Official NHA Assessment

Race 6: UNISTAR INKS PINNACLE STAKES (For all horses with a nett rating of 118 & below)

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Line Horse
Pray For Rain
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 12
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    Gladatorian          5    60.5    1    0.00     0.0   117   122          122   +5
2    Good Traveller       6    53.0    2    1.90     0.0   98    107          107   +9
3    Pray For Rain        4    60.5    3    2.30     4.0   114   114          114   +0
4    Cabinet Shuffle      4    53.0    4    3.10     4.0   95    99           99    +4
5    Donquerari           5    51.0    5    3.35     0.0   90    103          103   +13
6    Beechamwood Boy      6    53.5    6    3.40     0.0   96    108          108   +12
7    Coin Spinner         3    56.0    7    4.50     3.5   104   106          106   +2
8    Ishnana              7    51.0    8    5.90     0.0   85    103          103   +18
9    Barzalona            6    53.0    9    6.90     0.0   95    107          107   +12
10   Ensuing              2    52.5    10   9.00     2.5   94    101          101   +7
11   Swing Upon A Star    2    56.0    11   12.10    2.5   105   108          108   +3
12   Captain Casey        2    56.0    12   14.30    2.5   101   108          108   +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gladatorian 117 127 122 +5 0.0 -
2 Good Traveller 98 108 107 +1 0.0 -
3 Pray For Rain Line 114 106 114 -8 4.0
4 Cabinet Shuffle 95 76 99 -23 4.0 -
5 Donquerari 90 86 103 -17 0.0 -
6 Beechamwood Boy 96 84 108 -24 0.0 -
7 Coin Spinner 104 101 106 -5 3.5 -
8 Ishnana 85 83 103 -20 0.0 -
9 Barzalona 95 66 107 -41 0.0 -
10 Ensuing 94 87 101 -14 2.5 -
11 Swing Upon A Star 105 102 108 -6 2.5 -
12 Captain Casey 101 96 108 -12 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