Official NHA Assessment

Race 7: BETWAY SUMMER CUP 30 NOVEMBER MR 86 HANDICAP (Open)

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Line Horse
Birthright
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 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    Hawkbill             4    58.5    1    0.00     4.5   84    79           84    +0
2    Birthright           4    57.5    2    2.25     4.5   82    82           82    +0
3    Panning Gold         3    52.0    3    3.00     8.0   84    62           74    -10
4    Professor Snape      2    59.0    4    5.50     0.0   84    89           89    +5
5    A Place In The Sun   5    56.0    5    6.30     0.0   78    83           83    +5
6    Celtic Rush          5    52.0    6    6.35     0.0   75    75           75    +0
7    Strewn Sky           2    60.5    7    9.85     0.0   88    92           92    +4
8    Sacambaya            2    54.5    8    11.00    0.0   76    80           80    +4
9    Say It With Roses    3    59.0    9    33.00    8.0   85    73           75    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hawkbill 84 100 84 +16 4.5 -
2 Birthright Line 82 95 82 +13 4.5
3 Panning Gold 84 68 74 -6 8.0 -
4 Professor Snape 84 68 89 -21 0.0 -
5 A Place In The Sun 78 74 83 -9 0.0 -
6 Celtic Rush 75 69 75 -6 0.0 -
7 Strewn Sky 88 69 92 -23 0.0 -
8 Sacambaya 76 72 80 -8 0.0 -
9 Say It With Roses 85 77 75 +2 8.0 -
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