Official NHA Assessment

Race 7: BET WITH COLOSSUS EXCLUSIVE ON www.tote.co.za CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Summer Winter
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
4 / 10
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    Call Me Jane         3    54.0    1    0.00     7.5   70    70           70    +0
2    Summer Winter        3    58.0    2    0.50     7.5   78    78           78    +0
3    Crafty Crofty        2    55.0    3    1.10     5.0   90    77           80    -10
4    Amen Corner          2    51.5    4    1.35     5.0   80    70           70    -10
5    Wings Of Josephine   3    56.0    5    1.50     7.5   82    74           74    -8
6    Captain's Pride      2    51.5    6    4.00     5.0   83    70           73    -10
7    Are You Sure         2    56.0    7    4.30     5.0   74    79           79    +5
8    Dark Matter          2    60.0    8    4.70     5.0   92    87           87    -5
9    Magical Sky          2    54.0    9    6.90     5.0   80    75           75    -5
10   Shipindani           3    55.0    10   7.30     7.5   72    72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Call Me Jane 70 72 70 +2 7.5 -
2 Summer Winter Line 78 78 78 ✓ Match 7.5
3 Crafty Crofty 90 80 80 ✓ Match 5.0 -
4 Amen Corner 80 76 70 +6 5.0 -
5 Wings Of Josephine 82 78 74 +4 7.5 -
6 Captain's Pride 83 81 73 +8 5.0 -
7 Are You Sure 74 64 79 -15 5.0 -
8 Dark Matter 92 92 87 +5 5.0 -
9 Magical Sky 80 84 75 +9 5.0 -
10 Shipindani 72 69 72 -3 7.5 -
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