Official NHA Assessment

Race 6: BOOK FOR GUINEAS DAY 1 FEBRUARY FM 71 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Free In Seattle
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 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    Ancient Wisdom       3    60.0    1    0.00     6.0   83    80           83    +0
2    Sensoria             3    59.5    2    1.10     6.0   82    83           83    +1
3    Free In Seattle      3    57.5    3    1.90     6.0   78    78           78    +0
4    Angel's Wish         6    56.0    4    2.30     0.0   63    86           86    +23
5    Whistledown          4    55.0    5    10.80    3.0   62    76           76    +14
6    Gloria Mundi         2    57.0    6    10.85    0.0   77    86           86    +9
7    Cartagena            4    52.0    7    13.55    3.0   55    70           70    +15
8    Kuramathi            2    59.5    8    14.15    0.0   82    91           91    +9
9    Great Barrier        4    55.5    9    16.15    3.0   63    77           77    +14
99   Destiny Of Fire      2    63.5    99   0.00     0.0   -     99           99    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ancient Wisdom 83 82 83 -1 6.0 -
2 Sensoria 82 84 83 +1 6.0 -
3 Free In Seattle Line 78 89 78 +11 6.0
4 Angel's Wish 63 54 86 -32 0.0 -
5 Whistledown 62 63 76 -13 3.0 -
6 Gloria Mundi 77 66 86 -20 0.0 -
7 Cartagena 55 77 70 +7 3.0 -
8 Kuramathi 82 76 91 -15 0.0 -
9 Great Barrier 63 60 77 -17 3.0 -
99 Destiny Of Fire - 96 99 -3 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