Official NHA Assessment

Race 4: TRACK AND BALL - STANGER PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Lillybelle
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Southern Cape        3    60.0    1    0.00     2.0   91    88           88    -3
2    Ice Sunsation        6    58.0    2    1.05     0.0   87    92           92    +5
3    Alphabetty           5    56.5    3    1.65     0.0   88    88           88    +0
4    Lillybelle           6    55.0    4    2.85     0.0   84    84           84    +0
5    Woodland Retreat     2    60.0    5    3.10     0.0   95    94           94    -1
6    Aquae Sulis          5    57.0    6    5.00     0.0   85    86           86    +1
7    Lady Tiptree         3    57.0    7    10.20    2.0   85    82           82    -3
8    Let It Snow          2    57.5    8    16.50    0.0   90    87           87    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Southern Cape 91 96 88 +8 2.0 -
2 Ice Sunsation 87 90 92 -2 0.0 -
3 Alphabetty 88 71 88 -17 0.0 -
4 Lillybelle Line 84 73 84 -11 0.0
5 Woodland Retreat 95 75 94 -19 0.0 -
6 Aquae Sulis 85 69 86 -17 0.0 -
7 Lady Tiptree 85 68 82 -14 2.0 -
8 Let It Snow 90 61 87 -26 0.0 -
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