Proper Name
Mark Nelson Willoughby
| 1985 | Kingsport Mets | App | Rk | NYN | - | 18 | 1 | 5 | 5.11 | 15 | 8 | 0 | 0 | 7 | 2 | 0 | 44.0 | 50 | 39 | 25 | 1 | 35 | 42 | 4 | 0 | 0 | 1.93 | 10.23 | 0.20 | 7.16 | 8.59 | 7.98 | 1.20 |
| 1986 | Columbia Mets | SAL | A | NYN | - | 19 | 1 | 3 | 5.35 | 11 | 6 | 0 | 0 | 5 | 2 | 0 | 33.2 | 30 | 22 | 20 | 6 | 30 | 23 | 2 | 0 | 1 | 1.78 | 8.02 | 1.60 | 8.02 | 6.15 | 5.88 | 0.77 |
| 1987 | Kingsport Mets | App | Rk | NYN | - | 20 | 0 | 0 | 4.34 | 17 | 0 | 0 | 0 | 17 | 10 | 0 | 18.2 | 20 | 14 | 9 | 0 | 22 | 15 | 1 | 0 | 0 | 2.25 | 9.64 | 0.00 | 10.61 | 7.23 | 6.75 | 0.68 |
| 1988 | Gulf Coast Mets | GCL | Rk | NYN | - | 21 | 0 | 2 | 5.95 | 12 | 1 | 0 | 0 | 11 | 4 | 0 | 19.2 | 17 | 18 | 13 | 1 | 12 | 15 | 3 | 0 | 0 | 1.47 | 7.78 | 0.46 | 5.49 | 6.86 | 8.24 | 1.25 |
| 1989 | Pittsfield Mets | NYPL | A- | NYN | - | 22 | 2 | 1 | 2.10 | 16 | 1 | 0 | 0 | 15 | 9 | 1 | 30.0 | 24 | 10 | 7 | 0 | 14 | 23 | 1 | 0 | 0 | 1.27 | 7.20 | 0.00 | 4.20 | 6.90 | 3.00 | 1.64 |
| Tot: | Minors (5 yrs) | | Minors | | | | 4 | 11 | 4.56 | 71 | 16 | 0 | 0 | 27 | 55 | 1 | 146.0 | 141 | 103 | 74 | 8 | 113 | 118 | 11 | 0 | 1 | 1.74 | 8.69 | 0.49 | 6.97 | 7.27 | 6.35 | 1.04 |
| Tot: | Rk (3 yrs) | | Rk | | | | 1 | 7 | 5.14 | 44 | 9 | 0 | 0 | 16 | 35 | 0 | 82.1 | 87 | 71 | 47 | 2 | 69 | 72 | 8 | 0 | 0 | 1.89 | 9.51 | 0.22 | 7.54 | 7.87 | 7.76 | 1.04 |
| Tot: | A- (1 yrs) | | A- | | | | 2 | 1 | 2.10 | 16 | 1 | 0 | 0 | 9 | 15 | 1 | 30.0 | 24 | 10 | 7 | 0 | 14 | 23 | 1 | 0 | 0 | 1.27 | 7.20 | 0.00 | 4.20 | 6.90 | 3.00 | 1.64 |
| Tot: | A (1 yrs) | | A | | | | 1 | 3 | 5.35 | 11 | 6 | 0 | 0 | 2 | 5 | 0 | 33.2 | 30 | 22 | 20 | 6 | 30 | 23 | 2 | 0 | 1 | 1.78 | 8.02 | 1.60 | 8.02 | 6.15 | 5.88 | 0.77 |
| 1985 | Kingsport Mets | App | Rk | NYN | - | 18 | P | | 15 | 4 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 1 | 0 | .250 | .250 | .500 | .750 | .250 | .250 | .500 | 0.00 | 50.00 | 0.00 | 0.00 |
| 1986 | Columbia Mets | SAL | A | NYN | - | 19 | P | | 11 | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 2 | 0 | 0 | 0 | 2 | 11 | 1 | 0 | .125 | .222 | .250 | .472 | .250 | .125 | .200 | 9.09 | 27.27 | 3.00 | 0.00 |
| Tot: | Minors (2 yrs) | | Minors | | | | | | 26 | 12 | 2 | 2 | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 5 | 0 | 2 | 0 | 0 | 0 | 4 | 15 | 2 | 0 | .167 | .231 | .333 | .564 | .250 | .167 | .286 | 6.67 | 33.33 | 5.00 | |
| Tot: | Rk (1 yrs) | | Rk | | | | | | 15 | 4 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 1 | 0 | .250 | .250 | .500 | .750 | .250 | .250 | .500 | 0.00 | 50.00 | | |
| Tot: | A (1 yrs) | | A | | | | | | 11 | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 2 | 0 | 0 | 0 | 2 | 11 | 1 | 0 | .125 | .222 | .250 | .472 | .250 | .125 | .200 | 9.09 | 27.27 | 3.00 | |