Official NHA Assessment

Race 5: RaceCape Powered By Hollywoodbets MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Heliotrope
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Family Power         4    58.0    1    0.00     3.5   80    78           70    -10
2    English Mistress     4    58.0    2    1.00     3.5   78    84           84    +6
3    Sansa Stark          4    58.0    3    2.50     3.5   81    82           82    +1
4    Heliotrope           3    58.0    4    3.75     7.0   73    73           73    +0
5    Doitwithdiamonds     4    58.0    5    6.50     3.5   70    78           78    +8
6    Bo Kaap              3    60.0    6    6.90     7.0   56    75           75    +19
7    Princess Of Bayeux   2    58.0    7    8.65     0.0   66    85           85    +19
8    Miss Lemonade        2    58.0    8    10.40    0.0   65    85           85    +20
9    Millennium Dancer    4    58.0    9    13.65    3.5   53    78           78    +25
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Family Power 80 87 70 +17 3.5 -
2 English Mistress 78 70 84 -14 3.5 -
3 Sansa Stark 81 63 82 -19 3.5 -
4 Heliotrope Line 73 67 73 -6 7.0
5 Doitwithdiamonds 70 99 78 +21 3.5 -
6 Bo Kaap 56 56 75 -19 7.0 -
7 Princess Of Bayeux 66 75 85 -10 0.0 -
8 Miss Lemonade 65 56 85 -29 0.0 -
9 Millennium Dancer 53 50 78 -28 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