Official NHA Assessment

Race 4: CAPE TURF CLUB SYNDICATES MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Thingamabob
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 8
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    American Ultra       2    60.0    1    0.00     1.5   -     2            2     +2
2    Fleur De Ville       3    57.5    2    1.00     2.5   69    -5           59    -10
3    Thingamabob          3    60.0    3    1.75     2.5   -     -            -     +0
4    Ruby Rex             3    60.0    4    1.95     2.5   75    -            72    -3
5    Nebulous             2    57.0    5    2.25     1.5   -     -4           -     +0
6    Swift Serenity       2    57.0    6    3.75     1.5   -     -4           -     +0
7    Larking About        3    60.0    7    6.25     2.5   -     -            -     +0
8    Market Trends        3    60.0    8    6.35     2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 American Ultra - 76 2 +74 1.5 -
2 Fleur De Ville 69 60 59 +1 2.5 -
3 Thingamabob Line - 73 - +73 2.5
4 Ruby Rex 75 74 72 +2 2.5 -
5 Nebulous - 77 - +77 1.5 -
6 Swift Serenity - 74 - +74 1.5 -
7 Larking About - 55 - +55 2.5 -
8 Market Trends - 50 - +50 2.5 -
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