Official NHA Assessment

Race 4: MWOS VIRTUALS MERIT RATED 85 HANDICAP (Open)

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Line Horse
Raining Again
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
4 / 4
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    Qunetra              4    55.0    1    0.00     2.5   75    70           75    +0
2    Raining Again        6    60.5    2    5.00     0.0   86    86           86    +0
3    Jacky Sparrow        3    58.5    3    7.50     5.0   82    72           72    -10
4    Walking Thru Time    3    53.0    4    13.50    5.0   71    61           61    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Qunetra 75 83 75 +8 2.5 -
2 Raining Again Line 86 73 86 -13 0.0
3 Jacky Sparrow 82 80 72 +8 5.0 -
4 Walking Thru Time 71 73 61 +12 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