Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 WIN BONUS RA MEMBERS)

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Line Horse
Arctic Commander
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    Bad Hair Day         2    60.0    1    0.00     7.0   35    71           41    +6
2    Bees And Honey       2    58.0    2    0.90     7.0   -     67           67    +67
3    Arctic Commander     2    58.0    3    1.25     7.0   67    67           67    +0
4    Potato Salad         4    58.0    4    4.50     12.0  -     57           57    +57
5    Arctic Flag          2    59.0    5    8.75     7.0   64    69           69    +5
6    Siracha              3    60.0    6    18.75    10.5  -     64           64    +64
99   Teo Torriatte        4    58.0    99   0.00     12.0  -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bad Hair Day 35 47 41 +6 7.0 -
2 Bees And Honey - 54 67 -13 7.0 -
3 Arctic Commander Line 67 73 67 +6 7.0
4 Potato Salad - 47 57 -10 12.0 -
5 Arctic Flag 64 60 69 -9 7.0 -
6 Siracha - 48 64 -16 10.5 -
99 Teo Torriatte - 94 57 +37 12.0 -
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