Official NHA Assessment

Race 6: NEW TURF CARRIERS eTHEKWINI SPRINT (For 3-year-olds - Non-Black Type)

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Line Horse
Usa's Hope
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
5 / 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    Shipholia            5    51.5    1    0.00     0.0   85    85           85    +0
2    Music Is Life        2    52.0    2    0.15     0.5   82    85           85    +3
3    Countdown            2    60.0    3    0.55     0.5   108   101          101   -7
4    Usa's Hope           2    56.0    4    1.55     0.5   93    93           93    +0
5    Captain Bombshell    2    60.0    5    2.75     0.5   102   101          101   -1
6    Diani                5    54.0    6    3.15     0.0   87    90           90    +3
7    Quandary             5    52.0    7    3.65     0.0   80    86           86    +6
8    Donquerari           5    54.0    8    4.05     0.0   86    90           90    +4
9    Imposing             2    58.0    9    7.35     0.5   95    97           97    +2
10   Magic Tattoo         5    60.0    10   8.40     0.0   100   102          102   +2
11   Ride On              2    55.5    11   9.20     0.5   98    92           92    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shipholia 85 104 85 +19 0.0 -
2 Music Is Life 82 71 85 -14 0.5 -
3 Countdown 108 106 101 +5 0.5 -
4 Usa's Hope Line 93 97 93 +4 0.5
5 Captain Bombshell 102 106 101 +5 0.5 -
6 Diani 87 96 90 +6 0.0 -
7 Quandary 80 88 86 +2 0.0 -
8 Donquerari 86 86 90 -4 0.0 -
9 Imposing 95 107 97 +10 0.5 -
10 Magic Tattoo 100 93 102 -9 0.0 -
11 Ride On 98 87 92 -5 0.5 -
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