Official NHA Assessment

Race 5: ROWLIN NATIONAL HANDICAP IN ASSOCIATION WITH TIG ADMINISTRATION MR 86 HANDICAP (Open)

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Line Horse
American Biscuit
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Apache Son           4    57.0    1    0.00     6.0   82    85           82    +0
2    Twin Turbo           4    62.0    2    1.30     6.0   90    98           98    +8
3    American Biscuit     3    52.0    3    2.90     9.5   70    70           70    +0
4    Whispers Of War (AU  7    55.0    4    3.00     0.0   76    95           95    +19
5    Celtic Rush          5    55.5    5    4.05     0.0   77    95           95    +18
6    Al Akhtaar           3    57.0    6    4.15     9.5   82    79           79    -3
7    Fushimi Inari        2    54.5    7    4.25     0.0   77    93           93    +16
8    Douglas Dragon       3    54.5    8    4.35     9.5   77    73           73    -4
9    Weather Wizard       3    58.0    9    4.75     9.5   84    80           80    -4
10   Global Impact        2    55.5    10   6.75     0.0   77    94           94    +17
99   Atarime              3    61.0    99   0.00     9.5   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Apache Son 82 89 82 +7 6.0 -
2 Twin Turbo 90 88 98 -10 6.0 -
3 American Biscuit Line 70 65 70 -5 9.5
4 Whispers Of War (AUS) 76 64 95 -31 0.0 -
5 Celtic Rush 77 69 95 -26 0.0 -
6 Al Akhtaar 82 72 79 -7 9.5 -
7 Fushimi Inari 77 53 93 -40 0.0 -
8 Douglas Dragon 77 89 73 +16 9.5 -
9 Weather Wizard 84 81 80 +1 9.5 -
10 Global Impact 77 74 94 -20 0.0 -
99 Atarime - 103 86 +17 9.5 -
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