Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Pass The Baton
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Ambitious Lady       3    60.0    1    0.00     9.0   64    49           49    -15
2    Glamorous Lady       2    58.0    2    3.00     0.0   78    65           68    -10
3    Pass The Baton       4    60.0    3    5.25     5.0   57    57           57    +0
4    Empress Wu           3    58.0    4    5.50     9.0   67    45           57    -10
5    Ancient Wisdom       3    58.0    5    6.25     9.0   76    45           66    -10
6    Plum Blossom         3    60.0    6    9.25     9.0   61    49           51    -10
7    Path Fairy           4    60.0    7    9.50     5.0   51    57           57    +6
8    Beverly Baby         3    58.0    8    16.75    9.0   53    45           45    -8
9    Regina Maris         2    58.0    9    23.00    0.0   68    63           63    -5
99   Lacewing             3    58.0    99   0.00     9.0   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ambitious Lady 64 62 49 +13 9.0 -
2 Glamorous Lady 78 76 68 +8 0.0 -
3 Pass The Baton Line 57 48 57 -9 5.0
4 Empress Wu 67 61 57 +4 9.0 -
5 Ancient Wisdom 76 82 66 +16 9.0 -
6 Plum Blossom 61 53 51 +2 9.0 -
7 Path Fairy 51 50 57 -7 5.0 -
8 Beverly Baby 53 53 45 +8 9.0 -
9 Regina Maris 68 68 63 +5 0.0 -
99 Lacewing - 71 45 +26 9.0 -
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