Official NHA Assessment

Race 2: RACING TODAY MR 66 HANDICAP (Open)

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Line Horse
Circle Of Grace
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
1 / 15
Within 2 points
Significant Diffs
10 / 15
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    Chabal               3    59.0    1    0.00     9.0   66    53           66    +0
2    Majalun              3    59.0    2    2.10     9.0   66    58           58    -8
3    Hat Furious          4    55.5    3    2.50     5.0   56    58           58    +2
4    Circle Of Grace      4    54.5    4    3.20     5.0   55    55           55    +0
5    Instant Attraction   3    57.5    5    3.70     9.0   66    53           56    -10
6    Copper Plate         3    60.5    6    4.20     9.0   69    58           59    -10
7    Crepuscolo           4    54.0    7    4.70     5.0   54    52           52    -2
8    The Merciful         5    54.5    8    4.95     0.0   55    62           62    +7
9    Gold De Grace        4    50.0    9    5.95     5.0   54    43           44    -10
10   Flag Bearer          3    56.5    10   6.20     9.0   64    48           54    -10
11   Count Your Chances   5    53.5    11   7.90     0.0   53    60           60    +7
12   Pomozelous           3    59.0    12   10.15    9.0   64    53           54    -10
13   Red Sparrow          3    57.0    13   11.75    9.0   62    49           52    -10
99   Vava Vegas           5    56.0    99   0.00     0.0   -     65           65    +0
99   Casus Belli          3    59.0    99   0.00     9.0   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chabal 66 73 66 +7 9.0 -
2 Majalun 66 56 58 -2 9.0 -
3 Hat Furious 56 53 58 -5 5.0 -
4 Circle Of Grace Line 55 51 55 -4 5.0
5 Instant Attraction 66 60 56 +4 9.0 -
6 Copper Plate 69 75 59 +16 9.0 -
7 Crepuscolo 54 58 52 +6 5.0 -
8 The Merciful 55 54 62 -8 0.0 -
9 Gold De Grace 54 51 44 +7 5.0 -
10 Flag Bearer 64 60 54 +6 9.0 -
11 Count Your Chances 53 51 60 -9 0.0 -
12 Pomozelous 64 62 54 +8 9.0 -
13 Red Sparrow 62 55 52 +3 9.0 -
99 Vava Vegas - 58 65 -7 0.0 -
99 Casus Belli - 64 53 +11 9.0 -
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