Official NHA Assessment

Race 6: ZIMBABWE CHALLENGE (Open)

Back to Race
Line Horse
True Beauty
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    What A Dandy         7    62.0    1    0.00     0.0   105   113          111   +6
2    True Beauty          4    57.0    2    0.05     2.0   99    99           99    +0
3    Mr Greenlight        6    60.0    3    1.55     0.0   100   112          112   +12
4    Holy Land            6    58.0    4    4.05     0.0   98    106          106   +8
5    Brianna              4    51.0    5    5.05     2.0   86    87           87    +1
6    Only Him             4    60.0    6    19.05    2.0   99    105          105   +6
7    Three To Tango       6    54.0    7    99.99    0.0   87    97           97    +10
99   Lily Blue            5    55.0    99   0.00     0.0   -     99           99    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 What A Dandy 105 109 111 -2 0.0 -
2 True Beauty Line 99 99 99 ✓ Match 2.0
3 Mr Greenlight 100 97 112 -15 0.0 -
4 Holy Land 98 97 106 -9 0.0 -
5 Brianna 86 103 87 +16 2.0 -
6 Only Him 99 87 105 -18 2.0 -
7 Three To Tango 87 87 97 -10 0.0 -
99 Lily Blue - 86 99 -13 0.0 -
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