Official NHA Assessment

Race 7: RACING240 MR 68 HANDICAP (Open)

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Line Horse
Guarding The Wall
Reference for assessment
Exact Matches
4 / 13
Calculated = Official
Close Matches
10 / 13
Within 2 points
Significant Diffs
2 / 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    Volare E Mambo       4    60.0    1    0.00     2.0   73    64           73    +0
2    Guarding The Wall    4    59.5    2    1.25     2.0   67    67           67    +0
3    Pedro                6    61.0    3    1.50     0.0   70    73           73    +3
4    Mr Belvedere         4    55.0    4    2.00     2.0   58    57           57    -1
5    Away With Red        3    57.5    5    2.10     3.0   63    60           60    -3
6    Golden Grey          4    59.0    6    2.15     2.0   66    65           65    -1
7    Mighty Mac           5    51.5    7    2.65     0.0   54    53           53    -1
8    Cheerful Charlie B   3    58.5    8    2.75     3.0   65    61           61    -4
9    Grand Allegro        3    59.0    9    4.50     3.0   66    60           60    -6
10   Travel Master        4    60.5    10   5.75     2.0   69    65           65    -4
11   Silvery Surfer       3    59.0    11   6.00     3.0   74    60           64    -10
12   Mio Destino          2    60.5    12   9.75     0.0   76    69           69    -7
13   Elusive Black        3    60.0    13   19.25    3.0   68    62           62    -6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Volare E Mambo 73 76 73 +3 2.0 -
2 Guarding The Wall Line 67 67 67 ✓ Match 2.0
3 Pedro 70 72 73 -1 0.0 -
4 Mr Belvedere 58 55 57 -2 2.0 -
5 Away With Red 63 62 60 +2 3.0 -
6 Golden Grey 66 64 65 -1 2.0 -
7 Mighty Mac 54 52 53 -1 0.0 -
8 Cheerful Charlie B 65 61 61 ✓ Match 3.0 -
9 Grand Allegro 66 62 60 +2 3.0 -
10 Travel Master 69 65 65 ✓ Match 2.0 -
11 Silvery Surfer 74 72 64 +8 3.0 -
12 Mio Destino 76 69 69 ✓ Match 0.0 -
13 Elusive Black 68 68 62 +6 3.0 -
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