Official NHA Assessment

Race 7: Bet with Colossus Exclusive On www.tote.co.za APPRENTICE CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 70)

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Line Horse
Ilha Da Orange
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 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    Beautiful Rania      3    57.5    1    0.00     6.0   68    75           74    +6
2    Quentasia            4    52.0    2    0.80     7.0   59    62           62    +3
3    Grue Of Ice          6    49.5    3    2.00     0.0   50    71           71    +21
4    Ilha Da Orange       4    59.0    4    2.30     7.0   76    76           76    +0
5    Time In Paris        4    53.5    5    3.00     7.0   65    65           65    +0
6    Austrian Beauty      3    55.0    6    4.30     6.0   68    70           70    +2
7    Di Rosa              4    51.5    7    4.50     7.0   61    61           61    +0
99   Purple Flower        3    58.0    99   0.00     6.0   -     76           76    +0
99   There She Goes       6    58.5    99   0.00     0.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Beautiful Rania 68 72 74 -2 6.0 -
2 Quentasia 59 58 62 -4 7.0 -
3 Grue Of Ice 50 53 71 -18 0.0 -
4 Ilha Da Orange Line 76 75 76 -1 7.0
5 Time In Paris 65 61 65 -4 7.0 -
6 Austrian Beauty 68 60 70 -10 6.0 -
7 Di Rosa 61 54 61 -7 7.0 -
99 Purple Flower - 74 76 -2 6.0 -
99 There She Goes - 77 89 -12 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