Official NHA Assessment

Race 3: CAPE SUMMER SEASON OF CHAMPIONS OPEN MAIDEN (For all Maidens)

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Line Horse
In The Bag
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
6 / 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    Aspect               2    58.5    1    0.00     0.0   67    79           73    +6
2    Go It Alone          4    55.5    2    2.25     2.5   70    71           71    +1
3    In The Bag           4    56.0    3    2.30     2.5   71    71           71    +0
4    Nocturnal Flight     3    53.0    4    4.05     4.0   65    61           61    -4
5    Heknows              3    56.0    5    4.80     4.0   62    66           66    +4
6    Explosive Speed      2    56.5    6    5.00     0.0   72    75           75    +3
7    Join The Dots        3    60.0    7    5.10     4.0   -     74           74    +74
8    King Viserys         4    58.0    8    7.85     2.5   75    73           73    -2
9    Dontstopbelievin'    3    55.5    9    9.60     4.0   70    65           65    -5
10   Green Knight         2    53.0    10   13.35    0.0   64    68           68    +4
99   Devil A Saint        4    54.5    99   0.00     2.5   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aspect 67 93 73 +20 0.0 -
2 Go It Alone 70 69 71 -2 2.5 -
3 In The Bag Line 71 61 71 -10 2.5
4 Nocturnal Flight 65 72 61 +11 4.0 -
5 Heknows 62 71 66 +5 4.0 -
6 Explosive Speed 72 68 75 -7 0.0 -
7 Join The Dots - 81 74 +7 4.0 -
8 King Viserys 75 73 73 ✓ Match 2.5 -
9 Dontstopbelievin' 70 63 65 -2 4.0 -
10 Green Knight 64 60 68 -8 0.0 -
99 Devil A Saint - 69 66 +3 2.5 -
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