Official NHA Assessment

Race 9: WORLD POOL PREMIER'S CHAMPIONS CHALLENGE (Grade 1) (For all horses at Weight for Age)

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Line Horse
Aragosta
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
8 / 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    Royal Victory        5    60.0    1    0.00     0.0   119   123          123   +4
2    Winchester Mansion   3    60.0    2    0.50     3.5   121   123          123   +2
3    Aragosta             3    60.0    3    3.75     3.5   118   118          118   +0
4    Dave The King        2    60.0    4    4.25     0.0   126   125          125   -1
5    Safe Passage         3    60.0    5    6.25     3.5   116   116          116   +0
6    Future Pearl         2    60.0    6    7.50     0.0   116   123          123   +7
7    Litigation           3    60.0    7    8.00     3.5   115   116          116   +1
8    Zeus                 3    60.0    8    9.00     3.5   122   116          116   -6
9    Puerto Manzano (ARG  4    60.0    9    19.00    1.5   125   120          120   -5
10   Meridius             2    60.0    10   19.25    0.0   110   123          123   +13
11   Street Art           3    60.0    11   23.25    3.5   109   116          116   +7
12   Son Of Raj           5    60.0    12   27.25    0.0   119   123          123   +4
13   Cousin Casey         2    60.0    13   99.99    0.0   123   123          123   +0
99   Without Question     5    60.0    99   0.00     0.0   -     123          123   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Victory 119 124 123 +1 0.0 -
2 Winchester Mansion 121 129 123 +6 3.5 -
3 Aragosta Line 118 109 118 -9 3.5
4 Dave The King 126 128 125 +3 0.0 -
5 Safe Passage 116 108 116 -8 3.5 -
6 Future Pearl 116 114 123 -9 0.0 -
7 Litigation 115 113 116 -3 3.5 -
8 Zeus 122 117 116 +1 3.5 -
9 Puerto Manzano (ARG) 125 119 120 -1 1.5 -
10 Meridius 110 115 123 -8 0.0 -
11 Street Art 109 78 116 -38 3.5 -
12 Son Of Raj 119 116 123 -7 0.0 -
13 Cousin Casey 123 125 123 +2 0.0 -
99 Without Question - 111 123 -12 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