Official NHA Assessment

Race 5: TABGOLD SCORE 10 MR 65 HANDICAP (Open)

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Line Horse
Twosidestoastory
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Global Secret        3    55.0    1    0.00     1.5   58    55           58    +0
2    Shifting Path        2    59.5    2    0.40     0.0   68    72           72    +4
3    Dark Tide            5    56.0    3    1.50     0.0   57    63           63    +6
4    Twosidestoastory     3    57.5    4    1.80     1.5   63    63           63    +0
5    Purple Powahouse     8    60.0    5    2.50     0.0   65    70           70    +5
6    Lazy Guy             4    60.5    6    2.60     0.5   66    70           70    +4
7    Stevie Gee           5    59.5    7    3.80     0.0   68    68           68    +0
8    Word For Word        3    58.5    8    5.30     1.5   62    62           62    +0
9    Impartial            4    53.0    9    9.20     0.5   51    53           53    +2
99   Quiz Master          3    58.5    99   0.00     1.5   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Global Secret 58 66 58 +8 1.5 -
2 Shifting Path 68 62 72 -10 0.0 -
3 Dark Tide 57 53 63 -10 0.0 -
4 Twosidestoastory Line 63 62 63 -1 1.5
5 Purple Powahouse 65 55 70 -15 0.0 -
6 Lazy Guy 66 61 70 -9 0.5 -
7 Stevie Gee 68 65 68 -3 0.0 -
8 Word For Word 62 62 62 ✓ Match 1.5 -
9 Impartial 51 50 53 -3 0.5 -
99 Quiz Master - 60 62 -2 1.5 -
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