Official NHA Assessment

Race 4: BETWAY BACK THE BOKS FM 74 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
A Place In The Sun
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Queen Bomi           4    53.5    1    0.00     6.0   61    46           61    +0
2    Duenna               2    56.0    2    0.75     0.0   83    67           73    -10
3    A Place In The Sun   5    54.0    3    0.85     0.0   63    63           63    +0
3    Perilla              5    59.0    3    0.85     0.0   73    73           73    +0
5    Memorial Day         2    54.0    5    1.25     0.0   63    63           63    +0
6    Beguiling            3    52.5    6    1.45     8.5   60    42           50    -10
7    Dancing Arabian      4    55.5    7    2.85     6.0   65    52           55    -10
8    Lady Elliot          2    58.5    8    4.25     0.0   88    69           78    -10
9    Summer Of Dreams     2    58.0    9    8.00     0.0   71    67           67    -4
10   Primrose Path        2    60.0    10   11.50    0.0   75    71           71    -4
11   Leonessa             2    56.0    11   16.00    0.0   83    63           73    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Queen Bomi 61 58 61 -3 6.0 -
2 Duenna 83 94 73 +21 0.0 -
3 A Place In The Sun Line 63 74 63 +11 0.0
3 Perilla 73 89 73 +16 0.0 -
5 Memorial Day 63 49 63 -14 0.0 -
6 Beguiling 60 50 50 ✓ Match 8.5 -
7 Dancing Arabian 65 60 55 +5 6.0 -
8 Lady Elliot 88 71 78 -7 0.0 -
9 Summer Of Dreams 71 65 67 -2 0.0 -
10 Primrose Path 75 77 71 +6 0.0 -
11 Leonessa 83 56 73 -17 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