Official NHA Assessment

Race 5: WWW.TAB4RACING.COM MR 100 HANDICAP (Open)

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Line Horse
Sheldon
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 9
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    Anfields Rocket      5    57.5    1    0.00     0.0   102   95           102   +0
2    Constable            5    59.0    2    0.40     0.0   98    98           98    +0
3    Sheldon              6    57.5    3    1.75     0.0   95    95           95    +0
4    Herecomestherain     4    53.5    4    2.40     6.0   87    75           77    -10
5    Danilo Danilovitch   3    61.5    5    2.75     5.0   103   93           93    -10
6    Mercantour           5    55.5    6    2.80     0.0   103   91           93    -10
7    Quantum King         3    59.5    7    8.00     5.0   99    89           89    -10
8    Retallick            3    58.0    8    8.50     5.0   96    86           86    -10
9    Marengo              4    55.0    9    9.75     6.0   90    78           80    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Anfields Rocket 102 106 102 +4 0.0 -
2 Constable 98 95 98 -3 0.0 -
3 Sheldon Line 95 106 95 +11 0.0
4 Herecomestherain 87 55 77 -22 6.0 -
5 Danilo Danilovitch 103 89 93 -4 5.0 -
6 Mercantour 103 113 93 +20 0.0 -
7 Quantum King 99 99 89 +10 5.0 -
8 Retallick 96 96 86 +10 5.0 -
9 Marengo 90 88 80 +8 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