Official NHA Assessment

Race 6: RACING TODAY MR 66 HANDICAP (Open)

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Line Horse
Thambi
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 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    Itsnowornever        5    56.0    1    0.00     0.0   58    59           58    +0
2    Thambi               5    53.0    2    3.80     0.0   55    55           55    +0
3    Gold De Grace        4    52.5    3    4.90     2.0   51    48           48    -3
4    Instant Attraction   3    57.5    4    5.10     4.5   61    53           53    -8
5    Circle Of Grace      4    53.0    5    6.20     2.0   52    49           49    -3
6    Red Sparrow          3    55.5    6    8.90     4.5   57    49           49    -8
7    Chickasaw            2    56.0    7    9.65     0.0   72    59           62    -10
8    Six Of All           2    61.0    8    9.90     0.0   77    69           69    -8
9    Hat Furious          4    54.5    9    9.95     2.0   55    52           52    -3
10   Flag Bearer          3    56.5    10   16.95    4.5   62    51           52    -10
11   Vava Vegas           5    56.0    11   99.99    0.0   58    59           59    +1
99   Gift Of Royal        3    56.0    99   0.00     4.5   -     50           50    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Itsnowornever 58 64 58 +6 0.0 -
2 Thambi Line 55 55 55 ✓ Match 0.0
3 Gold De Grace 51 51 48 +3 2.0 -
4 Instant Attraction 61 60 53 +7 4.5 -
5 Circle Of Grace 52 51 49 +2 2.0 -
6 Red Sparrow 57 55 49 +6 4.5 -
7 Chickasaw 72 67 62 +5 0.0 -
8 Six Of All 77 74 69 +5 0.0 -
9 Hat Furious 55 53 52 +1 2.0 -
10 Flag Bearer 62 60 52 +8 4.5 -
11 Vava Vegas 58 58 59 -1 0.0 -
99 Gift Of Royal - 58 50 +8 4.5 -
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