Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 74 HANDICAP (Open)

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Line Horse
Mount Darwin
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 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    War Reporter         3    62.0    1    0.00     2.5   78    83           78    +0
2    Mount Darwin         3    59.0    2    0.25     2.5   77    77           77    +0
3    Tracksuit Dave       3    58.5    3    1.25     2.5   76    80           80    +4
4    Guerilla Warfare     3    60.5    4    1.30     2.5   75    83           83    +8
5    Full Go              6    52.5    5    1.60     0.0   59    72           72    +13
6    Repetition           3    59.5    6    2.70     2.5   73    80           80    +7
7    Carnelo              6    59.0    7    4.90     0.0   75    82           82    +7
8    Stop The Traffic     4    55.5    8    5.80     1.0   65    73           73    +8
9    Gimmethespotlight    3    60.5    9    6.80     2.5   80    80           80    +0
10   Arumugam             6    59.5    10   13.00    0.0   73    83           83    +10
99   Oklahoma Twister     4    58.0    99   0.00     1.0   -     78           78    +0
99   Redlightgreenlight   2    58.5    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 War Reporter 78 81 78 +3 2.5 -
2 Mount Darwin Line 77 77 77 ✓ Match 2.5
3 Tracksuit Dave 76 76 80 -4 2.5 -
4 Guerilla Warfare 75 73 83 -10 2.5 -
5 Full Go 59 58 72 -14 0.0 -
6 Repetition 73 70 80 -10 2.5 -
7 Carnelo 75 74 82 -8 0.0 -
8 Stop The Traffic 65 64 73 -9 1.0 -
9 Gimmethespotlight 80 78 80 -2 2.5 -
10 Arumugam 73 71 83 -12 0.0 -
99 Oklahoma Twister - 70 78 -8 1.0 -
99 Redlightgreenlight - 76 81 -5 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