Official NHA Assessment

Race 5: SINGAPORE POOLS TROPHY 2025 PINNACLE STAKES (For all horses)

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Line Horse
Navajo Nation
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Money Heist          2    52.0    1    0.00     0.0   104   116          110   +6
2    Argo Alley           2    52.0    2    0.05     0.0   104   116          116   +12
3    Navajo Nation        4    52.0    3    2.85     7.0   104   104          104   +0
4    Texas Red            5    60.0    4    3.05     0.0   121   134          134   +13
5    Fire 'N Flames       4    54.5    5    6.05     7.0   106   107          107   +1
6    Hotarubi             4    54.0    6    7.25     7.0   107   106          106   -1
7    Wecangoallnight      2    50.0    7    12.50    0.0   96    112          112   +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Money Heist 104 106 110 -4 0.0 -
2 Argo Alley 104 110 116 -6 0.0 -
3 Navajo Nation Line 104 104 104 ✓ Match 7.0
4 Texas Red 121 119 134 -15 0.0 -
5 Fire 'N Flames 106 103 107 -4 7.0 -
6 Hotarubi 107 98 106 -8 7.0 -
7 Wecangoallnight 96 95 112 -17 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