Official NHA Assessment

Race 5: PLAY SOCCER 6, 10 AND 13 PINNACLE STAKES (Open)

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Line Horse
Key Element
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
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    Joker Man            4    54.0    1    0.00     0.5   100   97           97    -3
2    William Iron Arm     2    60.0    2    0.30     0.0   114   115          115   +1
3    Key Element          4    52.0    3    2.30     0.5   95    95           95    +0
4    Gimme A Shot         2    56.0    4    2.40     0.0   108   104          104   -4
5    The Africa House     4    54.0    5    2.50     0.5   102   99           99    -3
6    Mercantour           5    54.0    6    3.75     0.0   107   99           99    -8
7    Savannah Storm       5    56.0    7    7.25     0.0   102   102          102   +0
99   Eye Of The Prophet   2    58.0    99   0.00     0.0   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Joker Man 100 98 97 +1 0.5 -
2 William Iron Arm 114 111 115 -4 0.0 -
3 Key Element Line 95 92 95 -3 0.5
4 Gimme A Shot 108 110 104 +6 0.0 -
5 The Africa House 102 93 99 -6 0.5 -
6 Mercantour 107 113 99 +14 0.0 -
7 Savannah Storm 102 102 102 ✓ Match 0.0 -
99 Eye Of The Prophet - 108 106 +2 0.0 -
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