Official NHA Assessment

Race 10: www.tabgold.co.za MR 76 HANDICAP (Open)

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Line Horse
Joshua Hotsnake
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Release Me           3    58.0    1    0.00     1.5   72    72           72    +0
2    Joshua Hotsnake      3    59.0    2    0.15     1.5   74    74           74    +0
3    Moya Wa Laliga       3    59.5    3    0.25     1.5   75    75           75    +0
4    Sweeper Keeper       4    57.0    4    0.65     0.5   74    77           77    +3
5    Jet Legacy           5    60.5    5    0.90     0.0   77    84           84    +7
6    Winter Waves         7    59.0    6    2.50     0.0   74    79           79    +5
7    Purple Operator      3    57.0    7    2.80     1.5   73    72           72    -1
8    Giambattista         3    60.5    8    6.30     1.5   77    77           77    +0
9    Arividicio           5    55.5    9    10.00    0.0   67    70           70    +3
10   Midnight Caller      4    56.5    10   10.60    0.5   77    71           71    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Release Me 72 74 72 +2 1.5 -
2 Joshua Hotsnake Line 74 67 74 -7 1.5
3 Moya Wa Laliga 75 81 75 +6 1.5 -
4 Sweeper Keeper 74 67 77 -10 0.5 -
5 Jet Legacy 77 89 84 +5 0.0 -
6 Winter Waves 74 77 79 -2 0.0 -
7 Purple Operator 73 74 72 +2 1.5 -
8 Giambattista 77 87 77 +10 1.5 -
9 Arividicio 67 50 70 -20 0.0 -
10 Midnight Caller 77 77 71 +6 0.5 -
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