Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 WORK RIDERS CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Red Carpet Girl
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Nkandla Gold         4    58.5    1    0.00     3.5   75    73           73    -2
2    Lulu's Boy           5    60.0    2    0.75     0.0   75    83           83    +8
3    Red Carpet Girl      3    52.5    3    0.85     3.0   62    62           62    +0
4    Herecomestherain     4    56.0    4    2.10     3.5   64    68           68    +4
5    Thymetoshine         5    54.0    5    2.35     0.0   62    71           71    +9
6    Jj's Eagle           2    56.5    6    2.85     2.0   75    72           72    -3
7    After Hours          7    60.0    7    3.10     0.0   73    83           83    +10
8    Super Agra           4    58.0    8    3.30     3.5   68    72           72    +4
9    Out The Mist         3    56.5    9    99.99    3.0   73    70           70    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nkandla Gold 75 63 73 -10 3.5 -
2 Lulu's Boy 75 71 83 -12 0.0 -
3 Red Carpet Girl Line 62 55 62 -7 3.0
4 Herecomestherain 64 55 68 -13 3.5 -
5 Thymetoshine 62 51 71 -20 0.0 -
6 Jj's Eagle 75 57 72 -15 2.0 -
7 After Hours 73 79 83 -4 0.0 -
8 Super Agra 68 60 72 -12 3.5 -
9 Out The Mist 73 69 70 -1 3.0 -
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