Official NHA Assessment

Race 3: RACING TODAY DERBY PLATE (3 year olds)

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Line Horse
Coral Creek
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 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    Mister Speaker       3    58.0    1    0.00     3.5   93    69           69    -24
2    Coral Creek          3    60.0    2    1.25     3.5   79    79           79    +0
3    Take Your Time       3    54.5    3    1.75     3.5   58    67           67    +9
4    Master Forester      3    60.0    4    3.00     3.5   93    76           83    -10
5    Waheed               3    58.0    5    99.92    3.5   105   69           95    -10
99   Ahead Of The Facts   3    58.0    99   0.00     3.5   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mister Speaker 93 91 69 +22 3.5 -
2 Coral Creek Line 79 73 79 -6 3.5
3 Take Your Time 58 60 67 -7 3.5 -
4 Master Forester 93 90 83 +7 3.5 -
5 Waheed 105 105 95 +10 3.5 -
99 Ahead Of The Facts - 110 69 +41 3.5 -
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