Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 25 APRIL FM 74 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mamaquera
Reference for assessment
Exact Matches
0 / 20
Calculated = Official
Close Matches
3 / 20
Within 2 points
Significant Diffs
9 / 20
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    52.5    1    0.00     0.0   69    55           69    +0
2    Princess Ilaria      5    59.0    2    0.20     0.0   77    68           68    -9
3    Mamaquera            5    54.5    3    2.25     0.0   62    62           62    +0
4    Lady Calavera        4    60.5    4    3.00     1.0   75    71           71    -4
5    Batik                3    54.0    5    4.25     2.5   62    54           54    -8
6    Nice Move            3    58.0    6    4.40     2.5   70    61           61    -9
7    Writteninthesand     3    56.0    7    4.50     2.5   71    57           61    -10
8    Queen Of Gaul        2    59.5    8    6.50     0.0   78    69           69    -9
9    Hotchiwitchi         4    55.5    9    6.75     1.0   65    59           59    -6
10   Mauby                5    59.5    10   8.75     0.0   73    69           69    -4
11   Lidl Miss Sunshine   3    52.0    11   9.25     2.5   55    49           49    -6
12   Raining Rubies       5    52.0    12   9.30     0.0   60    54           54    -6
13   Mighty Goddess       2    59.5    13   9.75     0.0   78    69           69    -9
14   English Primrose     3    52.5    14   9.80     2.5   58    50           50    -8
15   Quantum              5    58.0    15   11.75    0.0   75    66           66    -9
16   Treaty               2    49.5    16   12.75    0.0   60    49           50    -10
99   Beguiling            3    57.0    99   0.00     2.5   -     59           59    +0
99   Eastern World        3    51.5    99   0.00     2.5   -     48           48    +0
99   Linganomore          3    57.5    99   0.00     2.5   -     60           60    +0
99   Pink Diamond         6    53.5    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Midnight Crystal 69 66 69 -3 0.0 -
2 Princess Ilaria 77 79 68 +11 0.0 -
3 Mamaquera Line 62 60 62 -2 0.0
4 Lady Calavera 75 81 71 +10 1.0 -
5 Batik 62 57 54 +3 2.5 -
6 Nice Move 70 70 61 +9 2.5 -
7 Writteninthesand 71 57 61 -4 2.5 -
8 Queen Of Gaul 78 66 69 -3 0.0 -
9 Hotchiwitchi 65 53 59 -6 1.0 -
10 Mauby 73 73 69 +4 0.0 -
11 Lidl Miss Sunshine 55 62 49 +13 2.5 -
12 Raining Rubies 60 75 54 +21 0.0 -
13 Mighty Goddess 78 73 69 +4 0.0 -
14 English Primrose 58 58 50 +8 2.5 -
15 Quantum 75 67 66 +1 0.0 -
16 Treaty 60 48 50 -2 0.0 -
99 Beguiling - 50 59 -9 2.5 -
99 Eastern World - 52 48 +4 2.5 -
99 Linganomore - 73 60 +13 2.5 -
99 Pink Diamond - 60 57 +3 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