Official NHA Assessment

Race 5: TAB TELEBET 0861 000 822 FM 68 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Silvia Louise
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
5 / 14
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    Opera Swing          4    55.5    1    0.00     1.0   59    57           59    +0
2    Silvia Louise        4    52.0    2    4.25     1.0   52    52           52    +0
3    State Of Mind        4    57.5    3    5.50     1.0   63    61           61    -2
4    Lady Writer          3    60.0    4    5.75     2.0   72    64           64    -8
5    Hey Siri             2    58.0    5    6.00     0.0   68    64           64    -4
6    Maiden's Cove        3    55.5    6    6.25     2.0   59    55           55    -4
7    Sugarberry           2    61.5    7    6.75     0.0   75    71           71    -4
8    Get It Done          6    60.0    8    6.80     0.0   68    68           68    +0
9    Respectable Miss     4    58.0    9    8.05     1.0   64    62           62    -2
10   Trip To Barberton    2    55.0    10   8.30     0.0   62    58           58    -4
11   Name Of The Game     3    54.0    11   8.55     2.0   56    52           52    -4
12   Basetsana            5    56.0    12   8.80     0.0   60    60           60    +0
13   Cape Bouquet         3    57.0    13   20.05    2.0   62    58           58    -4
14   Raspberry Beret      3    58.5    14   24.30    2.0   65    61           61    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Opera Swing 59 82 59 +23 1.0 -
2 Silvia Louise Line 52 51 52 -1 1.0
3 State Of Mind 63 65 61 +4 1.0 -
4 Lady Writer 72 69 64 +5 2.0 -
5 Hey Siri 68 70 64 +6 0.0 -
6 Maiden's Cove 59 58 55 +3 2.0 -
7 Sugarberry 75 60 71 -11 0.0 -
8 Get It Done 68 71 68 +3 0.0 -
9 Respectable Miss 64 50 62 -12 1.0 -
10 Trip To Barberton 62 64 58 +6 0.0 -
11 Name Of The Game 56 53 52 +1 2.0 -
12 Basetsana 60 55 60 -5 0.0 -
13 Cape Bouquet 62 62 58 +4 2.0 -
14 Raspberry Beret 65 61 61 ✓ Match 2.0 -
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