Official NHA Assessment

Race 6: SA CLASSIC 2 MARCH FOR BOOKINGS CALL 011 681 1796 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Laguna Verde
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Mid Winter Wind      3    54.0    1    0.00     3.0   92    73           73    -19
2    Texas Red            5    62.0    2    0.75     0.0   98    99           99    +1
3    Laguna Verde         5    62.0    3    2.25     0.0   98    98           98    +0
4    Celestial City       4    58.0    4    2.65     2.0   92    85           85    -7
5    Brave Viking         5    56.0    5    4.90     0.0   89    83           83    -6
6    Total Surrender      5    54.0    6    5.15     0.0   85    79           79    -6
7    Funky Music          4    54.0    7    7.40     2.0   91    75           81    -10
8    Bob's Your Uncle     5    54.0    8    8.15     0.0   84    79           79    -5
9    Top Sail             2    58.0    9    10.15    0.0   91    87           87    -4
10   Winter Stories       4    58.0    10   11.15    2.0   100   83           90    -10
99   Flashy Apache        6    60.0    99   0.00     0.0   -     91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mid Winter Wind 92 116 73 +43 3.0 -
2 Texas Red 98 119 99 +20 0.0 -
3 Laguna Verde Line 98 86 98 -12 0.0
4 Celestial City 92 92 85 +7 2.0 -
5 Brave Viking 89 72 83 -11 0.0 -
6 Total Surrender 85 74 79 -5 0.0 -
7 Funky Music 91 83 81 +2 2.0 -
8 Bob's Your Uncle 84 103 79 +24 0.0 -
9 Top Sail 91 85 87 -2 0.0 -
10 Winter Stories 100 95 90 +5 2.0 -
99 Flashy Apache - 78 91 -13 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