Official NHA Assessment

Race 5: CELEBRATING CENTURION MEMBER RHYS DYER'S BIRTHDAY D STAKES (For All Horses with a nett rating of 69 & below)

Back to Race
Line Horse
True Horizon
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Electric Feels       5    53.0    1    0.00     0.0   52    62           58    +6
2    True Horizon         4    56.0    2    0.05     5.0   58    58           58    +0
3    Gravity              4    58.5    3    0.35     5.0   56    63           63    +7
4    Lovers Lane          2    57.0    4    0.55     3.0   55    64           64    +9
5    Undercover Lover     4    53.5    5    2.55     5.0   47    53           53    +6
6    Hiawatha Goldberg    2    64.0    6    4.30     3.0   69    78           78    +9
7    City Of Port Louis   2    60.5    7    4.70     3.0   68    71           71    +3
99   Tambourine Man       5    58.5    99   0.00     0.0   -     73           73    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Electric Feels 52 57 58 -1 0.0 -
2 True Horizon Line 58 60 58 +2 5.0
3 Gravity 56 63 63 ✓ Match 5.0 -
4 Lovers Lane 55 58 64 -6 3.0 -
5 Undercover Lover 47 45 53 -8 5.0 -
6 Hiawatha Goldberg 69 57 78 -21 3.0 -
7 City Of Port Louis 68 63 71 -8 3.0 -
99 Tambourine Man - 64 73 -9 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