Official NHA Assessment

Race 3: 4RACING THANKS & APPRECIATES MATCHETT RACING MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Raptor Island
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    Captain Tik Tok      5    60.0    1    0.00     0.0   60    73           66    +6
2    Cue The Rebel        2    55.0    2    2.50     0.5   -     62           62    +62
3    Raptor Island        2    60.0    3    2.75     0.5   72    72           72    +0
4    New Mexico           2    60.0    4    3.00     0.5   -     72           72    +72
5    Vivacious Vicky      2    57.0    5    3.75     0.5   -     66           66    +66
6    Andi's Girl          4    54.5    6    4.00     2.0   -     58           58    +58
7    Count Your Chances   5    57.5    7    8.00     0.0   64    68           68    +4
8    Golden Torrent       3    60.0    8    11.00    1.5   55    70           70    +15
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Tik Tok 60 72 66 +6 0.0 -
2 Cue The Rebel - 62 62 ✓ Match 0.5 -
3 Raptor Island Line 72 61 72 -11 0.5
4 New Mexico - 83 72 +11 0.5 -
5 Vivacious Vicky - 79 66 +13 0.5 -
6 Andi's Girl - 93 58 +35 2.0 -
7 Count Your Chances 64 51 68 -17 0.0 -
8 Golden Torrent 55 51 70 -19 1.5 -
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