Official NHA Assessment

Race 7: WORLD SPORTS BETTING JUBILEE STAKES (Grade 3) (Open)

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Line Horse
Puerto Manzano (ARG)
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Puerto Manzano (ARG  4    60.0    1    0.00     1.0   120   120          120   +0
2    Perfect Witness      3    51.5    2    0.45     2.0   109   106          106   -3
3    Naval Guard          4    52.0    3    0.50     1.0   90    109          109   +19
4    Zillzaal             6    60.0    4    4.75     0.0   117   122          122   +5
5    Second Base          4    60.0    5    4.80     1.0   118   120          120   +2
6    Golden Pheasant      7    58.0    6    6.00     0.0   113   118          118   +5
7    ExpressFromTheUS     5    54.0    7    6.25     0.0   105   110          110   +5
8    Juliet Tango         6    50.0    8    12.00    0.0   98    102          102   +4
9    Western Fort         5    52.0    9    38.00    0.0   76    106          106   +30
10   Baymax               4    52.0    10   99.99    1.0   66    104          104   +38
99   Marchingontogether   6    56.0    99   0.00     0.0   -     114          114   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Puerto Manzano (ARG) Line 120 119 120 -1 1.0
2 Perfect Witness 109 105 106 -1 2.0 -
3 Naval Guard 90 93 109 -16 1.0 -
4 Zillzaal 117 112 122 -10 0.0 -
5 Second Base 118 99 120 -21 1.0 -
6 Golden Pheasant 113 113 118 -5 0.0 -
7 ExpressFromTheUS 105 98 110 -12 0.0 -
8 Juliet Tango 98 81 102 -21 0.0 -
9 Western Fort 76 76 106 -30 0.0 -
10 Baymax 66 66 104 -38 1.0 -
99 Marchingontogether - 102 114 -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