Official NHA Assessment

Race 8: THE INDEPENDENT ON SATURDAY DURBAN THEN AND NOW PROGRESS PLATE (F & M) (For Maidens, 1, 2 & 3 time winners (F & M))

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Line Horse
Sovereign Grant
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
8 / 12
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    That's My Baby       2    56.0    1    0.00     1.5   90    92           92    +2
2    Sovereign Grant      4    58.0    2    1.90     0.0   99    99           99    +0
3    Rodeo Drive          2    58.5    3    3.10     1.5   104   97           97    -7
4    Khethiwe's Destiny   3    58.5    4    3.30     2.5   100   95           95    -5
5    Lock And Key         2    58.5    5    3.45     1.5   98    97           97    -1
6    Hot Pearl            2    60.0    6    3.65     1.5   87    100          100   +13
7    Littleblackvelvet    4    57.0    7    4.05     0.0   85    97           97    +12
8    Izibulo              2    54.0    8    5.35     1.5   74    88           88    +14
9    Jazz Cafe            3    58.0    9    7.55     2.5   80    94           94    +14
10   Basked In Glory      3    58.5    10   8.25     2.5   91    95           95    +4
11   Your Ladyship        3    56.0    11   9.55     2.5   76    90           90    +14
12   Stormy Choice        4    59.5    12   10.25    0.0   81    102          102   +21
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 That's My Baby 90 97 92 +5 1.5 -
2 Sovereign Grant Line 99 92 99 -7 0.0
3 Rodeo Drive 104 113 97 +16 1.5 -
4 Khethiwe's Destiny 100 92 95 -3 2.5 -
5 Lock And Key 98 94 97 -3 1.5 -
6 Hot Pearl 87 90 100 -10 1.5 -
7 Littleblackvelvet 85 77 97 -20 0.0 -
8 Izibulo 74 76 88 -12 1.5 -
9 Jazz Cafe 80 82 94 -12 2.5 -
10 Basked In Glory 91 91 95 -4 2.5 -
11 Your Ladyship 76 66 90 -24 2.5 -
12 Stormy Choice 81 81 102 -21 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