Official NHA Assessment

Race 2: GOLD CIRCLE RACING YOUTUBE CHANNEL FM 81 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Rotunda
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
3 / 6
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    Oh So Squishy        3    52.0    1    0.00     10.0  75    65           75    +0
2    Rotunda              3    60.0    2    3.20     10.0  83    83           83    +0
3    Aerial View          3    56.5    3    4.90     10.0  76    74           74    -2
4    Kind Judy            4    57.5    4    5.40     7.0   76    82           82    +6
5    Heartsease           3    57.5    5    6.70     10.0  78    76           76    -2
6    Ice Sunsation        6    56.5    6    6.75     0.0   76    94           94    +18
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Oh So Squishy 75 68 75 -7 10.0 -
2 Rotunda Line 83 83 83 ✓ Match 10.0
3 Aerial View 76 82 74 +8 10.0 -
4 Kind Judy 76 73 82 -9 7.0 -
5 Heartsease 78 73 76 -3 10.0 -
6 Ice Sunsation 76 90 94 -4 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