Official NHA Assessment

Race 6: THE BANTRY BAY STAKES (For 3-year-old Horses & older (Non-Black Type))

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Line Horse
Surjay
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
10 / 14
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    Thunderstruck        2    62.0    1    0.00     5.0   118   124          124   +6
2    Surjay               3    62.0    2    0.75     7.5   119   119          119   +0
3    Bereave              4    62.0    3    2.25     9.0   120   116          116   -4
4    Rio Querari          5    62.0    4    2.65     0.0   122   134          134   +12
5    Dance Variety        2    52.0    5    3.15     5.0   95    104          104   +9
6    Yellowporscheroad    2    52.0    6    3.25     5.0   94    104          104   +10
7    Mr Cobbs             5    56.0    7    4.25     0.0   104   122          122   +18
8    Resonate             3    58.0    8    5.00     7.5   108   111          111   +3
9    Mufasa               6    56.0    9    6.00     0.0   102   122          122   +20
10   We're Jamming        5    62.0    10   6.30     0.0   117   134          134   +17
11   Gem King             6    58.0    11   6.35     0.0   105   126          126   +21
12   Tempting Fate        4    58.0    12   9.35     9.0   105   108          108   +3
13   Ameena               2    55.5    13   14.10    5.0   106   111          111   +5
99   Noble City           3    58.0    99   0.00     7.5   -     111          111   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Thunderstruck 118 128 124 +4 5.0 -
2 Surjay Line 119 121 119 +2 7.5
3 Bereave 120 111 116 -5 9.0 -
4 Rio Querari 122 116 134 -18 0.0 -
5 Dance Variety 95 114 104 +10 5.0 -
6 Yellowporscheroad 94 97 104 -7 5.0 -
7 Mr Cobbs 104 106 122 -16 0.0 -
8 Resonate 108 103 111 -8 7.5 -
9 Mufasa 102 98 122 -24 0.0 -
10 We're Jamming 117 108 134 -26 0.0 -
11 Gem King 105 108 126 -18 0.0 -
12 Tempting Fate 105 103 108 -5 9.0 -
13 Ameena 106 103 111 -8 5.0 -
99 Noble City - 93 111 -18 7.5 -
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