Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Dressedtothenines
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Littleblackgem       3    57.5    1    0.00     7.5   73    75           75    +2
2    Dressedtothenines    4    56.0    2    1.10     9.0   69    69           69    +0
3    Roy's Grace          4    60.0    3    3.70     9.0   -     77           77    +77
4    Sunka Wakan          2    55.0    4    6.80     5.0   64    75           75    +11
5    Promise Of Fire      3    59.0    5    6.85     7.5   -     78           78    +78
6    Lightinthedarkness   3    59.0    6    10.35    7.5   61    78           78    +17
7    Roy's Ranger         3    59.0    7    19.25    7.5   -     78           78    +78
99   Sun In My Pocket     2    59.0    99   0.00     5.0   -     83           83    +0
99   Ms Galore            3    59.0    99   0.00     7.5   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Littleblackgem 73 61 75 -14 7.5 -
2 Dressedtothenines Line 69 66 69 -3 9.0
3 Roy's Grace - 63 77 -14 9.0 -
4 Sunka Wakan 64 58 75 -17 5.0 -
5 Promise Of Fire - 69 78 -9 7.5 -
6 Lightinthedarkness 61 59 78 -19 7.5 -
7 Roy's Ranger - 40 78 -38 7.5 -
99 Sun In My Pocket - 69 83 -14 5.0 -
99 Ms Galore - 68 78 -10 7.5 -
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