50 free: 19.30
100 free: 42.95
200 free: 1:33.89 FSU RECORD
Won the 200 free (1:38.63) against Florida Southern…finished fourth in the 50 free (20.81) and tied for third in the 100 free (45.74) vs. No. 9 UF…finished in third place in the 50 free (20.68) and was seventh in the 100 free (46.09) at Georgia Tech..won the 50 free (20.58) before placing fourth in the 100 free (45.76) vs. Minnesota…was fourth in the 50 free (20.69) and seventh in the 100 free (46.52) against Duke…was victorious in the 50 free (20.51) and third in the 100 free (45.50) at No. 12 Notre Dame.
Set the school record in the 200 free as the lead-off swimmer at the NCAA Championships in the 800 free relay…helped FSU capture two All-American finishes at NCAAs by taking fifth in both the 200 free and 400 free relay – both of which are the highest finishes at the meet in those events…is also apart of the school records for both the 200 free and 400 free relays…helped the Seminoles win gold in the 200 free relay at the ACC Championships and silver in the 400 free relay…swam the third leg of the 800 free relay that set the school record at 6:18.35…won the consolation heat of the 50 free with a personal best of 19.44, took 10th in the 200 free (1:34.61) and was 11th in the 100 free (42.95) at ACCs… was third in the 200 free (1:40.92), sixth in the 50 free (20.74) and ninth in the 100 free (46.44) against Alabama…had a strong GT Invite where he helped the Noles qualify for the NCAA Championships in the 200 free and 400 free relays and was also apart of the team that earn a provisional standard in the 200 medley relay…placed ninth in the 50 free (19.80), seventh in the 200 free (1:36.60) and 12th in the 100 free (43.79).
Competed at the LEN European Short Course Championships in December of 2017 in the 50 & 100 free. Ksiazek placed eighth in the 50m free with a time of 22.91 at the 2017 Polish Senior National Championships and was also 12th in the 100m free (50.25).