Official NHA Assessment

Race 10: KHAYA STABLES WORK RIDERS AND JOCKEYS CHAMPIONSHIP MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Aspect
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
10 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Katsu                3    60.0    1    0.00     4.5   -     72           6     +6
2    Aspect               2    60.0    2    0.30     3.0   75    75           75    +0
3    Mighty Mac           5    62.5    3    0.35     0.0   -     86           86    +86
4    Run For Me           2    62.5    4    0.75     3.0   76    80           80    +4
5    Hawk Circle          2    62.5    5    1.50     3.0   77    80           80    +3
6    Captain Casanova     3    60.0    6    2.25     4.5   76    72           72    -4
7    San Pedro            5    60.0    7    3.00     0.0   74    81           81    +7
8    Black Hole Sun       4    60.0    8    3.75     5.0   -     71           71    +71
9    Stella Et Clavis     2    60.0    9    6.75     3.0   71    75           75    +4
10   Snow Cloud           3    62.5    10   6.95     4.5   -     77           77    +77
99   Numzaan              2    0.0     99   0.00     3.0   -     -45          -45   +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Katsu - 81 6 +75 4.5 -
2 Aspect Line 75 93 75 +18 3.0
3 Mighty Mac - 52 86 -34 0.0 -
4 Run For Me 76 65 80 -15 3.0 -
5 Hawk Circle 77 68 80 -12 3.0 -
6 Captain Casanova 76 85 72 +13 4.5 -
7 San Pedro 74 82 81 +1 0.0 -
8 Black Hole Sun - 53 71 -18 5.0 -
9 Stella Et Clavis 71 64 75 -11 3.0 -
10 Snow Cloud - 58 77 -19 4.5 -
99 Numzaan - 79 -45 +124 3.0 -
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