    9    8.45     8.5   60    64           64    +4
10   Straight Red         3    59.0    10   14.95    8.5   -     67           67    +67
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 William's Woman - 71 6 +65 8.5 -
2 That'll B The Day 81 81 73 +8 5.5 -
3 Digby 72 77 75 +2 5.5 -
4 Moody Blue Line 69 75 69 +6 8.5
5 Slash 'N Burn (IRE) - 79 67 +12 8.5 -
6 Mr Moustache - 67 73 -6 5.5 -
7 Oh So Onederful - 66 59 +7 8.5 -
8 Simbine 81 78 73 +5 5.5 -
9 Rosa Osiria 60 57 64 -7 8.5 -
10 Straight Red - 51 67 -16 8.5 -
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