Official NHA Assessment

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

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Line Horse
Rafa Bay
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 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    Across The Bow       3    60.0    1    0.00     10.5  66    79           72    +6
2    Rafa Bay             2    58.0    2    1.50     7.0   82    82           82    +0
3    Masterofthedesert    2    58.0    3    1.90     7.0   -     82           82    +82
4    Fencing Captain      2    58.0    4    2.30     7.0   -     82           82    +82
5    Maneki Neko          2    60.0    5    2.60     7.0   70    86           86    +16
6    Seeking The Life     2    60.0    6    7.60     7.0   -     86           86    +86
7    Warbird              3    55.5    7    12.35    10.5  -     70           70    +70
8    Fashion Flyer        3    58.0    8    17.10    10.5  -     75           75    +75
99   Digby                2    58.0    99   0.00     7.0   -     82           82    +0
99   Okavango             3    58.0    99   0.00     10.5  -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Across The Bow 66 57 72 -15 10.5 -
2 Rafa Bay Line 82 96 82 +14 7.0
3 Masterofthedesert - 86 82 +4 7.0 -
4 Fencing Captain - 76 82 -6 7.0 -
5 Maneki Neko 70 60 86 -26 7.0 -
6 Seeking The Life - 60 86 -26 7.0 -
7 Warbird - 75 70 +5 10.5 -
8 Fashion Flyer - - 75 -75 10.5 -
99 Digby - 77 82 -5 7.0 -
99 Okavango - 123 75 +48 10.5 -
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