Official NHA Assessment

Race 1: WSB.CO.ZA MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Kwagga Blitz
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Vibe Sa              2    60.0    1    0.00     4.0   76    79           79    +3
2    Kwagga Blitz         2    60.0    2    1.60     4.0   79    79           79    +0
3    Paul Revere          3    58.5    3    3.00     6.0   -     72           72    +72
4    Oklahoma Twister     4    60.0    4    4.75     7.0   66    73           73    +7
5    Crescendo            3    60.0    5    5.50     6.0   -     75           75    +75
6    Page Boy             3    60.0    6    6.00     6.0   -     75           75    +75
7    Pyro Edition         2    60.0    7    8.30     4.0   73    79           79    +6
8    Cronus               3    60.0    8    8.70     6.0   -     75           75    +75
9    Sommersilber         4    60.0    9    11.00    7.0   61    73           73    +12
10   Asian Delight        2    60.0    10   11.50    4.0   65    79           79    +14
99   Falcon Wings         3    60.0    99   0.00     6.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vibe Sa 76 92 79 +13 4.0 -
2 Kwagga Blitz Line 79 79 79 ✓ Match 4.0
3 Paul Revere - 92 72 +20 6.0 -
4 Oklahoma Twister 66 71 73 -2 7.0 -
5 Crescendo - 79 75 +4 6.0 -
6 Page Boy - 79 75 +4 6.0 -
7 Pyro Edition 73 71 79 -8 4.0 -
8 Cronus - 65 75 -10 6.0 -
9 Sommersilber 61 56 73 -17 7.0 -
10 Asian Delight 65 61 79 -18 4.0 -
99 Falcon Wings - 47 75 -28 6.0 -
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