Official NHA Assessment

Race 5: TAB TELEBET 0861 000 822 FM 80 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Tallinn
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
7 / 11
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    La Valliere          3    55.5    1    0.00     5.0   78    61           78    +0
2    Benguela Cove        3    57.0    2    0.25     5.0   81    64           71    -10
3    Tallinn              5    55.5    3    2.25     0.0   71    71           71    +0
4    Goddess Of Light     3    57.0    4    3.35     5.0   81    64           71    -10
5    Dubawi Princess      4    61.5    5    5.00     6.0   83    71           73    -10
6    High Born Lady       4    59.0    6    5.20     6.0   78    66           68    -10
7    Bat Out Of Hell      4    58.5    7    9.00     6.0   77    65           67    -10
8    Spiritofthegroove    5    58.5    8    10.25    0.0   77    77           77    +0
9    Elusive Woman        4    59.5    9    12.50    6.0   79    67           69    -10
10   Florentine           4    59.5    10   12.60    6.0   79    67           69    -10
11   Hey Gorgeous         4    59.0    11   16.60    6.0   78    66           68    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 La Valliere 78 83 78 +5 5.0 -
2 Benguela Cove 81 62 71 -9 5.0 -
3 Tallinn Line 71 63 71 -8 0.0
4 Goddess Of Light 81 63 71 -8 5.0 -
5 Dubawi Princess 83 82 73 +9 6.0 -
6 High Born Lady 78 72 68 +4 6.0 -
7 Bat Out Of Hell 77 65 67 -2 6.0 -
8 Spiritofthegroove 77 65 77 -12 0.0 -
9 Elusive Woman 79 65 69 -4 6.0 -
10 Florentine 79 86 69 +17 6.0 -
11 Hey Gorgeous 78 52 68 -16 6.0 -
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