Official NHA Assessment

Race 5: OPEN A TABGOLD ACCOUNT - 031 314 1874 MR 76 HANDICAP (Open)

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Line Horse
Nocturnal Flight
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
9 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    View Of The World    3    50.5    1    0.00     9.5   84    56           84    +0
2    French Trip          4    58.5    2    1.40     6.0   75    82           82    +7
3    Master Of Destiny    8    61.0    3    1.45     0.0   78    99           99    +21
4    Nocturnal Flight     3    59.5    4    1.95     9.5   77    77           77    +0
5    Johnny The Thief     2    58.5    5    2.20     0.0   78    94           94    +16
6    Mvelelo              2    59.5    6    2.35     0.0   77    95           95    +18
7    Global Movement      6    55.5    7    2.65     0.0   67    87           87    +20
7    Oh My Word Its Roy   3    52.0    7    2.65     9.5   50    61           61    +11
9    Aberdeen             2    59.5    9    3.40     0.0   77    94           94    +17
10   Lucretius            6    54.5    10   3.70     0.0   64    84           84    +20
11   Captain Marsala      2    59.5    11   5.60     0.0   77    93           93    +16
12   Code Of Conduct      2    53.5    12   5.65     0.0   82    81           81    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 View Of The World 84 78 84 -6 9.5 -
2 French Trip 75 88 82 +6 6.0 -
3 Master Of Destiny 78 73 99 -26 0.0 -
4 Nocturnal Flight Line 77 72 77 -5 9.5
5 Johnny The Thief 78 95 94 +1 0.0 -
6 Mvelelo 77 84 95 -11 0.0 -
7 Global Movement 67 65 87 -22 0.0 -
7 Oh My Word Its Roy 50 50 61 -11 9.5 -
9 Aberdeen 77 74 94 -20 0.0 -
10 Lucretius 64 64 84 -20 0.0 -
11 Captain Marsala 77 68 93 -25 0.0 -
12 Code Of Conduct 82 79 81 -2 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