Official NHA Assessment

Race 7: OPEN A TABGOLD ACCOUNT - 031 314 1874 MR 75 HANDICAP (Open)

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Line Horse
Cotton Ron
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
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    Happy Wanderer       5    53.0    1    0.00     0.0   61    61           61    +0
2    Northern Warrior     7    52.5    2    0.05     0.0   63    60           60    -3
3    Bom Bom              4    58.0    3    1.35     6.0   78    59           68    -10
4    Cotton Ron           6    58.5    4    1.85     0.0   72    72           72    +0
5    Gimme A Rainbow      4    60.5    5    2.95     6.0   76    64           66    -10
6    The Gliding Fish     6    60.5    6    3.35     0.0   76    76           76    +0
7    Hippocrates          3    59.0    7    3.55     5.0   73    63           63    -10
8    Lucky Dollar         2    55.5    8    4.25     3.5   66    59           59    -7
9    Flight Path          2    59.5    9    5.85     3.5   86    67           76    -10
99   Jet Legacy           5    61.0    99   0.00     0.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Happy Wanderer 61 55 61 -6 0.0 -
2 Northern Warrior 63 73 60 +13 0.0 -
3 Bom Bom 78 64 68 -4 6.0 -
4 Cotton Ron Line 72 59 72 -13 0.0
5 Gimme A Rainbow 76 74 66 +8 6.0 -
6 The Gliding Fish 76 68 76 -8 0.0 -
7 Hippocrates 73 68 63 +5 5.0 -
8 Lucky Dollar 66 85 59 +26 3.5 -
9 Flight Path 86 84 76 +8 3.5 -
99 Jet Legacy - 89 77 +12 0.0 -
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