Official NHA Assessment

Race 6: RACING TODAY PINNACLE STAKES (Open)

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Line Horse
King's Express
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 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    The Equator (IRE)    4    60.0    1    0.00     7.0   110   115          115   +5
2    King's Express       3    54.0    2    2.00     10.0  100   100          100   +0
3    Hotarubi             4    58.0    3    2.25     7.0   108   114          114   +6
4    Royal Edition        4    50.0    4    4.25     7.0   88    96           96    +8
5    River Romeo          2    54.0    5    4.45     0.0   95    117          117   +22
6    Wecangoallnight      2    54.0    6    4.55     0.0   98    117          117   +19
7    Street Art           3    54.0    7    5.15     10.0  90    97           97    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Equator (IRE) 110 117 115 +2 7.0 -
2 King's Express Line 100 102 100 +2 10.0
3 Hotarubi 108 98 114 -16 7.0 -
4 Royal Edition 88 92 96 -4 7.0 -
5 River Romeo 95 94 117 -23 0.0 -
6 Wecangoallnight 98 95 117 -22 0.0 -
7 Street Art 90 78 97 -19 10.0 -
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