Official NHA Assessment

Race 7: Bet with Colossus exclusive on www.tote.co.za CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Rafa's Boy
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
6 / 12
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    Mvelelo              2    57.0    1    0.00     5.5   76    76           76    +0
2    Kumemori             5    55.5    2    1.20     0.0   73    84           84    +11
3    Rafa's Boy           2    59.0    3    1.30     5.5   80    80           80    +0
3    Ibutho               7    57.0    3    1.30     0.0   76    87           87    +11
5    Pleasedtoseeyou      3    54.5    5    1.60     8.5   71    65           65    -6
6    Preemptive Strike    4    55.0    6    2.10     10.0  72    63           63    -9
7    Now I Got You        5    55.0    7    2.50     0.0   72    83           83    +11
8    Smorgasbord          6    54.0    8    3.00     0.0   78    81           81    +3
9    Viva Spirit          2    56.5    9    4.90     5.5   75    75           75    +0
99   Bank Street          3    53.0    99   0.00     8.5   -     62           62    +0
99   Fortress Of Fire     2    56.5    99   0.00     5.5   -     75           75    +0
99   Rainbow Reward       5    64.0    99   0.00     0.0   -     101          101   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mvelelo 76 84 76 +8 5.5 -
2 Kumemori 73 71 84 -13 0.0 -
3 Rafa's Boy Line 80 79 80 -1 5.5
3 Ibutho 76 83 87 -4 0.0 -
5 Pleasedtoseeyou 71 65 65 ✓ Match 8.5 -
6 Preemptive Strike 72 70 63 +7 10.0 -
7 Now I Got You 72 67 83 -16 0.0 -
8 Smorgasbord 78 77 81 -4 0.0 -
9 Viva Spirit 75 72 75 -3 5.5 -
99 Bank Street - 67 62 +5 8.5 -
99 Fortress Of Fire - 99 75 +24 5.5 -
99 Rainbow Reward - 89 101 -12 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