Official NHA Assessment

Race 6: 4RACING THANKS & APPRECIATES BOTES RACING MR 82 HANDICAP (Open)

Line Horse
Bloomington
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 12
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    Celestial City       4    60.5    1    0.00     0.5   83    82           83    +0
2    Royal Guide          4    56.0    2    0.90     0.5   74    77           77    +3
3    Angel Of War         3    58.0    3    1.75     1.5   78    78           78    +0
4    Bloomington          3    59.5    4    1.80     1.5   81    81           81    +0
5    Greenlight Magic     2    59.0    5    3.00     0.0   83    82           82    -1
6    Bob's Your Uncle     5    60.0    6    3.75     0.0   85    83           83    -2
7    Roll Over Redrover   4    60.0    7    4.75     0.5   82    81           81    -1
8    Rain Or Shine        4    56.0    8    5.75     0.5   74    73           73    -1
9    In Cahoots           6    55.0    9    5.85     0.0   71    72           72    +1
10   Vitellius            5    57.5    10   6.00     0.0   80    77           77    -3
11   Jp Two Thousand      3    56.5    11   11.00    1.5   75    72           72    -3
99   Waqaas (AUS)         6    52.5    99   0.00     0.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Celestial City 83 92 83 +9 0.5 -
2 Royal Guide 74 87 77 +10 0.5 -
3 Angel Of War 78 83 78 +5 1.5 -
4 Bloomington Line 81 69 81 -12 1.5
5 Greenlight Magic 83 74 82 -8 0.0 -
6 Bob's Your Uncle 85 103 83 +20 0.0 -
7 Roll Over Redrover 82 79 81 -2 0.5 -
8 Rain Or Shine 74 82 73 +9 0.5 -
9 In Cahoots 71 54 72 -18 0.0 -
10 Vitellius 80 73 77 -4 0.0 -
11 Jp Two Thousand 75 61 72 -11 1.5 -
99 Waqaas (AUS) - 56 67 -11 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