2017-18: Finished third in the 100 breast with a season-best time of 1:02.63 at the TYR Invitational (11/17-19) ... Also came in eleventh in the 50 breast ... Swam a season-best 2:19.71 200 breast at the Big Ten Championship (2.17).
2016-2017: Extremely successful sophomore breast swimmer… First on the Northwestern top-time list in the 100 and 200 breast…also on the list in four other events…Swam the 5th fastest 100 breast in Northwestern history at the Big Ten Championships (2/15), after swimming the 7th fastest time at the Championships last year…It was also a career best time of 1:02.58... Earned a second swim in the 100 breast… Also finished 16th in the 200 breast at the Big Ten Championships… Member of the 400 medley relay team that took 11th… Swam season best times in the 200 breast (2:12.58), 50 breast (29.57), 100 IM (58.48) and 200 IM (2:04.77) at the TYR Invitational (11/20)…Finished in first, tenth, eleventh and eleventh respectively at the TYR…Her 200 breast time was good enough for an NCAA ‘B’ Cut…Came in first in the 200 breast and second in the 100 breast at the Chicago Quad Dual (10/22)… Finished in the top 10 at every meet in the 100 and 200 breast except one… Finished second in the 200 breast and third in the 100 breast against Notre Dame (1/14)… Turned in a fourth-place finish in the 100 breast and fifth-place finish in the 200 breast at the UK Quad Meet (11/5)… Came in second in the 200 breast and third in the 100 breast against Notre Dame (1/14)… Took third in the 100 and 200 breast at Iowa (1/21) and finished sixth in the 200 IM… Academic All-Big Ten.
2015-16: Dominant freshman breaststroker ... Earned spots in the program's historic top ten in both the 100 and 200 breast ... Fastest Wildcat in the 200 breast this season ... Became the third-fastest Northwestern swimmer in the 200 breast in program history at the Big Ten Championships (2/20) ... Came in a swim-off, finishing in 2:13.34 ... Also the fastest NU time this season ... Recorded three 'B' cuts in the event that day in total, in the prelims, swim-off, and finals ... Also swam career-best times in the 100 breast and 200 IM at the Championships preliminaries ... Paced the Wildcats in the 200 breast with her sixth-place time of 2:20.94 in the triple dual with Minnesota and Purdue (1/29-30) ... Picked up a pair of second-place finishes in the 200 breast and 200 IM versus Iowa (1/23) ... Swam a season-best time of 2:06.28 in the 200 IM at Notre Dame (1/16) ... Registered a time of 1:03.95 in the 100 breast at the TYR Invitational (11/20-22), which is second-best for NU so far ... Second-place time of 2:17.01 in the 200 breast is also second-best this year ... The time makes her the ninth-fastest Wildcat swimmer in that event in program history ... Swam a fourth-place time of 2:22.03 in the 200 breast versus Wisconsin (11/14) ... Finished in sixth place in the 100 breast at Illinois (10/30) ... Took home first place in the 200 breast (2:21.37) in her first-ever collegiate appearance at the Chicago Quad (10/24) ... Also finished in third in the 200 fly (2:06.66).
High School: Two-time Kentucky High School Athletic Association All-State first team ... NISCA/Speedo High School All-American in the breaststroke ... Led her high school to the 2012 Kentucky state championship as a member of the 100 medley relay team ... Two-time team MVP and Scholastic All-American ... Swam club for seven years with the Lakeside Seahawks ... Won gold in the 200-meter breaststroke at the 2013 Maccabiah Games in Israel ... Competed in the 2013 World Championship trials finishing 22nd in the 200-meter breaststroke ... Club team captain ... Honor roll member.
Personal: Born Peyton Alyse Greenberg ... Daughter of Richard and Deborah Greenberg ... Chose Northwestern over Arizona State, Tulane, North Carolina and Tennessee ... Major is International Studies and Communication Studies.
2016-2017: Extremely successful sophomore breast swimmer… First on the Northwestern top-time list in the 100 and 200 breast…also on the list in four other events…Swam the 5th fastest 100 breast in Northwestern history at the Big Ten Championships (2/15), after swimming the 7th fastest time at the Championships last year…It was also a career best time of 1:02.58... Earned a second swim in the 100 breast… Also finished 16th in the 200 breast at the Big Ten Championships… Member of the 400 medley relay team that took 11th… Swam season best times in the 200 breast (2:12.58), 50 breast (29.57), 100 IM (58.48) and 200 IM (2:04.77) at the TYR Invitational (11/20)…Finished in first, tenth, eleventh and eleventh respectively at the TYR…Her 200 breast time was good enough for an NCAA ‘B’ Cut…Came in first in the 200 breast and second in the 100 breast at the Chicago Quad Dual (10/22)… Finished in the top 10 at every meet in the 100 and 200 breast except one… Finished second in the 200 breast and third in the 100 breast against Notre Dame (1/14)… Turned in a fourth-place finish in the 100 breast and fifth-place finish in the 200 breast at the UK Quad Meet (11/5)… Came in second in the 200 breast and third in the 100 breast against Notre Dame (1/14)… Took third in the 100 and 200 breast at Iowa (1/21) and finished sixth in the 200 IM… Academic All-Big Ten.
2015-16: Dominant freshman breaststroker ... Earned spots in the program's historic top ten in both the 100 and 200 breast ... Fastest Wildcat in the 200 breast this season ... Became the third-fastest Northwestern swimmer in the 200 breast in program history at the Big Ten Championships (2/20) ... Came in a swim-off, finishing in 2:13.34 ... Also the fastest NU time this season ... Recorded three 'B' cuts in the event that day in total, in the prelims, swim-off, and finals ... Also swam career-best times in the 100 breast and 200 IM at the Championships preliminaries ... Paced the Wildcats in the 200 breast with her sixth-place time of 2:20.94 in the triple dual with Minnesota and Purdue (1/29-30) ... Picked up a pair of second-place finishes in the 200 breast and 200 IM versus Iowa (1/23) ... Swam a season-best time of 2:06.28 in the 200 IM at Notre Dame (1/16) ... Registered a time of 1:03.95 in the 100 breast at the TYR Invitational (11/20-22), which is second-best for NU so far ... Second-place time of 2:17.01 in the 200 breast is also second-best this year ... The time makes her the ninth-fastest Wildcat swimmer in that event in program history ... Swam a fourth-place time of 2:22.03 in the 200 breast versus Wisconsin (11/14) ... Finished in sixth place in the 100 breast at Illinois (10/30) ... Took home first place in the 200 breast (2:21.37) in her first-ever collegiate appearance at the Chicago Quad (10/24) ... Also finished in third in the 200 fly (2:06.66).
High School: Two-time Kentucky High School Athletic Association All-State first team ... NISCA/Speedo High School All-American in the breaststroke ... Led her high school to the 2012 Kentucky state championship as a member of the 100 medley relay team ... Two-time team MVP and Scholastic All-American ... Swam club for seven years with the Lakeside Seahawks ... Won gold in the 200-meter breaststroke at the 2013 Maccabiah Games in Israel ... Competed in the 2013 World Championship trials finishing 22nd in the 200-meter breaststroke ... Club team captain ... Honor roll member.
Personal: Born Peyton Alyse Greenberg ... Daughter of Richard and Deborah Greenberg ... Chose Northwestern over Arizona State, Tulane, North Carolina and Tennessee ... Major is International Studies and Communication Studies.
GREENBERG'S CAREER BESTS
| Event | Career Best |
| 100 breast | 1:03.95 |
| 200 breast | 2:13.34 |
| 200 fly | 2:06.66 |
| 200 IM | 2:04.31 |
| 400 IM | 4:40.29 |