Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (For all Maidens)

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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
6 / 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    Lava County          2    56.0    1    0.00     0.0   -     65           6     +6
2    Nkwenkwezi           3    57.0    2    0.30     1.5   69    69           69    +0
3    Stay Tuned           3    60.0    3    0.60     1.5   -     75           75    +75
4    Royal Miracle        3    60.0    4    4.90     1.5   67    70           70    +3
5    Brigham              3    60.0    5    5.30     1.5   75    70           70    -5
6    Afterburn            3    60.0    6    10.00    1.5   73    70           70    -3
7    Praetorian           3    60.0    7    12.50    1.5   -     70           70    +70
8    Red Sea Hills        3    60.0    8    17.75    1.5   40    70           70    +30
9    Two For The Boys     3    60.0    9    20.00    1.5   73    70           70    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lava County - 87 6 +81 0.0 -
2 Nkwenkwezi Line 69 78 69 +9 1.5
3 Stay Tuned - 71 75 -4 1.5 -
4 Royal Miracle 67 66 70 -4 1.5 -
5 Brigham 75 74 70 +4 1.5 -
6 Afterburn 73 62 70 -8 1.5 -
7 Praetorian - 51 70 -19 1.5 -
8 Red Sea Hills 40 40 70 -30 1.5 -
9 Two For The Boys 73 61 70 -9 1.5 -
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