Official NHA Assessment

Race 8: ONLINE FORM GUIDE www.gallop.co.za B STAKES (For All Horses with a nett rating of 101 & below)

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Line Horse
Rainbow Reward
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Bourbon Warrior      3    61.5    1    0.00     9.5   95    75           75    -20
2    King Of Spin         3    60.0    2    0.25     9.5   91    72           81    -10
3    Rainbow Reward       5    57.0    3    2.35     0.0   85    85           85    +0
4    Captain's Christy    4    57.5    4    3.85     11.0  91    64           81    -10
5    Master Josh          2    57.5    5    4.35     6.5   94    73           84    -10
6    Quandary             5    60.0    6    6.35     0.0   91    91           91    +0
7    Mojo Man             4    58.5    7    10.55    11.0  88    66           78    -10
8    Wonderful            3    61.5    8    12.55    9.5   98    75           88    -10
9    Cold Shine           2    55.5    9    14.05    6.5   82    69           72    -10
99   Princess Hannah      4    59.0    99   0.00     11.0  -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bourbon Warrior 95 99 75 +24 9.5 -
2 King Of Spin 91 91 81 +10 9.5 -
3 Rainbow Reward Line 85 89 85 +4 0.0
4 Captain's Christy 91 95 81 +14 11.0 -
5 Master Josh 94 97 84 +13 6.5 -
6 Quandary 91 88 91 -3 0.0 -
7 Mojo Man 88 80 78 +2 11.0 -
8 Wonderful 98 98 88 +10 9.5 -
9 Cold Shine 82 77 72 +5 6.5 -
99 Princess Hannah - 93 67 +26 11.0 -
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