Official NHA Assessment

Race 5: TAB GOLD BOWL (Listed) (Open)

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Line Horse
Shoot The Rapids
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
5 / 10
Within 2 points
Significant Diffs
2 / 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    Enflame              3    56.0    1    0.00     5.5   104   96           96    -8
2    Shoot The Rapids     4    62.0    2    3.50     2.0   117   117          117   +0
3    Aladdin's Lamp       4    56.0    3    9.00     2.0   106   103          103   -3
4    Battleground         5    52.0    4    9.10     0.0   92    99           99    +7
5    Taxhaven             4    52.0    5    12.35    2.0   96    95           95    -1
6    Nebraas              8    54.0    6    12.85    0.0   101   103          103   +2
7    Hotarubi             4    54.0    7    24.35    2.0   97    99           99    +2
8    Mo Ment              4    52.0    8    99.99    2.0   93    95           95    +2
9    Royal Invitation     5    51.5    9    99.99    0.0   99    98           98    -1
10   Poets Warrior        5    60.0    10   99.99    0.0   114   115          115   +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Enflame 104 112 96 +16 5.5 -
2 Shoot The Rapids Line 117 117 117 ✓ Match 2.0
3 Aladdin's Lamp 106 106 103 +3 2.0 -
4 Battleground 92 93 99 -6 0.0 -
5 Taxhaven 96 92 95 -3 2.0 -
6 Nebraas 101 99 103 -4 0.0 -
7 Hotarubi 97 97 99 -2 2.0 -
8 Mo Ment 93 93 95 -2 2.0 -
9 Royal Invitation 99 99 98 +1 0.0 -
10 Poets Warrior 114 114 115 -1 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