Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 74 HANDICAP (Open)

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Line Horse
Lady Blunt
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
3 / 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    Father Christmas     3    60.5    1    0.00     6.0   75    72           75    +0
2    Force Publique       2    58.0    2    0.90     0.0   82    83           83    +1
3    Lady Blunt           2    59.5    3    1.30     0.0   85    85           85    +0
4    Prince Of Kildare    4    59.5    4    4.00     3.0   73    77           77    +4
5    Elusive Red          3    58.0    5    5.50     6.0   82    67           72    -10
6    Johnny Drama         3    58.5    6    5.75     6.0   79    68           69    -10
7    Lava Fire            3    59.5    7    6.25     6.0   73    70           70    -3
8    Viva De Janeiro      5    52.0    8    11.50    0.0   50    67           67    +17
99   Oklahoma Twister     4    58.5    99   0.00     3.0   -     74           74    +0
99   Express Yourself     2    60.0    99   0.00     0.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Father Christmas 75 79 75 +4 6.0 -
2 Force Publique 82 84 83 +1 0.0 -
3 Lady Blunt Line 85 88 85 +3 0.0
4 Prince Of Kildare 73 80 77 +3 3.0 -
5 Elusive Red 82 76 72 +4 6.0 -
6 Johnny Drama 79 78 69 +9 6.0 -
7 Lava Fire 73 69 70 -1 6.0 -
8 Viva De Janeiro 50 50 67 -17 0.0 -
99 Oklahoma Twister - 71 74 -3 3.0 -
99 Express Yourself - 74 83 -9 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