Official NHA Assessment

Race 4: THE FRANSCHHOEK MOTOR MUSEUM WINCHESTER SPRINT CUP (For All Horses (Non-Black Type))

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Line Horse
Resonate
Reference for assessment
Exact Matches
1 / 15
Calculated = Official
Close Matches
1 / 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    Mr Cobbs             5    54.0    1    0.00     0.0   100   113          106   +6
2    Isivunguvungu        3    58.0    2    0.05     5.0   110   111          111   +1
3    Resonate             3    60.0    3    0.25     5.0   115   115          115   +0
4    We're Jamming        5    54.0    4    0.45     0.0   109   113          113   +4
5    Iphiko               3    53.5    5    1.70     5.0   107   102          102   -5
6    Surjay               3    60.0    6    1.75     5.0   112   115          115   +3
7    Mufasa               6    50.0    7    1.95     0.0   94    105          105   +11
8    Battle Force         4    60.0    8    2.05     6.0   114   113          113   -1
9    Bluff On Bluff       3    50.0    9    2.35     5.0   75    95           95    +20
10   Bella Chica          3    53.5    10   2.40     5.0   106   102          102   -4
11   Barzalona            6    54.5    11   2.90     0.0   103   114          114   +11
12   Rio Querari          5    62.0    12   3.40     0.0   125   129          129   +4
13   African Rain         3    60.0    13   4.15     5.0   113   115          115   +2
14   Cartel Captain       5    60.0    14   6.40     0.0   115   125          125   +10
15   Trompie              2    50.0    15   7.15     3.5   99    98           98    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mr Cobbs 100 106 106 ✓ Match 0.0 -
2 Isivunguvungu 110 130 111 +19 5.0 -
3 Resonate Line 115 103 115 -12 5.0
4 We're Jamming 109 108 113 -5 0.0 -
5 Iphiko 107 111 102 +9 5.0 -
6 Surjay 112 121 115 +6 5.0 -
7 Mufasa 94 98 105 -7 0.0 -
8 Battle Force 114 109 113 -4 6.0 -
9 Bluff On Bluff 75 80 95 -15 5.0 -
10 Bella Chica 106 106 102 +4 5.0 -
11 Barzalona 103 66 114 -48 0.0 -
12 Rio Querari 125 116 129 -13 0.0 -
13 African Rain 113 110 115 -5 5.0 -
14 Cartel Captain 115 88 125 -37 0.0 -
15 Trompie 99 107 98 +9 3.5 -
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