Official NHA Assessment

Race 6: BOOK FOR JULY DAY IN JOZI 0116811796 MR 96 HANDICAP (Open)

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Line Horse
Another Level
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
6 / 13
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    Imperial Master      4    56.0    1    0.00     1.0   88    88           88    +0
2    The Brief            3    57.5    2    1.25     2.0   91    93           93    +2
3    Battleground         5    56.0    3    2.25     0.0   88    93           93    +5
4    Another Level        3    58.5    4    2.35     2.0   93    93           93    +0
5    Millahue             3    56.0    5    2.40     2.0   88    88           88    +0
6    Whafeef              6    57.0    6    2.60     0.0   98    94           94    -4
7    Medlers Tart         2    60.5    7    4.00     0.0   97    100          100   +3
8    Twin Turbo           4    59.0    8    4.10     1.0   94    95           95    +1
9    Poorlittlerichgirl   3    55.0    9    5.10     2.0   86    84           84    -2
10   Top Sail             2    57.0    10   6.85     0.0   90    92           92    +2
11   Supreme Dance        4    56.0    11   18.10    1.0   88    88           88    +0
12   Duke Of Sussex       4    60.0    12   99.99    1.0   96    96           96    +0
99   George Handel        4    56.5    99   0.00     1.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Imperial Master 88 90 88 +2 1.0 -
2 The Brief 91 90 93 -3 2.0 -
3 Battleground 88 92 93 -1 0.0 -
4 Another Level Line 93 86 93 -7 2.0
5 Millahue 88 81 88 -7 2.0 -
6 Whafeef 98 91 94 -3 0.0 -
7 Medlers Tart 97 92 100 -8 0.0 -
8 Twin Turbo 94 88 95 -7 1.0 -
9 Poorlittlerichgirl 86 84 84 ✓ Match 2.0 -
10 Top Sail 90 85 92 -7 0.0 -
11 Supreme Dance 88 76 88 -12 1.0 -
12 Duke Of Sussex 96 96 96 ✓ Match 1.0 -
99 George Handel - 85 89 -4 1.0 -
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