Official NHA Assessment

Race 7: THEATRES OF HAPPINESS MERIT RATED 85 HANDICAP (Open)

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Line Horse
Action Zone
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
3 / 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    Brianna              4    61.5    1    0.00     0.5   88    88           88    +0
2    Action Zone          3    54.0    2    1.00     1.0   76    76           76    +0
3    Jet Mirage           3    56.5    3    1.50     1.0   78    80           80    +2
4    Star Aglow           3    52.5    4    4.50     1.0   70    69           69    -1
99   Al Mashriq           4    54.5    99   0.00     0.5   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brianna 88 103 88 +15 0.5 -
2 Action Zone Line 76 90 76 +14 1.0
3 Jet Mirage 78 100 80 +20 1.0 -
4 Star Aglow 70 74 69 +5 1.0 -
99 Al Mashriq - 71 74 -3 0.5 -
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