Official NHA Assessment

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

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Line Horse
Casino Ace
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    Navajo Dancer        2    59.0    1    0.00     5.0   -     56           6     +6
2    Casino Ace           5    60.0    2    3.25     0.0   68    68           68    +0
3    Barnbougle           3    60.0    3    5.50     7.5   68    53           58    -10
4    Consigliere          3    59.0    4    5.70     7.5   -     51           51    +51
5    Newton Heath         3    59.0    5    6.95     7.5   64    51           54    -10
6    Old Q                3    59.0    6    8.95     7.5   -     51           51    +51
7    Daimyo               3    59.0    7    9.45     7.5   -     51           51    +51
8    Lasting Influence    3    59.0    8    11.70    7.5   -     51           51    +51
9    Little Lexi          3    56.5    9    12.20    7.5   -     46           46    +46
99   Sophia Raie          2    57.5    99   0.00     5.0   -     53           53    +0
99   Roll Of The Dice     3    59.0    99   0.00     7.5   -     51           51    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Navajo Dancer - 56 6 +50 5.0 -
2 Casino Ace Line 68 56 68 -12 0.0
3 Barnbougle 68 66 58 +8 7.5 -
4 Consigliere - 70 51 +19 7.5 -
5 Newton Heath 64 60 54 +6 7.5 -
6 Old Q - - 51 -51 7.5 -
7 Daimyo - 105 51 +54 7.5 -
8 Lasting Influence - - 51 -51 7.5 -
9 Little Lexi - 59 46 +13 7.5 -
99 Sophia Raie - - 53 -53 5.0 -
99 Roll Of The Dice - 81 51 +30 7.5 -
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