With the win Auburn won its fourth SEC series of the season and moved to 31-20, 11-16 SEC.
Auburn sent 15 men to the plate in the eighth inning after collecting just six hits in the prior seven innings.
Reliever Justin Camp (4-1) took the loss for Auburn, allowing a tie-breaking home run to Keaton Steele as part of Missouri's three-run fourth.
Auburn fell behind in the third- and fifth- innings but used a two-run seventh and a three-run ninth to pick up its first win at Samford since 2010.
O'Neal moved to 7-2 with the win, becoming the first pitcher to surpass seven wins in a single season since Grant Dayton was 8-3 at the end of the 2010 season
2-21-14 UAPB vs Auburn Baseball
2013 - SOPHOMORE YEAR
Pitched in 15 games, all in relief ... Went 3-0 with a 3.46 ERA ... Struck out 19 batters and walked just six in 26.0 innings of work ... Gave up 13 runs (10 earned) on 29 hits ... Opponents batted .290 against him ... Longest outing of season came in first appearance vs. Maine, where he pitched 3.1 innings, giving up one run on three hits while striking out two to pick up his first collegiate win (2/17) ... Gave up three unearned runs in one inning of relief at Kennesaw State (2/26) ... Got another win in relief vs. Brown, pitching 1.2 innings while giving up one run (3/8) ... Tagged for three runs on five hits in 1.2 innings vs. #2 Vanderbilt (3/16) ... Had a stretch of four games (March 24-April 13), including three in SEC play, where he did not give up a run ... Stretch spanned 5.0 innings ... Pitched a scoreless inning of relief at LSU (3/24) ... Another scoreless 1.1 innings of relief at Texas A&M with a season-high three strikeouts (4/7) ... Two scoreless, hitless innings vs. Alabama State (4/10) ... Gave up two hits but did not surrender a run in 0.2 innings vs. Georgia (4/13) ... Went 2.0 innings at Samford and gave up just one run in a 6-2 Auburn win (4/16) ... Pitched 2.2 innings of scoreless ball while giving up just one hit in loss at Missouri (4/28) ... Scattered three hits over 2.1 scoreless innings in comeback win over Ole Miss (5/5) ... Gave up two runs on three hits in 2.2 innings at Jacksonville State (5/7) ... Earned third win of season and first in SEC play with 2.2 innings of 2-hit, 1-run ball at Florida (5/12) ... Retired the only batter he faced in final appearance of season vs. Arkansas (5/17).
2012 - FRESHMAN YEAR
Went 0-0 with a 2.70 ERA in four relief appearances (6 2/3 innings) ... Half of his appearances came in SEC play (0-0, 2.45 ERA, three innings) ... Allowed just one hit to a left-handed hitter (1-for-12, .083) ... Teams hit .200 (4-for-20) against him with runners on ... Threw 1 1/3 scoreless innings on Thursday against No. 2 Florida (5/17) ... Came in with a man on on second and two outs and got a pop-up from the leadoff hitter, Nolan Fontana ... Allowed an unearned run when he committed a pair of ninth-inning errors in the 9-8 loss to Purdue (3/2) ... Threw a total of one inning and allowed the unearned run and one one hit ... Allowed one run on three hits in two innings of relief work in his debut (at Arizona, 2/24).
Played for Brett Boutwell at UMS-Wright ... Was 10-6 with a 2.13 ERA in 85 innings as a senior, striking out 91 and walking 27 ... Also hit .480 with five home runs and a .570 on base percentage, driving in 42 RBI ... Was 12-1 with a 1.99 ERA in 81 innings as a junior, striking out 98 and walking 19 ... Also hit .491 with eight home runs and a .586 on base percentage, driving in 35 RBI ... Alabama 4A Player of the Year ... 2010 and 2011 First Team All-State ... 2010 and 2011 AHSAA North-South All-Star ... Also played football and was a 2009 Mobile Press-Register First Team selection and won the 2008 4A state championship.
Chase Williamson ... Son of Tony and Carey Williamson ... Has a sister, Kristin ... Major: physical activity and health.