Official NHA Assessment

Race 8: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 74 HANDICAP (Open)

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Line Horse
Taking A Risk
Reference for assessment
Exact Matches
3 / 15
Calculated = Official
Close Matches
8 / 15
Within 2 points
Significant Diffs
3 / 15
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    Catfish              2    54.5    1    0.00     1.5   87    66           87    +0
2    Taking A Risk        2    56.5    2    2.25     1.5   70    70           70    +0
3    Hammer Blow          3    56.0    3    3.75     2.5   72    67           67    -5
4    Blindfire            2    60.5    4    4.25     1.5   78    78           78    +0
5    Magic Carpet Ride    3    56.0    5    5.75     2.5   66    67           67    +1
6    Ready Set Fire       2    55.0    6    6.05     1.5   67    67           67    +0
7    Gunboat              3    58.5    7    6.35     2.5   74    72           72    -2
8    Duchess Zahra        3    58.5    8    6.55     2.5   74    72           72    -2
9    Bumps Last Grind     2    59.5    9    8.80     1.5   73    76           76    +3
10   Arilena              6    59.5    10   9.10     0.0   73    79           79    +6
11   Inafix               4    56.5    11   10.85    0.0   67    73           73    +6
12   Kia Kaha             3    56.5    12   11.15    2.5   70    68           68    -2
13   Playing Trix         3    61.5    13   22.65    2.5   80    78           78    -2
99   Time Will Tell       2    55.5    99   0.00     1.5   -     68           68    +0
99   Twentytwentyvision   2    62.5    99   0.00     1.5   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Catfish 87 - 87 - 1.5 -
2 Taking A Risk Line 70 70 70 ✓ Match 1.5
3 Hammer Blow 72 72 67 +5 2.5 -
4 Blindfire 78 77 78 -1 1.5 -
5 Magic Carpet Ride 66 66 67 -1 2.5 -
6 Ready Set Fire 67 63 67 -4 1.5 -
7 Gunboat 74 74 72 +2 2.5 -
8 Duchess Zahra 74 72 72 ✓ Match 2.5 -
9 Bumps Last Grind 73 68 76 -8 1.5 -
10 Arilena 73 73 79 -6 0.0 -
11 Inafix 67 66 73 -7 0.0 -
12 Kia Kaha 70 67 68 -1 2.5 -
13 Playing Trix 80 80 78 +2 2.5 -
99 Time Will Tell - 68 68 ✓ Match 1.5 -
99 Twentytwentyvision - 79 82 -3 1.5 -
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