Official NHA Assessment

Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Tres Chic
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 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    Golden Corn          2    60.0    1    0.00     0.0   71    84           77    +6
2    Tres Chic            4    60.0    2    0.75     3.5   81    81           81    +0
3    Fanny Kemble         2    60.0    3    1.05     0.0   76    88           88    +12
4    Nile The Boss        4    60.0    4    2.55     3.5   81    79           79    -2
5    Quick Trip           2    60.0    5    2.85     0.0   82    86           86    +4
6    Tequila Sky          4    60.0    6    3.60     3.5   80    78           78    -2
7    Listentotheocean     2    60.0    7    7.85     0.0   78    84           84    +6
8    True Horizon         4    60.0    8    30.10    3.5   62    77           77    +15
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Corn 71 60 77 -17 0.0 -
2 Tres Chic Line 81 52 81 -29 3.5
3 Fanny Kemble 76 68 88 -20 0.0 -
4 Nile The Boss 81 52 79 -27 3.5 -
5 Quick Trip 82 82 86 -4 0.0 -
6 Tequila Sky 80 74 78 -4 3.5 -
7 Listentotheocean 78 69 84 -15 0.0 -
8 True Horizon 62 60 77 -17 3.5 -
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