Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 4 FEBRUARY MR 74 HANDICAP (Open)

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Line Horse
South Boy (ARG)
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
3 / 18
Within 2 points
Significant Diffs
12 / 18
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    Cool Winter          2    57.0    1    0.00     3.5   75    73           75    +0
2    Irontail             4    57.0    2    0.20     6.0   68    68           68    +0
3    South Boy (ARG)      4    59.5    3    4.25     6.0   73    73           73    +0
4    Laetitia's Angel     4    57.5    4    5.25     6.0   69    69           69    +0
5    King Of Venus        4    59.5    5    6.25     6.0   73    73           73    +0
6    Dark Tide            5    52.5    6    6.30     0.0   59    71           71    +12
7    Whorly Whorly        7    61.5    7    7.00     0.0   77    89           89    +12
8    Ice Eater            6    57.5    8    7.50     0.0   69    81           81    +12
9    Mescal               2    56.5    9    8.00     3.5   74    72           72    -2
10   In The Ether         6    56.0    10   8.25     0.0   66    78           78    +12
11   La Luvia             4    57.5    11   8.30     6.0   74    69           69    -5
12   Rio's Kiss           3    54.5    12   8.35     5.0   66    65           65    -1
13   Coming In Hot        3    58.5    13   8.75     5.0   71    73           73    +2
14   Vava Vegas           5    58.5    14   10.75    0.0   78    83           83    +5
15   Eagle Alley          4    55.5    15   11.50    6.0   65    65           65    +0
16   Ramchandani Road     5    59.0    16   16.50    0.0   72    84           84    +12
99   Second Breath        2    60.5    99   0.00     3.5   -     80           80    +0
99   Ashanti Sword        2    57.0    99   0.00     3.5   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cool Winter 75 78 75 +3 3.5 -
2 Irontail 68 64 68 -4 6.0 -
3 South Boy (ARG) Line 73 71 73 -2 6.0
4 Laetitia's Angel 69 77 69 +8 6.0 -
5 King Of Venus 73 87 73 +14 6.0 -
6 Dark Tide 59 53 71 -18 0.0 -
7 Whorly Whorly 77 78 89 -11 0.0 -
8 Ice Eater 69 57 81 -24 0.0 -
9 Mescal 74 64 72 -8 3.5 -
10 In The Ether 66 63 78 -15 0.0 -
11 La Luvia 74 71 69 +2 6.0 -
12 Rio's Kiss 66 52 65 -13 5.0 -
13 Coming In Hot 71 76 73 +3 5.0 -
14 Vava Vegas 78 58 83 -25 0.0 -
15 Eagle Alley 65 58 65 -7 6.0 -
16 Ramchandani Road 72 67 84 -17 0.0 -
99 Second Breath - 79 80 -1 3.5 -
99 Ashanti Sword - 52 73 -21 3.5 -
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