Official NHA Assessment

Race 7: BETONTAB.CO.ZA FM FM 73 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Gilda Gray
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    Midnight Crystal     2    56.0    1    0.00     0.0   75    64           75    +0
2    Winning Queen        6    52.0    2    0.75     0.0   54    62           62    +8
3    Gilda Gray           3    53.0    3    1.15     2.5   59    59           59    +0
4    Ballroom Bliss       4    60.0    4    1.75     1.0   73    75           75    +2
5    Cerulean Dancer      2    50.5    5    3.75     0.0   64    55           55    -9
6    Allthewayfromusa     2    57.0    6    4.75     0.0   72    66           66    -6
7    Hotchiwitchi         4    55.0    7    5.00     1.0   63    60           60    -3
8    English Primrose     3    52.5    8    6.50     2.5   58    52           52    -6
9    Devilish Dancer      4    54.0    9    12.00    1.0   61    58           58    -3
10   Pashasha             3    58.5    10   15.50    2.5   70    64           64    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Midnight Crystal 75 66 75 -9 0.0 -
2 Winning Queen 54 58 62 -4 0.0 -
3 Gilda Gray Line 59 64 59 +5 2.5
4 Ballroom Bliss 73 84 75 +9 1.0 -
5 Cerulean Dancer 64 71 55 +16 0.0 -
6 Allthewayfromusa 72 57 66 -9 0.0 -
7 Hotchiwitchi 63 53 60 -7 1.0 -
8 English Primrose 58 58 52 +6 2.5 -
9 Devilish Dancer 61 50 58 -8 1.0 -
10 Pashasha 70 57 64 -7 2.5 -
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