Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING TUESDAY 12 DECEMBER MR 80 HANDICAP (Open)

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Line Horse
Tayooba
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
10 / 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    Edward Rye (ARG)     3    61.5    1    0.00     6.0   83    79           83    +0
2    San Simon            3    58.5    2    1.75     6.0   85    73           75    -10
3    Tayooba              2    58.5    3    2.00     4.0   77    77           77    +0
4    Vegas Hi Rise        6    61.0    4    5.25     0.0   82    90           90    +8
5    Twice The Storm      2    59.5    5    5.50     4.0   79    79           79    +0
6    King Rahul           4    57.5    6    6.00     7.0   83    69           73    -10
7    Samuel Salt          3    62.0    7    6.25     6.0   87    80           80    -7
8    In The Ether         6    52.0    8    6.50     0.0   64    72           72    +8
9    Kings Road           5    61.5    9    8.75     0.0   83    91           91    +8
10   Munchkin             5    60.5    10   10.75    0.0   81    89           89    +8
11   Arividicio           5    60.5    11   11.75    0.0   81    89           89    +8
12   Herecomestherain     4    59.5    12   17.25    7.0   79    73           73    -6
99   Simply Magic         3    53.0    99   0.00     6.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Edward Rye (ARG) 83 87 83 +4 6.0 -
2 San Simon 85 86 75 +11 6.0 -
3 Tayooba Line 77 68 77 -9 4.0
4 Vegas Hi Rise 82 71 90 -19 0.0 -
5 Twice The Storm 79 73 79 -6 4.0 -
6 King Rahul 83 63 73 -10 7.0 -
7 Samuel Salt 87 82 80 +2 6.0 -
8 In The Ether 64 63 72 -9 0.0 -
9 Kings Road 83 79 91 -12 0.0 -
10 Munchkin 81 65 89 -24 0.0 -
11 Arividicio 81 50 89 -39 0.0 -
12 Herecomestherain 79 55 73 -18 7.0 -
99 Simply Magic - 67 62 +5 6.0 -
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