Official NHA Assessment

Race 4: INGOBAMAKHOSI CARBINEERS MR 78 HANDICAP (Open)

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Line Horse
Ralph The Rascal
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 12
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    Canford Ice          2    58.0    1    0.00     0.0   79    78           79    +0
2    Ralph The Rascal     8    58.0    2    1.10     0.0   82    82           82    +0
3    Pongola              5    54.5    3    1.15     0.0   70    75           75    +5
4    Jazz Festival        5    54.5    4    3.65     0.0   67    72           72    +5
5    Mount Meru           4    52.0    5    3.95     1.0   58    65           65    +7
6    Connoisseur          4    58.0    6    4.25     1.0   79    77           77    -2
7    Release Me           3    58.0    7    4.55     2.5   74    73           73    -1
8    Papa C               6    57.5    8    5.05     0.0   76    77           77    +1
9    Future Of Energy     5    56.0    9    5.95     0.0   70    74           74    +4
10   Red Magician         3    52.0    10   6.65     2.5   49    61           61    +12
11   Shoefella            2    55.0    11   6.70     0.0   68    72           72    +4
12   Avro Prince          3    56.0    12   31.70    2.5   75    69           69    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Canford Ice 79 82 79 +3 0.0 -
2 Ralph The Rascal Line 82 73 82 -9 0.0
3 Pongola 70 66 75 -9 0.0 -
4 Jazz Festival 67 70 72 -2 0.0 -
5 Mount Meru 58 50 65 -15 1.0 -
6 Connoisseur 79 56 77 -21 1.0 -
7 Release Me 74 74 73 +1 2.5 -
8 Papa C 76 73 77 -4 0.0 -
9 Future Of Energy 70 55 74 -19 0.0 -
10 Red Magician 49 49 61 -12 2.5 -
11 Shoefella 68 82 72 +10 0.0 -
12 Avro Prince 75 74 69 +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