Official NHA Assessment

Race 11: SAJA APPIE LEG UP MR 80 APPRENTICE HANDICAP (Open)

Line Horse
Open Highway
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
8 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Harun Al Rashid      3    58.5    1    0.00     7.0   77    76           77    +0
2    Open Highway         4    57.5    2    1.40     4.0   83    83           83    +0
3    Sky Pillar Rock      3    53.0    3    3.70     7.0   74    66           66    -8
4    Page Boy             3    55.0    4    3.95     7.0   78    70           70    -8
5    The Playboy Bomber   4    56.5    5    4.55     4.0   81    78           78    -3
6    Never Never Land     3    52.5    6    5.05     7.0   84    64           74    -10
7    Zip Code             3    61.0    7    6.45     7.0   82    81           81    -1
8    Futurewolff          5    56.5    8    7.70     0.0   76    86           86    +10
9    Coming In Hot        3    55.0    9    10.00    7.0   78    69           69    -9
99   Line In The Sky      4    52.0    99   0.00     4.0   -     69           69    +0
99   Carnelo              6    49.5    99   0.00     0.0   -     72           72    +0
99   Arumugam             6    58.0    99   0.00     0.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Harun Al Rashid 77 80 77 +3 7.0 -
2 Open Highway Line 83 94 83 +11 4.0
3 Sky Pillar Rock 74 81 66 +15 7.0 -
4 Page Boy 78 79 70 +9 7.0 -
5 The Playboy Bomber 81 88 78 +10 4.0 -
6 Never Never Land 84 85 74 +11 7.0 -
7 Zip Code 82 77 81 -4 7.0 -
8 Futurewolff 76 75 86 -11 0.0 -
9 Coming In Hot 78 76 69 +7 7.0 -
99 Line In The Sky - 72 69 +3 4.0 -
99 Carnelo - 75 72 +3 0.0 -
99 Arumugam - 74 89 -15 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