Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MR 96 HANDICAP (Open)

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Line Horse
Super Agra
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 10
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    Smith And Wesson     2    53.5    1    0.00     1.5   86    80           86    +0
2    Mover And Shaker     5    60.5    2    0.25     0.0   105   97           97    -8
3    Super Agra           4    54.5    3    1.30     0.0   85    85           85    +0
4    Thunderstone         2    56.5    4    1.35     1.5   92    86           86    -6
5    Trompie              2    60.0    5    1.75     1.5   99    93           93    -6
6    Lucy English         3    57.5    6    2.50     2.5   91    86           86    -5
7    Set To Go            2    54.5    7    3.10     1.5   88    82           82    -6
8    Bold Act             3    61.5    8    4.00     2.5   99    94           94    -5
9    Constable            5    58.5    9    12.00    0.0   98    93           93    -5
10   Samuel Salt          3    59.0    10   14.25    2.5   94    89           89    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Smith And Wesson 86 73 86 -13 1.5 -
2 Mover And Shaker 105 109 97 +12 0.0 -
3 Super Agra Line 85 60 85 -25 0.0
4 Thunderstone 92 86 86 ✓ Match 1.5 -
5 Trompie 99 107 93 +14 1.5 -
6 Lucy English 91 90 86 +4 2.5 -
7 Set To Go 88 84 82 +2 1.5 -
8 Bold Act 99 77 94 -17 2.5 -
9 Constable 98 95 93 +2 0.0 -
10 Samuel Salt 94 82 89 -7 2.5 -
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