Official NHA Assessment

Race 3: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Apache Chief
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
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    Apache Chief         4    60.0    1    0.00     1.5   71    71           71    +0
2    Blurred Vision       3    60.0    2    5.10     3.0   69    68           68    -1
3    Cronus               3    60.0    3    8.10     3.0   78    68           68    -10
4    Quello Che           3    57.0    4    10.85    3.0   67    62           62    -5
5    Sommersilber         4    60.0    5    11.15    1.5   56    71           71    +15
6    Jabberwocky          4    60.0    6    12.15    1.5   68    71           71    +3
7    Gimme A Green Card   3    57.0    7    26.75    3.0   66    62           62    -4
99   Sovereign Crown      3    60.0    99   0.00     3.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Apache Chief Line 71 74 71 +3 1.5
2 Blurred Vision 69 56 68 -12 3.0 -
3 Cronus 78 65 68 -3 3.0 -
4 Quello Che 67 61 62 -1 3.0 -
5 Sommersilber 56 56 71 -15 1.5 -
6 Jabberwocky 68 53 71 -18 1.5 -
7 Gimme A Green Card 66 63 62 +1 3.0 -
99 Sovereign Crown - 68 68 ✓ Match 3.0 -
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