Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 0116811796 MAIDEN PLATE (For all Maidens)

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Line Horse
Chieftain's Shield
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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 Ultimate King    3    60.0    1    0.00     3.5   76    63           63    -13
2    Chieftain's Shield   4    57.5    2    2.40     1.5   64    64           64    +0
3    Blurred Vision       3    60.0    3    4.00     3.5   67    64           64    -3
4    Follow The Master    3    60.0    4    4.30     3.5   66    63           63    -3
5    Gold De Grace        4    60.0    5    8.50     1.5   57    67           67    +10
6    Urquhart Castle      4    60.0    6    9.25     1.5   30    67           67    +37
99   Future King          3    60.0    99   0.00     3.5   -     63           63    +0
99   Seventh Fleet        3    60.0    99   0.00     3.5   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Ultimate King 76 117 63 +54 3.5 -
2 Chieftain's Shield Line 64 80 64 +16 1.5
3 Blurred Vision 67 56 64 -8 3.5 -
4 Follow The Master 66 82 63 +19 3.5 -
5 Gold De Grace 57 51 67 -16 1.5 -
6 Urquhart Castle 30 37 67 -30 1.5 -
99 Future King - 66 63 +3 3.5 -
99 Seventh Fleet - 66 63 +3 3.5 -
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