Official NHA Assessment

Race 3: CHARITY MILE 1 NOVEMBER MAIDEN PLATE (F & M) (For Maiden F & M)

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Line Horse
Nkwenkwezi
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Artic Silver         3    60.0    1    0.00     2.5   70    70           70    +0
2    Nkwenkwezi           3    60.0    2    10.00    2.5   70    70           70    +0
3    World Tour           3    60.0    3    12.00    2.5   67    70           70    +3
4    Quello Che           3    60.0    4    13.10    2.5   62    70           70    +8
5    Lunar Rainbow        3    60.0    5    13.60    2.5   68    70           70    +2
6    Bella Boop Boop      3    60.0    6    14.40    2.5   62    70           70    +8
7    Pass The Baton       4    60.0    7    19.00    1.0   53    73           73    +20
8    Denim Blue           3    56.0    8    99.99    2.5   52    62           62    +10
99   Beverly Baby         3    60.0    99   0.00     2.5   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Artic Silver 70 77 70 +7 2.5 -
2 Nkwenkwezi Line 70 78 70 +8 2.5
3 World Tour 67 66 70 -4 2.5 -
4 Quello Che 62 61 70 -9 2.5 -
5 Lunar Rainbow 68 57 70 -13 2.5 -
6 Bella Boop Boop 62 58 70 -12 2.5 -
7 Pass The Baton 53 48 73 -25 1.0 -
8 Denim Blue 52 52 62 -10 2.5 -
99 Beverly Baby - 53 70 -17 2.5 -
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