Official NHA Assessment

Race 8: BETWAY MR 80 HANDICAP (Open)

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Line Horse
Dylan's Champ
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 9
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    Chieftain's Shield   4    55.5    1    0.00     7.0   71    71           71    +0
2    Dylan's Champ        3    57.0    2    0.50     9.0   75    75           75    +0
3    Shinto Shrine        2    60.0    3    0.60     0.0   81    99           99    +18
4    Bay Empire           2    56.5    4    3.00     0.0   74    89           89    +15
5    Mighty Eagle         2    58.5    5    3.05     0.0   95    93           93    -2
6    Clever Trevor        2    56.0    6    7.75     0.0   90    86           86    -4
7    Deception Pass       4    58.5    7    9.50     7.0   80    77           77    -3
8    Sail The Sky         4    54.5    8    11.50    7.0   68    69           69    +1
9    Nazare               3    56.0    9    16.25    9.0   72    68           68    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chieftain's Shield 71 80 71 +9 7.0 -
2 Dylan's Champ Line 75 87 75 +12 9.0
3 Shinto Shrine 81 80 99 -19 0.0 -
4 Bay Empire 74 62 89 -27 0.0 -
5 Mighty Eagle 95 95 93 +2 0.0 -
6 Clever Trevor 90 89 86 +3 0.0 -
7 Deception Pass 80 77 77 ✓ Match 7.0 -
8 Sail The Sky 68 62 69 -7 7.0 -
9 Nazare 72 70 68 +2 9.0 -
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