Official NHA Assessment

Race 7: IBHAYI STAKES (Listed) (For 3 year-olds (1st Leg EC Sophomore Chall))

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Line Horse
Khaya's Hope
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Khaya's Hope         5    60.0    1    0.00     0.0   107   107          107   +0
2    Blackberry Malt      5    59.0    2    1.50     0.0   86    108          108   +22
3    Zatara Magic         5    59.0    3    4.00     0.0   85    106          106   +21
4    Sand Bank            2    59.0    4    5.50     0.0   88    105          105   +17
5    Dammi                2    59.0    5    10.75    0.0   78    105          105   +27
6    Acorn                2    59.0    6    12.50    0.0   83    105          105   +22
7    Indy View            2    59.0    7    13.25    0.0   79    105          105   +26
8    Just Forever         3    56.5    8    99.99    3.0   -     94           94    +94
9    Russian Empire       5    59.0    9    99.99    0.0   75    105          105   +30
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Khaya's Hope Line 107 114 107 +7 0.0
2 Blackberry Malt 86 82 108 -26 0.0 -
3 Zatara Magic 85 114 106 +8 0.0 -
4 Sand Bank 88 63 105 -42 0.0 -
5 Dammi 78 55 105 -50 0.0 -
6 Acorn 83 89 105 -16 0.0 -
7 Indy View 79 76 105 -29 0.0 -
8 Just Forever - 49 94 -45 3.0 -
9 Russian Empire 75 53 105 -52 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