Official NHA Assessment

Race 1: BETWAY WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Witching Hour
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Drumnadrochit        3    58.0    1    0.00     8.0   -     62           6     +6
2    Blood Of Eden        2    58.0    2    0.80     0.0   77    82           82    +5
3    Kensal Green         2    56.5    3    4.60     0.0   -     75           75    +75
4    Witching Hour        2    58.0    4    4.80     0.0   78    78           78    +0
5    Codeword             2    56.0    5    9.20     0.0   64    74           74    +10
6    Taking A Risk        2    58.0    6    12.40    0.0   74    78           78    +4
7    Falcon's Sunrise     2    58.0    7    12.60    0.0   53    78           78    +25
8    Silent Future        2    58.0    8    21.40    0.0   -     78           78    +78
99   Lanteri              3    58.0    99   0.00     8.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Drumnadrochit - 105 6 +99 8.0 -
2 Blood Of Eden 77 74 82 -8 0.0 -
3 Kensal Green - 79 75 +4 0.0 -
4 Witching Hour Line 78 68 78 -10 0.0
5 Codeword 64 54 74 -20 0.0 -
6 Taking A Risk 74 70 78 -8 0.0 -
7 Falcon's Sunrise 53 55 78 -23 0.0 -
8 Silent Future - 64 78 -14 0.0 -
99 Lanteri - 69 62 +7 8.0 -
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