Official NHA Assessment

Race 3: OPEN A TABGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (For all Maidens)

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Line Horse
Venerable
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
3 / 18
Within 2 points
Significant Diffs
11 / 18
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    Aberdeen             2    57.0    1    0.00     0.0   82    77           77    -5
2    Kumemori             5    60.0    2    1.20     0.0   70    87           87    +17
3    Ancient World        2    57.0    3    1.45     0.0   -     80           80    +80
4    Tobacconist          2    57.0    4    2.35     0.0   73    79           79    +6
5    Venerable            3    60.0    5    3.55     9.0   66    66           66    +0
6    Sir Cedric           4    60.0    6    3.85     7.0   53    70           70    +17
7    Potent Captain       4    57.0    7    4.25     7.0   -     64           64    +64
8    Mambo's Call         2    57.0    8    4.45     0.0   83    77           77    -6
9    Northern Blue        2    57.0    9    7.65     0.0   -     77           77    +77
10   Seeking The Sky      2    57.0    10   7.70     0.0   -     77           77    +77
11   The Golden Goal      4    55.5    11   9.90     7.0   70    60           60    -10
12   Roy's Doctor Order   2    57.0    12   12.90    0.0   -     77           77    +77
13   The Business         2    57.0    13   20.90    0.0   -     77           77    +77
14   Sporty Roy           5    60.0    14   24.90    0.0   -     83           83    +83
15   Roy's Licorice       5    60.0    15   27.20    0.0   -     83           83    +83
99   Grand Navigator      2    57.0    99   0.00     0.0   -     77           77    +0
99   Gijima Mfana         6    60.0    99   0.00     0.0   -     83           83    +0
99   Drinks All Round     2    57.0    99   0.00     0.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aberdeen 82 74 77 -3 0.0 -
2 Kumemori 70 71 87 -16 0.0 -
3 Ancient World - 85 80 +5 0.0 -
4 Tobacconist 73 81 79 +2 0.0 -
5 Venerable Line 66 62 66 -4 9.0
6 Sir Cedric 53 58 70 -12 7.0 -
7 Potent Captain - 54 64 -10 7.0 -
8 Mambo's Call 83 79 77 +2 0.0 -
9 Northern Blue - 75 77 -2 0.0 -
10 Seeking The Sky - 66 77 -11 0.0 -
11 The Golden Goal 70 55 60 -5 7.0 -
12 Roy's Doctor Order - 41 77 -36 0.0 -
13 The Business - 58 77 -19 0.0 -
14 Sporty Roy - 14 83 -69 0.0 -
15 Roy's Licorice - 10 83 -73 0.0 -
99 Grand Navigator - - 77 -77 0.0 -
99 Gijima Mfana - 50 83 -33 0.0 -
99 Drinks All Round - 63 77 -14 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