Official NHA Assessment

Race 5: BOOK A TABLE CALL 0116811796 MR 96 HANDICAP (Open)

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Line Horse
Goliath Heron
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Sheldon              6    55.0    1    0.00     0.0   89    86           89    +0
2    Marengo              4    56.0    2    1.10     7.0   88    74           78    -10
3    Goliath Heron        6    56.5    3    2.50     0.0   89    89           89    +0
4    Big Eyed Girl        3    56.0    4    6.25     6.0   88    76           78    -10
5    Super Agra           4    55.0    5    7.25     7.0   86    72           76    -10
99   Retallick            3    60.0    99   0.00     6.0   -     84           84    +0
99   Remember When        3    58.5    99   0.00     6.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sheldon 89 106 89 +17 0.0 -
2 Marengo 88 88 78 +10 7.0 -
3 Goliath Heron Line 89 86 89 -3 0.0
4 Big Eyed Girl 88 96 78 +18 6.0 -
5 Super Agra 86 60 76 -16 7.0 -
99 Retallick - 96 84 +12 6.0 -
99 Remember When - 90 81 +9 6.0 -
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