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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 $22,031
Randy L. Preston 5 18 3.6 1 1 1 5.56% 16.67% $21,986 $1,221 $4,397 0 0
Gloria M. Wenderoth 1 2 2 0 0 0 0% 0% $990 $495 $990 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 $22,031
Randy L. Preston 8 28 3.5 2 2 3 7.14% 25% $66,134 $2,362 $8,267 0 0
Gloria M. Wenderoth 1 5 5 0 0 1 0% 20% $4,015 $803 $4,015 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 $22,031
Randy L. Preston 3 12 4 0 0 0 0% 0% $5,020 $418 $1,673 0 0
Gloria M. Wenderoth 1 1 1 0 0 0 0% 0% $880 $880 $880 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 $22,031
Randy L. Preston 1 7 7 0 0 0 0% 0% $870 $124 $870 0 0
Gloria M. Wenderoth 1 4 4 0 0 0 0% 0% $3,600 $900 $3,600 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 $22,031
Randy L. Preston 3 13 4.33 1 4 0 7.69% 38.46% $18,254 $1,404 $6,085 0 0
Gloria M. Wenderoth 1 4 4 0 0 1 0% 25% $3,020 $755 $3,020 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 $22,031
Randy L. Preston 2 9 4.5 0 0 2 0% 22.22% $10,348 $1,150 $5,174 0 0
Gloria M. Wenderoth 1 4 4 0 0 0 0% 0% $1,320 $330 $1,320 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 $22,031
Randy L. Preston 2 10 5 1 3 2 10% 60% $51,000 $5,100 $25,500 0 0
Gloria M. Wenderoth 3 5 1.67 0 0 1 0% 20% $3,234 $647 $1,078 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 $22,031
Randy L. Preston 4 13 3.25 0 1 1 0% 15.38% $12,175 $937 $3,044 0 0
Gloria M. Wenderoth 1 4 4 0 0 0 0% 0% $0 $0 $0 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 $22,031
Randy L. Preston 4 16 4 0 0 0 0% 0% $3,419 $214 $855 0 0
Gloria M. Wenderoth 2 6 3 0 0 1 0% 16.67% $5,208 $868 $2,604 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 $22,031
Randy L. Preston 3 15 5 1 1 0 6.67% 13.33% $21,474 $1,432 $7,158 0 0
Gloria M. Wenderoth 2 8 4 1 1 0 12.5% 25% $12,340 $1,543 $6,170 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 $22,031
Randy L. Preston 3 18 6 0 1 1 0% 11.11% $14,854 $825 $4,951 0 0
Gloria M. Wenderoth 2 3 1.5 0 0 0 0% 0% $650 $217 $325 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 $22,031
Randy L. Preston 6 33 5.5 0 1 3 0% 12.12% $17,451 $529 $2,909 0 0
Gloria M. Wenderoth 3 23 7.67 1 1 2 4.35% 17.39% $17,560 $763 $5,853 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 $22,031
Randy L. Preston 5 34 6.8 2 1 3 5.88% 17.65% $38,584 $1,135 $7,717 0 0
Gloria M. Wenderoth 2 21 10.5 1 3 0 4.76% 19.05% $17,970 $856 $8,985 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 $22,031
Randy L. Preston 5 22 4.4 1 0 3 4.55% 18.18% $20,438 $929 $4,088 0 0
Gloria M. Wenderoth 1 2 2 0 0 0 0% 0% $0 $0 $0 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 $22,031
Randy L. Preston 2 13 6.5 1 0 0 7.69% 7.69% $8,766 $674 $4,383 0 0
Gloria M. Wenderoth 3 10 3.33 0 0 0 0% 0% $1,235 $124 $412 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 $22,031
Randy L. Preston 2 14 7 1 1 2 7.14% 28.57% $18,159 $1,297 $9,080 0 0
Gloria M. Wenderoth 4 14 3.5 0 0 2 0% 14.29% $5,360 $383 $1,340 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 $22,031
Randy L. Preston 2 12 6 2 0 2 16.67% 33.33% $29,334 $2,445 $14,667 0 0
Gloria M. Wenderoth 4 14 3.5 0 0 1 0% 7.14% $8,491 $607 $2,123 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 $22,031
Randy L. Preston 3 15 5 2 2 3 13.33% 46.67% $31,833 $2,122 $10,611 0 0
Gloria M. Wenderoth 3 24 8 2 2 1 8.33% 20.83% $50,649 $2,110 $16,883 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 $22,031
Randy L. Preston 2 9 4.5 0 2 2 0% 44.44% $9,002 $1,000 $4,501 0 0
Gloria M. Wenderoth 3 37 12.33 3 3 3 8.11% 24.32% $47,707 $1,289 $15,902 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 $22,031
Randy L. Preston 1 7 7 1 0 0 14.29% 14.29% $7,316 $1,045 $7,316 0 0
Gloria M. Wenderoth 5 39 7.8 1 1 2 2.56% 10.26% $43,010 $1,103 $8,602 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 $22,031
Randy L. Preston 3 9 3 1 0 0 11.11% 11.11% $16,819 $1,869 $5,606 0 0
Gloria M. Wenderoth 5 41 8.2 4 9 5 9.76% 43.9% $145,310 $3,544 $29,062 0 1

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 $22,031
Randy L. Preston 3 16 5.33 1 0 0 6.25% 6.25% $6,448 $403 $2,149 0 0
Gloria M. Wenderoth 3 27 9 4 7 4 14.81% 55.56% $181,170 $6,710 $60,390 1 1

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 $22,031
Randy L. Preston 2 3 1.5 0 0 0 0% 0% $1,147 $382 $574 0 0
Gloria M. Wenderoth 4 32 8 6 1 7 18.75% 43.75% $114,075 $3,565 $28,519 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 $22,031
Randy L. Preston 1 4 4 0 0 0 0% 0% $660 $165 $660 0 0
Gloria M. Wenderoth 3 18 6 1 2 4 5.56% 38.89% $20,860 $1,159 $6,953 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 $22,031
Randy L. Preston 1 4 4 0 0 0 0% 0% $0 $0 $0 0 0
Gloria M. Wenderoth 3 25 8.33 1 3 4 4% 32% $17,825 $713 $5,942 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 $22,031
Randy L. Preston 1 8 8 1 1 2 12.5% 50% $56,960 $7,120 $56,960 0 0
Gloria M. Wenderoth 3 15 5 0 1 0 0% 6.67% $6,355 $424 $2,118 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 $22,031
Randy L. Preston 3 11 3.67 1 1 2 9.09% 36.36% $23,203 $2,109 $7,734 0 0
Gloria M. Wenderoth 4 9 2.25 0 1 0 0% 11.11% $766 $85 $192 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 $22,031
Randy L. Preston 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gloria M. Wenderoth 5 21 4.2 0 0 1 0% 4.76% $7,700 $367 $1,540 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 $22,031
Randy L. Preston 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gloria M. Wenderoth 4 19 4.75 1 0 1 5.26% 10.53% $6,003 $316 $1,501 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 $22,031
Randy L. Preston 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gloria M. Wenderoth 5 31 6.2 2 3 1 6.45% 19.35% $9,310 $300 $1,862 0 0