Official NHA Assessment

Race 9: TAB TELEBET 0861 000 822 CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Corvette Captain
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
7 / 12
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    Sabrina Fairchild    4    54.5    1    0.00     5.0   60    49           49    -11
2    Tallinn              5    58.5    2    0.70     0.0   68    67           67    -1
3    Back To Basics       3    56.0    3    1.20     4.5   69    53           59    -10
4    Zanetto              4    58.5    4    1.50     5.0   71    57           61    -10
5    Corvette Captain     5    60.0    5    1.70     0.0   70    70           70    +0
6    Looking Hot          3    56.5    6    1.95     4.5   71    54           61    -10
7    Life Goes On         7    58.0    7    2.20     0.0   67    66           66    -1
8    Snow Symphony        4    52.0    8    4.60     5.0   63    44           53    -10
9    Excellarator         3    58.0    9    6.70     4.5   72    57           62    -10
10   Freedom Dancer       4    54.0    10   9.90     5.0   53    48           48    -5
99   Urban Rock           5    54.0    99   0.00     0.0   -     58           58    +0
99   Java House           4    52.5    99   0.00     5.0   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sabrina Fairchild 60 60 49 +11 5.0 -
2 Tallinn 68 63 67 -4 0.0 -
3 Back To Basics 69 72 59 +13 4.5 -
4 Zanetto 71 86 61 +25 5.0 -
5 Corvette Captain Line 70 75 70 +5 0.0
6 Looking Hot 71 68 61 +7 4.5 -
7 Life Goes On 67 54 66 -12 0.0 -
8 Snow Symphony 63 50 53 -3 5.0 -
9 Excellarator 72 60 62 -2 4.5 -
10 Freedom Dancer 53 40 48 -8 5.0 -
99 Urban Rock - 54 58 -4 0.0 -
99 Java House - 52 45 +7 5.0 -
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