Official NHA Assessment

Race 5: GAYDONS MIDAS PINNACLE STAKES (For all horses)

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Line Horse
Pray For Rain
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 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    Ishnana              7    55.0    1    0.00     0.0   98    109          104   +6
2    Pray For Rain        4    59.0    2    2.10     7.0   103   103          103   +0
3    Spydas Corner        4    55.0    3    2.20     7.0   93    95           95    +2
4    Aqua Bolt            5    59.0    4    2.45     0.0   100   117          117   +17
5    Captain Fontane      4    60.0    5    3.50     7.0   105   105          105   +0
6    Naarah               3    57.5    6    3.80     6.0   100   102          102   +2
7    Sikhulu              3    53.5    7    5.60     6.0   90    94           94    +4
8    Party Time           3    59.0    8    6.80     6.0   104   105          105   +1
9    Solid Gold           6    60.0    9    8.10     0.0   106   119          119   +13
99   Gallic Chief         3    57.5    99   0.00     6.0   -     102          102   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ishnana 98 83 104 -21 0.0 -
2 Pray For Rain Line 103 106 103 +3 7.0
3 Spydas Corner 93 82 95 -13 7.0 -
4 Aqua Bolt 100 84 117 -33 0.0 -
5 Captain Fontane 105 109 105 +4 7.0 -
6 Naarah 100 87 102 -15 6.0 -
7 Sikhulu 90 94 94 ✓ Match 6.0 -
8 Party Time 104 104 105 -1 6.0 -
9 Solid Gold 106 103 119 -16 0.0 -
99 Gallic Chief - 98 102 -4 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