Official NHA Assessment

Race 2: NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Jackonory
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
1 / 5
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    Bird In Space        2    60.0    1    0.00     0.0   63    69           63    +0
2    Jackonory            3    56.5    2    1.25     5.0   56    56           56    +0
3    When Evening Comes   5    58.5    3    2.25     0.0   60    69           69    +9
4    Evocative            3    52.5    4    4.00     5.0   48    45           45    -3
99   Eastern World        3    54.5    99   0.00     5.0   -     48           48    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bird In Space 63 66 63 +3 0.0 -
2 Jackonory Line 56 56 56 ✓ Match 5.0
3 When Evening Comes 60 58 69 -11 0.0 -
4 Evocative 48 44 45 -1 5.0 -
99 Eastern World - 52 48 +4 5.0 -
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