Official NHA Assessment

Race 6: CELEBRATING CENTURION MEMBER JANE TRUTER'S BIRTHDAY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Rahhabba
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
11 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Englefield Green     2    59.0    1    0.00     0.0   80    84           84    +4
2    Ocotillo             3    59.0    2    1.25     4.0   79    80           80    +1
3    Rahhabba             3    59.0    3    1.65     4.0   79    79           79    +0
4    Loui's Star          3    59.0    4    1.70     4.0   74    79           79    +5
5    Wild Applause        3    59.0    5    2.00     4.0   81    79           79    -2
6    Tuscan Romance       3    59.0    6    3.25     4.0   80    78           78    -2
7    Strawberry Thief     3    59.0    7    3.65     4.0   -     77           77    +77
8    Flypast              3    59.0    8    4.05     4.0   -     77           77    +77
9    Blind Faith          4    60.0    9    4.80     2.5   50    81           81    +31
10   Keenia's Princess    3    59.0    10   5.10     4.0   55    76           76    +21
11   Preserve Forever     3    59.0    11   6.10     4.0   -     76           76    +76
99   Alex Miller          3    59.0    99   0.00     4.0   -     76           76    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Englefield Green 80 77 84 -7 0.0 -
2 Ocotillo 79 70 80 -10 4.0 -
3 Rahhabba Line 79 89 79 +10 4.0
4 Loui's Star 74 69 79 -10 4.0 -
5 Wild Applause 81 86 79 +7 4.0 -
6 Tuscan Romance 80 86 78 +8 4.0 -
7 Strawberry Thief - 89 77 +12 4.0 -
8 Flypast - 66 77 -11 4.0 -
9 Blind Faith 50 52 81 -29 2.5 -
10 Keenia's Princess 55 58 76 -18 4.0 -
11 Preserve Forever - 53 76 -23 4.0 -
99 Alex Miller - 71 76 -5 4.0 -
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