Official NHA Assessment

Race 6: BOOK A TABLE CALL 0116811796 PINNACLE STAKES (Open to all horses)

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Line Horse
Perfect Witness
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Melech               5    54.0    1    0.00     0.0   107   104          104   -3
2    Indlamu              4    52.0    2    0.05     0.5   98    99           99    +1
3    Flashy Apache        6    52.0    3    0.40     0.0   100   105          105   +5
4    Perfect Witness      3    50.0    4    0.80     1.5   97    97           97    +0
5    Eye Of The Prophet   2    58.5    5    1.25     0.0   119   117          117   -2
6    Whafeef              6    56.0    6    1.50     0.0   107   111          111   +4
7    Peach Daiquiri       2    54.5    7    2.75     0.0   110   107          107   -3
8    Ocean Warrior        3    52.5    8    3.25     1.5   100   100          100   +0
9    Gilded Butterfly     3    58.0    9    4.50     1.5   114   109          109   -5
99   Outofthedarkness     3    56.0    99   0.00     1.5   -     105          105   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Melech 107 118 104 +14 0.0 -
2 Indlamu 98 86 99 -13 0.5 -
3 Flashy Apache 100 78 105 -27 0.0 -
4 Perfect Witness Line 97 105 97 +8 1.5
5 Eye Of The Prophet 119 108 117 -9 0.0 -
6 Whafeef 107 91 111 -20 0.0 -
7 Peach Daiquiri 110 110 107 +3 0.0 -
8 Ocean Warrior 100 95 100 -5 1.5 -
9 Gilded Butterfly 114 108 109 -1 1.5 -
99 Outofthedarkness - 101 105 -4 1.5 -
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