Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 31 OCTOBER FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Queen Of Jazz
Reference for assessment
Exact Matches
1 / 15
Calculated = Official
Close Matches
4 / 15
Within 2 points
Significant Diffs
6 / 15
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    Happy Wives          3    60.5    1    0.00     8.5   67    61           67    +0
2    Make Believe         2    61.0    2    4.25     5.5   79    68           69    -10
3    Queen Of Jazz        2    59.5    3    4.75     5.5   65    65           65    +0
4    Piton De Neige       4    54.0    4    5.25     10.0  54    45           45    -9
5    Canford Queen        3    57.5    5    7.50     8.5   60    55           55    -5
6    Genovefa             3    60.5    6    8.00     8.5   67    61           61    -6
7    Party Girl           3    59.0    7    9.50     8.5   75    58           65    -10
8    True Design          3    53.5    8    9.75     8.5   53    47           47    -6
9    Cape Capri           2    57.0    9    10.00    5.5   60    60           60    +0
10   Panthera Uncia       3    58.5    10   10.50    8.5   68    57           58    -10
11   Gaelic Dancer        3    57.5    11   12.75    8.5   69    55           59    -10
12   Physiologus          2    55.0    12   16.00    5.5   64    56           56    -8
13   Darlingbudsofmay     2    58.0    13   19.00    5.5   73    62           63    -10
99   Beneath The Moon     2    56.5    99   0.00     5.5   -     59           59    +0
99   Ice Cap              3    56.0    99   0.00     8.5   -     52           52    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Happy Wives 67 80 67 +13 8.5 -
2 Make Believe 79 81 69 +12 5.5 -
3 Queen Of Jazz Line 65 63 65 -2 5.5
4 Piton De Neige 54 57 45 +12 10.0 -
5 Canford Queen 60 59 55 +4 8.5 -
6 Genovefa 67 72 61 +11 8.5 -
7 Party Girl 75 73 65 +8 8.5 -
8 True Design 53 52 47 +5 8.5 -
9 Cape Capri 60 63 60 +3 5.5 -
10 Panthera Uncia 68 60 58 +2 8.5 -
11 Gaelic Dancer 69 64 59 +5 8.5 -
12 Physiologus 64 53 56 -3 5.5 -
13 Darlingbudsofmay 73 70 63 +7 5.5 -
99 Beneath The Moon - 59 59 ✓ Match 5.5 -
99 Ice Cap - 54 52 +2 8.5 -
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