Official NHA Assessment

Race 2: HOLLYWOODBETS DURBANVILLE COUNTRY SERIES MAIDEN PLATE (For all Maidens)

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Line Horse
Lightning Glow
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Das Gute             4    58.0    1    0.00     4.5   78    -12          -     -78
2    Lightning Glow       2    58.0    2    1.50     0.0   -     -            -     +0
3    Firingonallengines   4    58.0    3    5.00     4.5   -     -12          -     +0
4    Resurgence           4    58.0    4    5.75     4.5   -     -12          -     +0
5    Lord Saye (GB)       3    60.0    5    6.15     7.0   -     -13          -     +0
6    Pompei Warning       2    58.0    6    6.65     0.0   73    -3           63    -10
7    Plus Four            2    58.0    7    7.65     0.0   -     -3           -     +0
8    Undercover Lover     4    58.0    8    8.90     4.5   -     -12          -     +0
9    Blue Bay             3    58.0    9    10.15    7.0   -     -17          -     +0
10   Sir Anthony          3    58.0    10   13.65    7.0   -     -17          -     +0
11   Mcenroe              3    58.0    11   13.95    7.0   -     -17          -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Das Gute 78 77 - +77 4.5 -
2 Lightning Glow Line - 92 - +92 0.0
3 Firingonallengines - 69 - +69 4.5 -
4 Resurgence - 57 - +57 4.5 -
5 Lord Saye (GB) - 62 - +62 7.0 -
6 Pompei Warning 73 75 63 +12 0.0 -
7 Plus Four - 87 - +87 0.0 -
8 Undercover Lover - 45 - +45 4.5 -
9 Blue Bay - 84 - +84 7.0 -
10 Sir Anthony - 50 - +50 7.0 -
11 Mcenroe - 23 - +23 7.0 -
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