Official NHA Assessment

Race 5: GUINEAS DAY 7 FEBRUARY FM 73 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Rosy Lemon
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Lady Blunt           2    58.5    1    0.00     0.0   85    64           85    +0
2    Alta Capitana        2    59.0    2    1.00     0.0   83    71           73    -10
3    Rosy Lemon           5    59.5    3    1.20     0.0   72    72           72    +0
4    Apostrophe           3    56.5    4    2.95     6.0   78    51           68    -10
5    Pepper Tree          2    56.0    5    5.05     0.0   77    59           67    -10
6    Instant Attraction   3    54.5    6    8.75     6.0   63    44           53    -10
7    Red Sparrow          3    53.0    7    9.75     6.0   60    41           50    -10
8    Zahra Dominia        2    52.5    8    17.00    0.0   70    52           60    -10
9    Grace's Kiss         3    59.0    9    21.50    6.0   83    53           73    -10
10   Hubertus Hunt        2    56.0    10   21.70    0.0   77    59           67    -10
99   Littlemisssplendid   2    59.0    99   0.00     0.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Blunt 85 88 85 +3 0.0 -
2 Alta Capitana 83 80 73 +7 0.0 -
3 Rosy Lemon Line 72 72 72 ✓ Match 0.0
4 Apostrophe 78 74 68 +6 6.0 -
5 Pepper Tree 77 67 67 ✓ Match 0.0 -
6 Instant Attraction 63 60 53 +7 6.0 -
7 Red Sparrow 60 55 50 +5 6.0 -
8 Zahra Dominia 70 70 60 +10 0.0 -
9 Grace's Kiss 83 82 73 +9 6.0 -
10 Hubertus Hunt 77 75 67 +8 0.0 -
99 Littlemisssplendid - 84 65 +19 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