Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Rainbow Reward
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
6 / 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    Cian The Conqueror   5    54.0    1    0.00     0.0   82    82           82    +0
2    Biofarmer            4    62.0    2    0.10     12.0  99    74           89    -10
3    We Are The Logans    2    54.0    3    1.30     7.0   85    68           75    -10
4    Law Of Success       3    52.5    4    1.80     10.5  83    58           73    -10
5    Rainbow Reward       5    56.0    5    1.85     0.0   86    86           86    +0
6    Callmewhenuneedme    4    58.0    6    2.00     12.0  98    66           88    -10
7    Dr Faustus           2    54.0    7    4.50     7.0   85    68           75    -10
8    Tchaikovsky          6    56.0    8    7.00     0.0   86    86           86    +0
9    Sunshine Day         4    55.0    9    11.25    12.0  88    60           78    -10
99   Linkin Navigator     2    58.0    99   0.00     7.0   -     76           76    +0
99   Super Awesome        4    54.0    99   0.00     12.0  -     58           58    +0
99   The Africa House     4    62.0    99   0.00     12.0  -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cian The Conqueror 82 81 82 -1 0.0 -
2 Biofarmer 99 78 89 -11 12.0 -
3 We Are The Logans 85 73 75 -2 7.0 -
4 Law Of Success 83 81 73 +8 10.5 -
5 Rainbow Reward Line 86 89 86 +3 0.0
6 Callmewhenuneedme 98 97 88 +9 12.0 -
7 Dr Faustus 85 78 75 +3 7.0 -
8 Tchaikovsky 86 81 86 -5 0.0 -
9 Sunshine Day 88 69 78 -9 12.0 -
99 Linkin Navigator - 77 76 +1 7.0 -
99 Super Awesome - 79 58 +21 12.0 -
99 The Africa House - 93 74 +19 12.0 -
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