Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MR 66 HANDICAP (Open)

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Line Horse
Sneak Preview
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 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    Cartagena            4    53.0    1    0.00     1.0   51    49           51    +0
2    Bob Lee Swagger      4    55.0    2    0.40     1.0   56    60           60    +4
3    Sneak Preview        3    60.5    3    0.80     2.5   67    67           67    +0
4    Rainy Season         4    53.0    4    0.85     1.0   52    55           55    +3
5    Blurred Vision       3    60.5    5    1.35     2.5   72    66           66    -6
6    Stop The Traffic     4    55.0    6    1.40     1.0   64    58           58    -6
7    The Merciful         5    54.0    7    1.80     0.0   59    58           58    -1
8    Alakanani            4    57.5    8    2.40     1.0   61    62           62    +1
9    Gamer                4    59.0    9    3.90     1.0   64    63           63    -1
10   Circle Of Grace      4    60.5    10   4.90     1.0   67    64           64    -3
11   City Lights          4    57.5    11   7.40     1.0   61    58           58    -3
99   Hat Furious          4    59.0    99   0.00     1.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cartagena 51 77 51 +26 1.0 -
2 Bob Lee Swagger 56 53 60 -7 1.0 -
3 Sneak Preview Line 67 63 67 -4 2.5
4 Rainy Season 52 56 55 +1 1.0 -
5 Blurred Vision 72 56 66 -10 2.5 -
6 Stop The Traffic 64 65 58 +7 1.0 -
7 The Merciful 59 54 58 -4 0.0 -
8 Alakanani 61 59 62 -3 1.0 -
9 Gamer 64 65 63 +2 1.0 -
10 Circle Of Grace 67 51 64 -13 1.0 -
11 City Lights 61 52 58 -6 1.0 -
99 Hat Furious - 53 61 -8 1.0 -
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