Official NHA Assessment

Race 9: Catch Kuda at the KZN BSA Yearling Sale MR 67 HANDICAP (Open)

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Line Horse
Gimme A Rainbow
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
3 / 15
Within 2 points
Significant Diffs
10 / 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    Father's Frost       7    55.0    1    0.00     0.0   65    62           65    +0
2    High Legislation     3    59.5    2    2.40     2.0   68    67           67    -1
3    Gimme A Rainbow      4    58.5    3    2.55     2.5   64    64           64    +0
4    Pacific Winter       5    58.0    4    2.65     0.0   63    68           68    +5
5    Leslies Pathtofame   7    60.0    5    2.95     0.0   67    72           72    +5
6    Alfonsa Spagoni      6    57.0    6    3.55     0.0   64    66           66    +2
7    Charge Down          4    57.5    7    4.65     2.5   62    62           62    +0
8    Hampton Court        7    60.0    8    5.55     0.0   67    72           72    +5
9    Beckoning Beauty     4    57.0    9    5.95     2.5   66    61           61    -5
10   Fiery Duke           3    53.5    10   6.25     2.0   64    55           55    -9
11   Master Keeku         3    57.5    11   7.05     2.0   64    63           63    -1
12   A Time To Remember   4    53.5    12   7.35     2.5   62    54           54    -8
99   Guy Fox              4    54.0    99   0.00     2.5   -     55           55    +0
99   Silver Ducat         2    57.0    99   0.00     1.0   -     64           64    +0
99   Trafalgar Square     6    56.5    99   0.00     0.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Father's Frost 65 62 65 -3 0.0 -
2 High Legislation 68 58 67 -9 2.0 -
3 Gimme A Rainbow Line 64 74 64 +10 2.5
4 Pacific Winter 63 60 68 -8 0.0 -
5 Leslies Pathtofame 67 63 72 -9 0.0 -
6 Alfonsa Spagoni 64 60 66 -6 0.0 -
7 Charge Down 62 51 62 -11 2.5 -
8 Hampton Court 67 70 72 -2 0.0 -
9 Beckoning Beauty 66 75 61 +14 2.5 -
10 Fiery Duke 64 72 55 +17 2.0 -
11 Master Keeku 64 62 63 -1 2.0 -
12 A Time To Remember 62 53 54 -1 2.5 -
99 Guy Fox - 49 55 -6 2.5 -
99 Silver Ducat - 78 64 +14 1.0 -
99 Trafalgar Square - 69 65 +4 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