2021 Seattle Mariners Starters
(90-72) 
Starters
Starter Date Vs. IP BF W/L ER R H K BB HR Pit Str Ball Str%
Marco Gonzales Apr 1 @SFG 6.0 27 5 5 8 2 3 3 99 58 41 .59
Yusei Kikuchi Apr 2 @SFG 6.0 25 3 3 6 10 1 2 89 67 22 .75
Chris Flexen Apr 3 @SFG 5.0 20 W 0 0 4 6 2 0 94 56 38 .60
Justus Sheffield Apr 5 @CWS 5.0 26 L 4 6 8 5 2 1 92 54 38 .59
James Paxton Apr 6 @CWS 1.1 5 1 1 0 2 1 0 24 15 9 .63
Justin Dunn Apr 7 @CWS 4.2 22 3 3 1 3 8 0 93 48 45 .52
Marco Gonzales Apr 8 MIN 4.1 25 L 7 7 9 6 2 2 100 63 37 .63
Yusei Kikuchi Apr 10 MIN 6.0 24 2 2 5 6 2 1 94 58 36 .62
Chris Flexen Apr 11 MIN 5.0 26 5 6 8 5 2 1 84 53 31 .63
Justus Sheffield Apr 13 BAL 6.0 21 2 2 3 5 2 1 77 45 32 .58
Nick Margevicius Apr 13 (2) BAL 3.0 18 2 6 6 4 1 0 67 40 27 .60
Marco Gonzales Apr 15 BAL 5.0 20 W 2 2 3 5 2 1 83 54 29 .65
Justin Dunn Apr 15 (2) BAL 5.0 20 W 1 1 2 6 2 1 68 47 21 .69
Yusei Kikuchi Apr 16 @HOU 7.0 30 5 5 6 3 3 0 91 63 28 .69
Chris Flexen Apr 17 @HOU 6.0 26 L 1 1 10 3 0 0 86 54 32 .63
Nick Margevicius Apr 18 @HOU 4.0 15 1 2 1 3 1 0 77 52 25 .68
Justus Sheffield Apr 19 @LAD 5.2 25 W 3 3 4 6 3 1 94 62 32 .66
Marco Gonzales Apr 20 @LAD 7.0 24 L 1 1 2 6 1 0 101 66 35 .65
Justin Dunn Apr 22 BOS 5.0 23 2 2 6 5 1 1 100 64 36 .64
Yusei Kikuchi Apr 23 BOS 4.2 22 L 5 5 6 1 3 2 94 55 39 .59
Chris Flexen Apr 24 BOS 7.0 25 W 1 1 4 7 1 0 88 61 27 .69
Nick Margevicius Apr 25 BOS 0.1 7 L 4 4 2 1 4 0 32 13 19 .41
Justus Sheffield Apr 26 HOU 5.1 29 L 4 5 12 4 1 0 97 60 37 .62
Marco Gonzales Apr 27 HOU 6.0 25 L 2 2 5 4 3 0 95 61 34 .64
Justin Dunn Apr 28 HOU 5.2 23 3 3 4 2 2 0 84 51 33 .61
Yusei Kikuchi Apr 29 HOU 7.0 23 W 0 0 1 7 2 0 95 61 34 .64
Chris Flexen Apr 30 @LAA 4.0 17 3 3 4 0 1 1 87 53 34 .61
Ljay Newsome May 1 @LAA 2.0 15 L 8 8 7 1 2 3 52 35 17 .67
Justus Sheffield May 2 @LAA 6.0 25 W 0 0 2 4 3 0 103 62 41 .60
Erik Swanson May 3 @BAL 2.0 6 0 0 0 3 0 0 27 20 7 .74
Justin Dunn May 4 @BAL 5.1 23 1 1 3 6 4 1 88 57 31 .65
Yusei Kikuchi May 5 @BAL 7.0 26 L 3 3 5 7 1 1 87 61 26 .70
Chris Flexen May 7 TEX 6.1 27 W 4 4 10 2 1 1 97 64 33 .66
Erik Swanson May 8 TEX 2.2 10 1 1 2 0 1 1 45 30 15 .67
Justus Sheffield May 9 TEX 5.0 25 L 5 7 10 5 0 2 78 61 17 .78
Yusei Kikuchi May 11 LAD 6.1 26 3 3 6 11 1 1 106 71 35 .67
Justin Dunn May 12 LAD 3.1 16 L 2 2 3 2 3 0 72 40 32 .56
Logan Gilbert May 13 @CLE 4.0 18 L 4 4 5 5 0 2 71 52 19 .73
Chris Flexen May 14 @CLE 5.2 21 W 1 1 5 0 1 0 85 56 29 .66
Justus Sheffield May 15 @CLE 6.0 24 W 2 2 5 2 2 0 94 61 33 .65
Robert Dugger May 16 @CLE 3.0 10 0 0 0 4 1 0 49 31 18 .63
Yusei Kikuchi May 17 @DET 6.0 25 L 3 3 3 8 4 2 96 60 36 .63
Justin Dunn May 18 @DET 5.2 24 L 2 2 5 9 2 1 94 67 27 .71
Logan Gilbert May 19 @DET 2.2 14 L 3 3 4 2 2 0 74 43 31 .58
Chris Flexen May 21 SDP 1.2 16 L 8 8 10 1 1 2 67 40 27 .60
Justus Sheffield May 22 SDP 5.0 25 L 5 6 7 3 5 0 91 57 34 .63
Justin Dunn May 23 SDP 5.0 19 1 1 1 4 3 1 71 41 30 .58
Yusei Kikuchi May 24 OAK 6.0 23 W 1 1 4 3 2 1 88 59 29 .67
Logan Gilbert May 25 OAK 4.0 17 2 2 4 4 0 0 78 51 27 .65
Robert Dugger May 26 OAK 3.1 18 L 5 5 5 1 3 1 59 38 21 .64
Chris Flexen May 27 @TEX 7.0 24 W 0 0 3 6 1 0 87 60 27 .69
Justus Sheffield May 28 @TEX 5.0 20 W 2 2 6 1 2 0 74 45 29 .61
Justin Dunn May 29 @TEX 5.2 22 1 1 2 8 2 0 98 62 36 .63
Yusei Kikuchi May 30 @TEX 6.2 24 W 2 2 3 5 1 1 104 73 31 .70
Logan Gilbert May 31 @OAK 6.0 24 2 2 5 5 1 0 80 47 33 .59
Marco Gonzales Jun 1 @OAK 4.0 15 1 1 2 6 1 1 50 33 17 .66
Chris Flexen Jun 2 @OAK 6.0 26 L 5 5 7 3 1 1 98 67 31 .68
Justus Sheffield Jun 3 LAA 5.2 26 W 2 2 6 7 3 2 103 63 40 .61
Robert Dugger Jun 4 LAA 2.1 10 2 2 3 0 2 1 38 22 16 .58
Yusei Kikuchi Jun 5 LAA 4.0 18 3 4 6 8 0 2 64 48 16 .75
Logan Gilbert Jun 6 LAA 5.0 23 W 1 1 2 7 4 1 105 64 41 .61
Marco Gonzales Jun 8 DET 4.0 17 L 4 4 5 2 1 1 71 43 28 .61
Chris Flexen Jun 9 DET 6.0 23 3 3 6 3 1 1 83 58 25 .70
Justus Sheffield Jun 10 DET 4.0 22 L 4 5 7 3 1 2 87 50 37 .57
Justin Dunn Jun 11 CLE 3.0 19 L 5 5 9 3 2 1 72 49 23 .68
Yusei Kikuchi Jun 12 CLE 7.0 26 0 0 3 6 3 0 94 58 36 .62
Logan Gilbert Jun 13 CLE 6.2 24 W 1 1 4 6 1 0 92 60 32 .65
Marco Gonzales Jun 14 @MIN 5.0 24 3 3 8 5 2 2 91 65 26 .71
Chris Flexen Jun 15 @MIN 8.0 26 W 0 0 4 8 0 0 107 77 30 .72
Justus Sheffield Jun 16 @MIN 5.0 26 L 7 7 10 4 2 2 95 60 35 .63
Justin Dunn Jun 17 @TAM 2.0 7 0 0 1 1 0 0 30 19 11 .63
Yusei Kikuchi Jun 18 @TAM 7.0 28 W 1 1 4 6 3 0 103 66 37 .64
Logan Gilbert Jun 19 @TAM 5.2 23 4 4 6 7 0 2 100 68 32 .68
Marco Gonzales Jun 20 @TAM 6.1 25 2 2 5 6 3 0 87 51 36 .59
Chris Flexen Jun 22 @COL 6.2 24 1 1 4 6 2 1 100 66 34 .66
Justus Sheffield Jun 23 @COL 4.1 20 L 3 3 4 5 3 2 87 50 37 .57
Yusei Kikuchi Jun 25 CWS 5.2 21 W 1 1 2 6 4 1 90 55 35 .61
Logan Gilbert Jun 26 CWS 2.0 6 0 0 1 3 0 0 28 19 9 .68
Robert Dugger Jun 27 CWS 2.2 15 L 2 3 5 2 2 0 52 34 18 .65
Chris Flexen Jun 29 TOR 5.0 25 3 3 7 2 3 0 89 54 35 .61
Justus Sheffield Jun 30 TOR 4.0 21 4 4 7 3 3 0 95 53 42 .56
Yusei Kikuchi Jul 1 TOR 7.0 25 W 1 1 5 6 1 1 100 64 36 .64
Logan Gilbert Jul 2 @TEX 5.2 23 2 3 5 6 2 0 101 65 36 .64
Marco Gonzales Jul 3 @TEX 3.1 21 L 6 7 7 4 2 3 81 48 33 .59
Chris Flexen Jul 4 @TEX 6.0 22 W 1 1 4 5 0 0 81 57 24 .70
Justus Sheffield Jul 6 @NYY 1.2 14 L 6 6 5 2 3 1 63 37 26 .59
Yusei Kikuchi Jul 7 @NYY 5.0 26 L 5 5 8 5 3 1 94 61 33 .65
Logan Gilbert Jul 8 @NYY 7.0 23 W 0 0 1 8 0 0 103 67 36 .65
Marco Gonzales Jul 9 @LAA 5.2 24 3 3 7 3 1 2 103 64 39 .62
Chris Flexen Jul 10 @LAA 7.0 25 W 0 0 3 6 2 0 95 59 36 .62
Hector Santiago Jul 11 @LAA 3.0 12 1 1 2 1 1 1 33 24 9 .73
Chris Flexen Jul 16 LAA 7.0 27 W 1 1 6 2 1 1 79 53 26 .67
Yusei Kikuchi Jul 17 LAA 5.0 25 L 7 7 9 7 1 2 83 60 23 .72
Logan Gilbert Jul 18 LAA 5.1 24 W 2 2 4 9 2 0 94 60 34 .64
Marco Gonzales Jul 20 COL 5.0 22 W 2 2 6 3 3 1 85 55 30 .65
Keynan Middleton Jul 21 COL 1.0 9 L 5 5 5 1 1 0 30 21 9 .70
Chris Flexen Jul 22 @OAK 5.1 24 L 2 2 6 1 2 0 97 55 42 .57
Yusei Kikuchi Jul 23 @OAK 6.0 23 3 3 6 12 1 2 95 68 27 .72
Logan Gilbert Jul 24 @OAK 2.2 14 3 3 5 5 1 0 75 48 27 .64
Marco Gonzales Jul 25 @OAK 5.2 24 W 2 2 5 4 2 1 105 71 34 .68
Darren McCaughan Jul 26 @HOU 4.0 22 7 7 8 2 1 3 86 57 29 .66
Chris Flexen Jul 27 @HOU 4.0 21 L 7 7 9 3 0 1 75 51 24 .68
Yusei Kikuchi Jul 28 @HOU 5.0 25 L 3 4 7 7 2 1 101 72 29 .71
Logan Gilbert Jul 30 TEX 5.2 24 W 4 4 6 6 1 2 90 60 30 .67
Tyler Anderson Jul 31 TEX 5.1 22 3 3 6 3 0 1 87 62 25 .71
Marco Gonzales Aug 1 TEX 6.0 23 1 1 5 4 0 0 88 64 24 .73
Chris Flexen Aug 2 TAM 6.2 28 W 2 2 7 6 2 1 113 71 42 .63
Yusei Kikuchi Aug 3 TAM 6.0 25 W 1 2 6 5 2 1 92 59 33 .64
Logan Gilbert Aug 4 TAM 5.0 23 L 3 3 4 6 4 0 86 52 34 .60
Tyler Anderson Aug 5 NYY 5.0 22 2 2 5 4 2 0 87 57 30 .66
Marco Gonzales Aug 6 NYY 6.2 25 0 0 3 5 2 0 108 66 42 .61
Chris Flexen Aug 7 NYY 5.0 24 3 3 8 7 1 2 98 59 39 .60
Yusei Kikuchi Aug 8 NYY 5.0 23 0 0 4 6 3 0 97 57 40 .59
Logan Gilbert Aug 10 @TEX 6.0 23 2 2 5 5 0 1 97 64 33 .66
Tyler Anderson Aug 11 @TEX 5.1 22 1 1 6 4 0 0 94 70 24 .74
Marco Gonzales Aug 12 @TEX 9.0 29 W 1 1 2 9 1 1 108 73 35 .68
Chris Flexen Aug 13 @TOR 6.0 24 2 2 6 3 1 0 73 46 27 .63
Yusei Kikuchi Aug 14 @TOR 4.1 23 3 3 5 5 4 1 97 54 43 .56
Logan Gilbert Aug 15 @TOR 4.0 20 L 5 5 8 3 0 2 88 60 28 .68
Tyler Anderson Aug 17 TEX 6.0 21 W 1 1 3 4 0 1 83 57 26 .69
Marco Gonzales Aug 18 TEX 5.1 21 W 0 0 6 3 1 0 92 61 31 .66
Chris Flexen Aug 19 TEX 7.0 26 1 2 4 5 1 1 105 70 35 .67
Yusei Kikuchi Aug 20 HOU 2.2 18 L 7 7 7 2 3 3 72 43 29 .60
Logan Gilbert Aug 21 HOU 4.2 23 L 9 9 8 5 1 2 94 61 33 .65
Tyler Anderson Aug 22 HOU 5.1 25 2 2 8 4 1 1 94 66 28 .70
Marco Gonzales Aug 23 OAK 6.0 22 3 3 5 2 0 2 90 59 31 .66
Chris Flexen Aug 24 OAK 6.2 28 W 1 1 6 5 1 0 105 66 39 .63
Yusei Kikuchi Aug 26 @KCR 5.0 20 4 4 4 3 1 0 65 43 22 .66
Logan Gilbert Aug 27 @KCR 4.0 22 5 5 9 5 1 1 91 60 31 .66
Tyler Anderson Aug 28 @KCR 7.0 29 L 3 3 8 6 0 2 92 71 21 .77
Marco Gonzales Aug 29 @KCR 7.0 27 W 2 2 5 4 2 2 96 67 29 .70
Chris Flexen Aug 30 @HOU 5.2 27 2 2 8 4 2 0 102 65 37 .64
Yusei Kikuchi Aug 31 @HOU 7.0 26 0 0 4 4 2 0 95 60 35 .63
Logan Gilbert Sep 1 @HOU 5.0 19 0 0 4 4 0 0 94 62 32 .66
Tyler Anderson Sep 3 ARI 6.0 23 3 3 4 5 1 0 87 58 29 .67
Marco Gonzales Sep 4 ARI 5.0 25 W 5 5 8 2 1 2 86 54 32 .63
Chris Flexen Sep 5 ARI 6.0 24 3 3 4 4 2 1 89 57 32 .64
Yusei Kikuchi Sep 6 HOU 1.2 12 L 4 6 3 0 4 1 42 19 23 .45
Logan Gilbert Sep 7 HOU 4.1 21 2 2 6 5 1 1 84 53 31 .63
Tyler Anderson Sep 8 HOU 4.2 24 4 4 7 4 3 2 80 49 31 .61
Marco Gonzales Sep 10 @ARI 6.0 24 W 0 3 4 3 1 1 101 64 37 .63
Chris Flexen Sep 11 @ARI 5.0 22 L 5 5 6 4 2 1 79 52 27 .66
Yusei Kikuchi Sep 12 @ARI 5.0 21 1 1 6 8 1 0 76 54 22 .71
Logan Gilbert Sep 13 @BOS 6.0 24 2 2 5 9 1 1 99 64 35 .65
Tyler Anderson Sep 14 @BOS 4.1 19 1 1 4 5 2 1 90 61 29 .68
Marco Gonzales Sep 15 @BOS 6.0 23 3 3 3 7 2 1 110 71 39 .65
Chris Flexen Sep 17 KCR 5.2 23 W 1 1 6 3 2 0 90 57 33 .63
Yusei Kikuchi Sep 18 KCR 3.0 17 L 3 3 8 3 0 0 86 54 32 .63
Logan Gilbert Sep 19 KCR 7.0 25 W 1 1 3 5 1 0 99 61 38 .62
Tyler Anderson Sep 20 OAK 7.0 25 W 1 1 4 7 1 0 91 66 25 .73
Marco Gonzales Sep 21 OAK 6.0 23 W 2 2 4 3 1 2 99 62 37 .63
Chris Flexen Sep 22 OAK 7.0 25 W 1 1 3 8 2 1 100 65 35 .65
Yusei Kikuchi Sep 23 OAK 3.0 16 3 3 3 3 4 0 72 40 32 .56
Logan Gilbert Sep 24 LAA 5.1 24 4 4 5 4 3 1 110 70 40 .64
Tyler Anderson Sep 25 LAA 2.0 15 L 9 9 9 0 1 1 54 37 17 .69
Marco Gonzales Sep 26 LAA 7.0 27 W 1 1 3 5 3 1 96 65 31 .68
Chris Flexen Sep 27 @OAK 5.0 23 W 4 4 7 6 1 1 95 65 30 .68
Tyler Anderson Sep 28 @OAK 4.0 14 1 1 2 2 0 1 46 40 6 .87
Logan Gilbert Sep 29 @OAK 5.2 22 1 1 3 4 2 1 92 55 37 .60
Marco Gonzales Oct 1 @LAA 6.0 23 L 2 2 3 5 2 0 99 64 35 .65
Chris Flexen Oct 2 @LAA 5.1 22 1 1 6 1 1 1 83 58 25 .70
Tyler Anderson Oct 3 @LAA 1.2 12 L 3 4 5 0 2 1 37 24 13 .65
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