Official NHA Assessment

Race 4: RACEHORSE OWNERS ASSOCIATION MR 74 HANDICAP (Open)

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Line Horse
Meetatthewindsor
Reference for assessment
Exact Matches
3 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
3 / 13
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    Jack In The Green    2    59.0    1    0.00     0.0   72    70           72    +0
2    Union Rose           3    55.5    2    0.05     7.0   79    49           69    -10
3    Meetatthewindsor     5    59.5    3    2.80     0.0   73    73           73    +0
4    Gold Gunner          4    61.0    4    2.85     4.0   76    68           68    -8
5    Great Times          3    52.0    5    5.10     7.0   54    42           44    -10
6    Single File          2    60.5    6    5.60     0.0   75    73           73    -2
7    King's Sailor        3    54.5    7    6.10     7.0   77    47           67    -10
8    Four Jacks           4    62.0    8    6.15     4.0   78    68           68    -10
9    Mister Whistle       4    52.0    9    6.40     4.0   47    48           48    +1
10   Hawk Circle          2    58.0    10   8.90     0.0   70    68           68    -2
11   Lennoxtown           2    55.5    11   16.15    0.0   79    63           69    -10
12   Morning Chess        4    56.5    12   99.99    4.0   67    57           57    -10
99   Reach Forthe Stars   5    54.0    99   0.00     0.0   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jack In The Green 72 80 72 +8 0.0 -
2 Union Rose 79 69 69 ✓ Match 7.0 -
3 Meetatthewindsor Line 73 76 73 +3 0.0
4 Gold Gunner 76 72 68 +4 4.0 -
5 Great Times 54 54 44 +10 7.0 -
6 Single File 75 74 73 +1 0.0 -
7 King's Sailor 77 67 67 ✓ Match 7.0 -
8 Four Jacks 78 65 68 -3 4.0 -
9 Mister Whistle 47 52 48 +4 4.0 -
10 Hawk Circle 70 68 68 ✓ Match 0.0 -
11 Lennoxtown 79 72 69 +3 0.0 -
12 Morning Chess 67 65 57 +8 4.0 -
99 Reach Forthe Stars - 56 60 -4 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