Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN HANDICAP (For Maidens with 3 or more runs)

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Line Horse
Doin' Time
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Knockemstiff         2    58.5    1    0.00     2.0   68    60           68    +0
2    Doin' Time           5    57.0    2    2.30     0.0   61    61           61    +0
3    Feather Dancer       2    60.0    3    4.50     2.0   71    63           63    -8
4    Regina Argento       2    54.5    4    4.80     2.0   60    52           52    -8
5    Cannatonic           3    56.0    5    5.30     3.0   59    53           53    -6
6    Noble Warrior        4    55.5    6    7.50     3.5   65    51           55    -10
7    Lemon Scent          3    51.5    7    8.30     3.0   58    44           48    -10
8    Castle Mey           3    51.5    8    32.30    3.0   62    44           52    -10
9    Paschals Njaro       3    52.0    9    99.99    3.0   35    45           45    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Knockemstiff 68 65 68 -3 2.0 -
2 Doin' Time Line 61 54 61 -7 0.0
3 Feather Dancer 71 50 63 -13 2.0 -
4 Regina Argento 60 55 52 +3 2.0 -
5 Cannatonic 59 48 53 -5 3.0 -
6 Noble Warrior 65 54 55 -1 3.5 -
7 Lemon Scent 58 58 48 +10 3.0 -
8 Castle Mey 62 61 52 +9 3.0 -
9 Paschals Njaro 35 35 45 -10 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