Official NHA Assessment

Race 8: OK GRAND CHALLENGE (Grade 1) (Open/6th leg Open Series)

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Line Horse
Holy Land
Reference for assessment
Exact Matches
0 / 20
Calculated = Official
Close Matches
6 / 20
Within 2 points
Significant Diffs
8 / 20
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    Seven Seas           5    52.5    1    0.00     0.0   85    81           81    -4
2    True Beauty          4    57.5    2    0.05     1.0   95    89           89    -6
3    Holy Land            6    58.0    3    0.80     0.0   96    96           96    +0
4    Lily Blue            5    59.5    4    2.80     0.0   99    97           97    -2
5    Wantage              8    55.5    5    3.05     0.0   91    89           89    -2
6    Captain Of Tortuga   6    59.0    6    3.15     0.0   98    96           96    -2
7    Mr Greenlight        6    57.0    7    4.40     0.0   94    90           90    -4
8    Only Him             4    58.5    8    4.50     1.0   97    91           91    -6
9    Citrusdal            8    52.0    9    4.75     0.0   81    80           80    -1
10   Edward The Seventh   7    55.0    10   5.00     0.0   89    86           86    -3
11   Finchatton           10   59.0    11   5.05     0.0   98    94           94    -4
12   Mind Master          4    52.0    12   5.10     1.0   80    78           78    -2
13   What A Dandy         7    62.0    13   5.60     0.0   105   100          100   -5
14   Bugatti Blue         7    55.0    14   8.10     0.0   90    86           86    -4
15   Armstrong            6    55.0    15   13.10    0.0   90    86           86    -4
16   Love The View        4    52.0    16   21.10    1.0   82    78           78    -4
17   Daffiq               8    57.0    17   27.10    0.0   94    90           90    -4
18   Obscure              4    54.5    18   28.60    1.0   80    83           83    +3
99   Varnica              5    52.0    99   0.00     0.0   79    80           79    +0
99   Tulip Way            5    52.0    99   0.00     0.0   77    80           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Seven Seas 85 90 81 +9 0.0 -
2 True Beauty 95 99 89 +10 1.0 -
3 Holy Land Line 96 97 96 +1 0.0
4 Lily Blue 99 86 97 -11 0.0 -
5 Wantage 91 78 89 -11 0.0 -
6 Captain Of Tortuga 98 97 96 +1 0.0 -
7 Mr Greenlight 94 97 90 +7 0.0 -
8 Only Him 97 87 91 -4 1.0 -
9 Citrusdal 81 81 80 +1 0.0 -
10 Edward The Seventh (ZIM) 89 85 86 -1 0.0 -
11 Finchatton 98 95 94 +1 0.0 -
12 Mind Master 80 87 78 +9 1.0 -
13 What A Dandy 105 109 100 +9 0.0 -
14 Bugatti Blue 90 87 86 +1 0.0 -
15 Armstrong 90 89 86 +3 0.0 -
16 Love The View 82 82 78 +4 1.0 -
17 Daffiq 94 94 90 +4 0.0 -
18 Obscure 80 87 83 +4 1.0 -
99 Varnica 79 90 79 +11 0.0 -
99 Tulip Way 77 80 77 +3 0.0 -
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