Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Empressofnormandy
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
9 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Inevitable           2    56.0    1    0.00     4.0   63    69           69    +6
2    Arctic Commander     2    60.0    2    2.25     4.0   70    77           77    +7
3    Empressofnormandy    3    60.0    3    2.50     6.0   73    73           73    +0
4    Lady Greensleeves    2    60.0    4    3.50     4.0   65    77           77    +12
5    Princess Lola        2    60.0    5    4.25     4.0   72    77           77    +5
6    Someday Maybe        3    60.0    6    4.50     6.0   60    73           73    +13
7    Sound Machine        3    60.0    7    5.00     6.0   -     73           73    +73
8    Storm Secret         2    58.5    8    5.50     4.0   -     74           74    +74
9    Waitforgreenlight    2    60.0    9    6.50     4.0   75    77           77    +2
10   Whistledown          4    60.0    10   8.25     7.0   48    71           71    +23
11   Royal Horizon        3    60.0    11   13.75    6.0   -     73           73    +73
12   Golden Argo          3    60.0    12   15.50    6.0   -     73           73    +73
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Inevitable 63 74 69 +5 4.0 -
2 Arctic Commander 70 73 77 -4 4.0 -
3 Empressofnormandy Line 73 61 73 -12 6.0
4 Lady Greensleeves 65 63 77 -14 4.0 -
5 Princess Lola 72 60 77 -17 4.0 -
6 Someday Maybe 60 56 73 -17 6.0 -
7 Sound Machine - 83 73 +10 6.0 -
8 Storm Secret - 66 74 -8 4.0 -
9 Waitforgreenlight 75 67 77 -10 4.0 -
10 Whistledown 48 63 71 -8 7.0 -
11 Royal Horizon - 68 73 -5 6.0 -
12 Golden Argo - 61 73 -12 6.0 -
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