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Trainer Comparison

Statistics by Year:
Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Sandra J. Witherow 5 39 7.8 2 4 2 5.13% 20.51% $30,557 $784 $6,111 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Sandra J. Witherow 5 40 8 2 2 6 5% 25% $39,492 $987 $7,898 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 2 6 3 2 1 0 33.33% 50% $16,060 $2,677 $8,030 0 0
Sandra J. Witherow 9 46 5.11 0 3 5 0% 17.39% $26,026 $566 $2,892 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 1 4 4 1 2 0 25% 75% $7,875 $1,969 $7,875 0 0
Sandra J. Witherow 11 66 6 6 3 7 9.09% 24.24% $96,813 $1,467 $8,801 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 6 2 0 1 2 0% 50% $2,935 $489 $978 0 0
Sandra J. Witherow 11 59 5.36 2 1 8 3.39% 18.64% $44,578 $756 $4,053 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 12 4 0 1 1 0% 16.67% $4,255 $355 $1,418 0 0
Sandra J. Witherow 8 49 6.13 6 8 5 12.24% 38.78% $57,561 $1,175 $7,195 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 2 5 2.5 0 0 0 0% 0% $793 $159 $397 0 0
Sandra J. Witherow 12 80 6.67 1 7 12 1.25% 25% $58,628 $733 $4,886 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 7 2.33 2 1 1 28.57% 57.14% $6,517 $931 $2,172 0 0
Sandra J. Witherow 9 58 6.44 5 2 9 8.62% 27.59% $58,861 $1,015 $6,540 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 4 19 4.75 2 1 2 10.53% 26.32% $14,391 $757 $3,598 0 0
Sandra J. Witherow 5 48 9.6 5 4 5 10.42% 29.17% $61,684 $1,285 $12,337 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 4 1.33 1 0 1 25% 50% $4,035 $1,009 $1,345 0 0
Sandra J. Witherow 6 43 7.17 1 3 2 2.33% 13.95% $31,995 $744 $5,333 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 6 2 0 1 0 0% 16.67% $1,475 $246 $492 0 0
Sandra J. Witherow 9 54 6 1 2 3 1.85% 11.11% $35,258 $653 $3,918 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 10 31 3.1 5 4 3 16.13% 38.71% $19,146 $618 $1,915 0 0
Sandra J. Witherow 8 41 5.13 2 2 4 4.88% 19.51% $26,860 $655 $3,358 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 12 39 3.25 5 5 4 12.82% 35.9% $20,718 $531 $1,727 0 0
Sandra J. Witherow 8 38 4.75 1 1 1 2.63% 7.89% $15,312 $403 $1,914 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 10 28 2.8 1 3 3 3.57% 25% $15,894 $568 $1,589 0 0
Sandra J. Witherow 7 30 4.29 0 0 1 0% 3.33% $8,384 $279 $1,198 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 22 81 3.68 14 13 9 17.28% 44.44% $99,804 $1,232 $4,537 0 0
Sandra J. Witherow 6 27 4.5 2 1 0 7.41% 11.11% $26,847 $994 $4,475 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 7 18 2.57 0 4 2 0% 33.33% $5,891 $327 $842 0 0
Sandra J. Witherow 5 27 5.4 1 4 3 3.7% 29.63% $22,392 $829 $4,478 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 7 22 3.14 1 3 1 4.55% 22.73% $13,041 $593 $1,863 0 0
Sandra J. Witherow 3 15 5 0 1 0 0% 6.67% $6,531 $435 $2,177 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 3 6 2 0 0 1 0% 16.67% $971 $162 $324 0 0
Sandra J. Witherow 4 19 4.75 0 0 1 0% 5.26% $4,327 $228 $1,082 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 12 51 4.25 0 5 7 0% 23.53% $13,864 $272 $1,155 0 0
Sandra J. Witherow 6 17 2.83 0 0 0 0% 0% $2,409 $142 $402 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 7 33 4.71 0 3 5 0% 24.24% $8,139 $247 $1,163 0 0
Sandra J. Witherow 5 27 5.4 1 4 0 3.7% 18.52% $21,139 $783 $4,228 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 6 33 5.5 2 3 5 6.06% 30.3% $15,305 $464 $2,551 0 0
Sandra J. Witherow 4 30 7.5 1 1 3 3.33% 16.67% $17,824 $594 $4,456 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 4 21 5.25 1 2 1 4.76% 19.05% $5,927 $282 $1,482 0 0
Sandra J. Witherow 6 35 5.83 2 5 4 5.71% 31.43% $35,308 $1,009 $5,885 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 7 23 3.29 0 0 1 0% 4.35% $983 $43 $140 0 0
Sandra J. Witherow 6 42 7 3 2 6 7.14% 26.19% $46,531 $1,108 $7,755 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 9 29 3.22 1 1 3 3.45% 17.24% $5,118 $176 $569 0 0
Sandra J. Witherow 7 32 4.57 5 8 6 15.63% 59.38% $70,433 $2,201 $10,062 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 7 42 6 3 4 3 7.14% 23.81% $13,246 $315 $1,892 0 0
Sandra J. Witherow 9 44 4.89 10 2 8 22.73% 45.45% $62,839 $1,428 $6,982 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 14 73 5.21 9 12 9 12.33% 41.1% $32,924 $451 $2,352 0 0
Sandra J. Witherow 4 41 10.25 2 5 4 4.88% 26.83% $16,613 $405 $4,153 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 12 82 6.83 10 5 7 12.2% 26.83% $25,713 $314 $2,143 0 0
Sandra J. Witherow 15 68 4.53 3 6 9 4.41% 26.47% $21,977 $323 $1,465 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 13 62 4.77 10 6 8 16.13% 38.71% $26,012 $420 $2,001 0 0
Sandra J. Witherow 10 53 5.3 4 2 4 7.55% 18.87% $16,408 $310 $1,641 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 12 56 4.67 3 9 6 5.36% 32.14% $10,898 $195 $908 0 0
Sandra J. Witherow 16 70 4.38 15 14 5 21.43% 48.57% $34,982 $500 $2,186 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 1 4 4 0 1 0 0% 25% $592 $148 $592 0 0
Sandra J. Witherow 10 70 7 7 9 8 10% 34.29% $16,252 $232 $1,625 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Sandra J. Witherow 13 118 9.08 16 19 22 13.56% 48.31% $31,645 $268 $2,434 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 1 2 2 1 0 0 50% 50% $431 $216 $431 0 0
Sandra J. Witherow 22 119 5.41 23 18 14 19.33% 46.22% $36,414 $306 $1,655 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,028
Ronnie L. Riggs 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Sandra J. Witherow 16 136 8.5 25 18 13 18.38% 41.18% $40,648 $299 $2,541 0 0