Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING THURSDAY 21 MARCH MR 80 HANDICAP (Open)

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Line Horse
Covert Operator
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
6 / 14
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    Stormy Seas          4    56.5    1    0.00     4.0   72    65           72    +0
2    Kinshin Sha          4    56.5    2    0.40     4.0   78    65           68    -10
3    Covert Operator      6    61.5    3    1.25     0.0   83    83           83    +0
4    In The Ether         6    53.0    4    1.50     0.0   74    66           66    -8
5    Jasiri               2    60.0    5    1.80     2.5   85    75           75    -10
6    Siberian Steel       3    59.5    6    2.00     3.5   79    72           72    -7
7    Sakhala Is'Cathulo   3    56.5    7    3.00     3.5   78    66           68    -10
8    Articuno             2    57.5    8    3.25     2.5   80    70           70    -10
9    Inventrix            2    58.5    9    4.25     2.5   77    72           72    -5
10   Iron Sky             3    53.0    10   5.75     3.5   74    59           64    -10
11   Out The Mist         3    56.0    11   7.25     3.5   77    65           67    -10
12   Dontshootthebarman   5    61.0    12   8.75     0.0   82    82           82    +0
13   Inafix               4    55.5    13   13.00    4.0   76    63           66    -10
99   Brosnan              2    57.5    99   0.00     2.5   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stormy Seas 72 77 72 +5 4.0 -
2 Kinshin Sha 78 62 68 -6 4.0 -
3 Covert Operator Line 83 77 83 -6 0.0
4 In The Ether 74 63 66 -3 0.0 -
5 Jasiri 85 82 75 +7 2.5 -
6 Siberian Steel 79 80 72 +8 3.5 -
7 Sakhala Is'Cathulo 78 66 68 -2 3.5 -
8 Articuno 80 80 70 +10 2.5 -
9 Inventrix 77 73 72 +1 2.5 -
10 Iron Sky 74 61 64 -3 3.5 -
11 Out The Mist 77 69 67 +2 3.5 -
12 Dontshootthebarman 82 93 82 +11 0.0 -
13 Inafix 76 69 66 +3 4.0 -
99 Brosnan - 75 70 +5 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