Official NHA Assessment

Race 2: BACKCHAT MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Future Flo
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
6 / 13
Within 2 points
Significant Diffs
6 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Celtic Chief         3    60.0    1    0.00     2.5   75    74           74    -1
2    Vhagar               2    57.0    2    3.10     1.5   -     70           70    +70
3    Future Flo           4    60.0    3    3.15     0.0   79    79           79    +0
4    French Duchess       2    57.5    4    3.55     1.5   64    71           71    +7
5    Ayuwi Yuwi           2    54.5    5    5.65     1.5   -     65           65    +65
6    Amor Fati            2    57.0    6    6.65     1.5   -     70           70    +70
7    Barry Du Grond       3    57.0    7    7.05     2.5   -     68           68    +68
8    Galactus             3    57.0    8    7.15     2.5   -     68           68    +68
9    Chakpori             3    54.5    9    7.25     2.5   -     63           63    +63
10   Lucky Spirit         3    57.0    10   8.55     2.5   -     68           68    +68
11   Mia Barca            2    57.5    11   8.85     1.5   51    71           71    +20
12   Visionary Dreamer    3    57.0    12   10.55    2.5   -     68           68    +68
99   Bomber Stream        4    60.0    99   0.00     0.0   -     79           79    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Celtic Chief 75 75 74 +1 2.5 -
2 Vhagar - 71 70 +1 1.5 -
3 Future Flo Line 79 95 79 +16 0.0
4 French Duchess 64 70 71 -1 1.5 -
5 Ayuwi Yuwi - 71 65 +6 1.5 -
6 Amor Fati - 92 70 +22 1.5 -
7 Barry Du Grond - 67 68 -1 2.5 -
8 Galactus - 64 68 -4 2.5 -
9 Chakpori - 64 63 +1 2.5 -
10 Lucky Spirit - 70 68 +2 2.5 -
11 Mia Barca 51 55 71 -16 1.5 -
12 Visionary Dreamer - 57 68 -11 2.5 -
99 Bomber Stream - 52 79 -27 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