Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 MR 81 HANDICAP (Open)

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Line Horse
Atkinson Grimshaw
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
7 / 13
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    Zig Zag              5    55.5    1    0.00     0.0   72    79           72    +0
2    Atkinson Grimshaw    4    58.5    2    4.75     3.5   78    78           78    +0
3    King's Crusade       4    59.5    3    8.00     3.5   80    80           80    +0
4    Gold Rock            5    56.0    4    8.10     0.0   73    80           80    +7
5    Alado's Pride        7    56.5    5    9.35     0.0   74    81           81    +7
6    Ablueazure           3    59.0    6    10.10    7.0   80    72           72    -8
7    Assured              4    60.0    7    10.15    3.5   81    81           81    +0
8    Euphoric             6    55.5    8    11.40    0.0   72    79           79    +7
9    Irish Rain           4    58.5    9    15.65    3.5   78    78           78    +0
10   Motor City Hitman    3    57.5    10   17.15    7.0   77    69           69    -8
11   Super Handsome       4    56.5    11   18.65    3.5   74    74           74    +0
12   At The Opera         6    52.0    12   38.90    0.0   42    72           72    +30
13   Van Gogh             4    56.0    13   99.98    3.5   72    73           73    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zig Zag 72 87 72 +15 0.0 -
2 Atkinson Grimshaw Line 78 75 78 -3 3.5
3 King's Crusade 80 81 80 +1 3.5 -
4 Gold Rock 73 72 80 -8 0.0 -
5 Alado's Pride 74 73 81 -8 0.0 -
6 Ablueazure 80 76 72 +4 7.0 -
7 Assured 81 76 81 -5 3.5 -
8 Euphoric 72 62 79 -17 0.0 -
9 Irish Rain 78 71 78 -7 3.5 -
10 Motor City Hitman 77 68 69 -1 7.0 -
11 Super Handsome 74 61 74 -13 3.5 -
12 At The Opera 42 39 72 -33 0.0 -
13 Van Gogh 72 72 73 -1 3.5 -
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