Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Volte Face
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
5 / 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    Volte Face           3    60.0    1    0.00     4.5   67    67           67    +0
2    In A Blue Moon       2    60.0    2    0.20     0.0   76    76           76    +0
3    Pomo Clapper         2    60.0    3    0.40     0.0   62    81           81    +19
4    Deception Pass       4    60.0    4    1.65     2.0   -     75           75    +75
5    Pike Place           3    60.0    5    1.90     4.5   63    70           70    +7
6    Al Akhtaar           3    60.0    6    3.65     4.5   -     68           68    +68
7    Breath Of Magic      4    60.0    7    3.90     2.0   70    73           73    +3
8    Russian Lotus        3    60.0    8    8.15     4.5   -     67           67    +67
9    Kanimambo            5    60.0    9    8.65     0.0   56    76           76    +20
10   Sword Of Mercy       3    60.0    10   14.90    4.5   68    67           67    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Volte Face Line 67 66 67 -1 4.5
2 In A Blue Moon 76 74 76 -2 0.0 -
3 Pomo Clapper 62 68 81 -13 0.0 -
4 Deception Pass - 77 75 +2 2.0 -
5 Pike Place 63 57 70 -13 4.5 -
6 Al Akhtaar - 72 68 +4 4.5 -
7 Breath Of Magic 70 60 73 -13 2.0 -
8 Russian Lotus - 59 67 -8 4.5 -
9 Kanimambo 56 59 76 -17 0.0 -
10 Sword Of Mercy 68 65 67 -2 4.5 -
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