Official NHA Assessment

Race 4: BETWAY BACK THE BOKS GRADUATION PLATE (F & M) (For 1 & 2 Time Winners & Maidens (F & M))

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Line Horse
No Filter
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 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    Runway Bomb          2    57.0    1    0.00     5.5   82    103          88    +6
2    No Filter            4    57.0    2    0.10     10.0  94    94           94    +0
3    Mix The Magic        3    57.5    3    5.50     8.5   60    98           98    +38
4    American Graffiti    2    59.0    4    6.25     5.5   92    107          107   +15
5    Time For Charity     5    60.0    5    6.50     0.0   75    120          120   +45
6    Bad Hair Day         2    57.0    6    6.75     5.5   52    103          103   +51
7    Gal Gadot            8    60.0    7    11.00    0.0   55    120          120   +65
99   Storm Player         3    57.0    99   0.00     8.5   -     97           97    +0
99   Chasing Happiness    3    57.0    99   0.00     8.5   -     97           97    +0
99   Striking Angel       2    57.0    99   0.00     5.5   -     103          103   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Runway Bomb 82 86 88 -2 5.5 -
2 No Filter Line 94 100 94 +6 10.0
3 Mix The Magic 60 52 98 -46 8.5 -
4 American Graffiti 92 90 107 -17 5.5 -
5 Time For Charity 75 61 120 -59 0.0 -
6 Bad Hair Day 52 47 103 -56 5.5 -
7 Gal Gadot 55 50 120 -70 0.0 -
99 Storm Player - 75 97 -22 8.5 -
99 Chasing Happiness - 110 97 +13 8.5 -
99 Striking Angel - 68 103 -35 5.5 -
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