Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Chopsticks
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Bird In Space        2    56.0    1    0.00     0.0   -     54           6     +6
2    Chopsticks           3    60.0    2    1.35     0.5   64    64           64    +0
3    Cape Lights          5    56.0    3    1.40     0.0   -     57           57    +57
4    Que Ceu Azul         2    56.0    4    1.50     0.0   -     57           57    +57
5    Nyali Beach          2    56.0    5    3.00     0.0   -     56           56    +56
6    Quantum              5    56.0    6    3.25     0.0   -     56           56    +56
7    Arabian Sky          3    60.0    7    4.00     0.5   64    62           62    -2
8    Colour Coded         3    60.0    8    11.50    0.5   59    61           61    +2
9    Pocketfullofstars    4    60.0    9    13.50    0.5   44    61           61    +17
10   Lazer Grace          3    56.0    10   14.50    0.5   57    53           53    -4
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bird In Space - 66 6 +60 0.0 -
2 Chopsticks Line 64 59 64 -5 0.5
3 Cape Lights - 74 57 +17 0.0 -
4 Que Ceu Azul - 72 57 +15 0.0 -
5 Nyali Beach - 70 56 +14 0.0 -
6 Quantum - 67 56 +11 0.0 -
7 Arabian Sky 64 63 62 +1 0.5 -
8 Colour Coded 59 54 61 -7 0.5 -
9 Pocketfullofstars 44 38 61 -23 0.5 -
10 Lazer Grace 57 44 53 -9 0.5 -
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