Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN PLATE (For all Maidens)

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Line Horse
Nkwenkwezi
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 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    Singleton Sam        2    56.0    1    0.00     0.0   -     68           6     +6
2    Nkwenkwezi           3    57.0    2    3.50     1.0   69    69           69    +0
3    Matroosberg          2    56.0    3    3.75     0.0   -     69           69    +69
4    Step Into It         2    56.0    4    6.00     0.0   -     68           68    +68
5    Greenlight Racer     2    60.0    5    6.25     0.0   69    76           76    +7
6    Sergeant Soqrat      2    54.5    6    8.00     0.0   -     65           65    +65
7    Parabellum           3    60.0    7    10.00    1.0   65    74           74    +9
8    Nepal Cashmere       3    60.0    8    14.00    1.0   -     74           74    +74
9    Talkoftheheights     2    52.0    9    14.25    0.0   -     60           60    +60
10   Red Sea Hills        3    60.0    10   31.75    1.0   40    74           74    +34
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Singleton Sam - 98 6 +92 0.0 -
2 Nkwenkwezi Line 69 78 69 +9 1.0
3 Matroosberg - 82 69 +13 0.0 -
4 Step Into It - 76 68 +8 0.0 -
5 Greenlight Racer 69 75 76 -1 0.0 -
6 Sergeant Soqrat - 71 65 +6 0.0 -
7 Parabellum 65 61 74 -13 1.0 -
8 Nepal Cashmere - 53 74 -21 1.0 -
9 Talkoftheheights - 52 60 -8 0.0 -
10 Red Sea Hills 40 40 74 -34 1.0 -
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