Skip to:

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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 4 14 3.5 0 2 2 0% 28.57% $10,842 $774 $2,711 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 6 25 4.17 0 4 3 0% 28% $22,079 $883 $3,680 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 8 24 3 2 2 4 8.33% 33.33% $28,002 $1,167 $3,500 0 0
Kenneth B. Wirth 6 13 2.17 1 1 1 7.69% 23.08% $21,180 $1,629 $3,530 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 3 4 1.33 0 0 0 0% 0% $1,160 $290 $387 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 2 8 4 1 1 2 12.5% 50% $12,145 $1,518 $6,073 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 4 6 1.5 2 2 0 33.33% 66.67% $17,900 $2,983 $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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 15 48 3.2 5 12 8 10.42% 52.08% $95,176 $1,983 $6,345 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 5 5 1 1 0 20% 40% $7,197 $1,439 $7,197 0 0
Kenneth B. Wirth 11 26 2.36 6 9 2 23.08% 65.38% $80,711 $3,104 $7,337 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 10 5 0 2 1 0% 30% $3,432 $343 $1,716 0 0
Kenneth B. Wirth 8 38 4.75 7 5 8 18.42% 52.63% $90,620 $2,385 $11,328 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 4 17 4.25 2 0 0 11.76% 11.76% $8,023 $472 $2,006 0 0
Kenneth B. Wirth 9 43 4.78 10 6 8 23.26% 55.81% $124,519 $2,896 $13,835 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 6 40 6.67 0 2 3 0% 12.5% $7,743 $194 $1,291 0 0
Kenneth B. Wirth 6 24 4 4 1 7 16.67% 50% $68,641 $2,860 $11,440 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 7 56 8 1 4 4 1.79% 16.07% $18,445 $329 $2,635 0 0
Kenneth B. Wirth 7 40 5.71 6 3 4 15% 32.5% $90,756 $2,269 $12,965 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 6 51 8.5 3 7 4 5.88% 27.45% $34,762 $682 $5,794 0 0
Kenneth B. Wirth 6 25 4.17 3 0 1 12% 16% $34,182 $1,367 $5,697 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 4 42 10.5 4 3 6 9.52% 30.95% $27,898 $664 $6,975 0 0
Kenneth B. Wirth 5 19 3.8 5 4 2 26.32% 57.89% $45,631 $2,402 $9,126 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 9 51 5.67 0 3 3 0% 11.76% $13,870 $272 $1,541 0 0
Kenneth B. Wirth 9 29 3.22 1 4 4 3.45% 31.03% $54,130 $1,867 $6,014 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 7 72 10.29 5 5 6 6.94% 22.22% $37,367 $519 $5,338 0 0
Kenneth B. Wirth 27 87 3.22 7 13 15 8.05% 40.23% $125,379 $1,441 $4,644 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 13 96 7.38 5 19 8 5.21% 33.33% $53,275 $555 $4,098 0 0
Kenneth B. Wirth 39 148 3.79 13 15 17 8.78% 30.41% $217,560 $1,470 $5,578 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 5 8 1.6 1 1 0 12.5% 25% $10,159 $1,270 $2,032 0 0
Kenneth B. Wirth 22 71 3.23 14 12 8 19.72% 47.89% $133,341 $1,878 $6,061 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 5 2.5 0 0 0 0% 0% $2,259 $452 $1,130 0 0
Kenneth B. Wirth 51 129 2.53 28 15 19 21.71% 48.06% $267,449 $2,073 $5,244 0 2

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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 6 6 1 2 0 16.67% 50% $9,248 $1,541 $9,248 0 0
Kenneth B. Wirth 38 113 2.97 22 19 14 19.47% 48.67% $236,519 $2,093 $6,224 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 5 2.5 1 0 0 20% 20% $4,458 $892 $2,229 0 0
Kenneth B. Wirth 20 72 3.6 20 9 9 27.78% 52.78% $271,409 $3,770 $13,570 0 2

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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 9 9 0 0 1 0% 11.11% $1,597 $177 $1,597 0 0
Kenneth B. Wirth 2 5 2.5 2 0 1 40% 60% $16,126 $3,225 $8,063 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 6 22 3.67 4 6 3 18.18% 59.09% $35,279 $1,604 $5,880 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 6 32 5.33 2 2 5 6.25% 28.13% $16,480 $515 $2,747 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 17 54 3.18 13 10 7 24.07% 55.56% $149,486 $2,768 $8,793 0 2

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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 8 16 2 1 1 1 6.25% 18.75% $5,037 $315 $630 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 5 5 0 0 0 0% 0% $0 $0 $0 0 0
Kenneth B. Wirth 2 13 6.5 1 0 1 7.69% 15.38% $5,092 $392 $2,546 0 0