Mackenzie O'Brien

Age: 9 years, 5 months
Team: Tollefson Swimming (PVTOLL)

25 Yd. FR 17.97 (N/A)
2024 RMSC Mini Championships 3/9/24
  Club:
5  PV:
177
 
50 Yd. FR 35.71 (BB)
2024 PV November Open - Fairla 11/17/24
Gold 32.69 (-3.02) Club:
8  PV:
252
A 32.09 (-3.62)
100 Yd. FR 1:20.98 (BB)
2024 PV November Open - Fairla 11/16/24
Gold 1:12.29 (-8.69) Club:
5  PV:
214
A 1:11.49 (-9.49)
25 Yd. BK 22.15 (N/A)
2024 Little Blue Penguin Penta 1/28/24
  Club:
5  PV:
216
 
50 Yd. BK 43.50 (B)
2024 PV November Open - Fairla 11/16/24
Gold 38.29 (-5.21) Club:
8  PV:
312
BB 43.29 (-0.21)
100 Yd. BK 1:38.06 (B)
2024 PV November Open - Fairla 11/17/24
Gold 1:22.49 (-15.57) Club:
9  PV:
287
BB 1:33.99 (-4.07)
25 Yd. BR 23.64 (N/A)
2024 RMSC Mini Championships 3/10/24
  Club:
2  PV:
92
 
50 Yd. BR 45.17 (BB)
2024 PAC 10 & Under RockHopper 10/26/24
Gold 43.09 (-2.08) Club:
5  PV:
108
A 42.79 (-2.38)
100 Yd. BR 1:34.30 (BB)
2024 PV November Open - Fairla 11/16/24
Gold 1:33.39 (-0.91) Club:
3  PV:
51
A 1:33.59 (-0.71)
25 Yd. FL 21.26 (N/A)
2024 RMSC Mini Championships 3/9/24
  Club:
5  PV:
206
 
50 Yd. FL 41.80 (BB)
2024 PV November Open - Fairla 11/16/24
Gold 37.09 (-4.71) Club:
5  PV:
217
A 36.99 (-4.81)
100 Yd. IM 1:27.67 (BB)
2024 PV November Open - Fairla 11/17/24
Gold 1:22.09 (-5.58) Club:
4  PV:
129
A 1:22.09 (-5.58)
50 M FR 42.10 (B)
2024 FISH LC Derby 5/5/24
Gold 37.29 (-4.81) Club:
4  PV:
143
BB 40.89 (-1.21)
100 M BR 2:01.24 (BB)
2024 FISH LC Derby 5/5/24
Gold 1:48.49 (-12.75) Club:
2  PV:
88
A 1:48.39 (-12.85)
Compare Athlete

2024 PV November Open - Fairla
laurel , MD , 11/15/2024 to 11/17/2024
Team:PVTOLL - Age:9
EventPlaceEntryTimeDiff
#4A Girls 09-10 100 Yard Free 15 1:21.44 1:20.98 -0.46
#5A Girls 09-10 50 Yard Fly 17 42.40 41.80 -0.60
#6A Girls 09-10 100 Yard Breast 2 1:34.30 -
#7A Girls 09-10 50 Yard Back 24 43.50 -
#27A Girls 09-10 50 Yard Free 16 36.05 35.71 -0.34
#28A Girls 09-10 100 Yard Medley 6 1:29.91 1:27.67 -2.24
#29A Girls 09-10 50 Yard Breast 11 45.17 45.50 0.33
#30A Girls 09-10 100 Yard Back 22 1:38.06 -

2024 PAC 10 & Under RockHopper
Laurel , MD , 10/26/2024
Team:PVTOLL - Age:9
EventPlaceEntryTimeDiff
#7 Girls 09-10 50 Yard Fly 16 42.40 42.42 0.02
#19 Girls 09-10 50 Yard Breast 7 46.34 45.17 -1.17
#25 Girls 09-10 50 Yard Free 13 36.98 36.05 -0.93
#31 Girls 09-10 100 Yard Medley 10 1:31.99 1:29.91 -2.08

2024 PV October Open - Fairlan
Laurel , MD , 10/11/2024 to 10/13/2024
Team:PVTOLL - Age:9
EventPlaceEntryTimeDiff
#45 Mixed 09-10 50 Yard Fly 33 48.07 42.40 -5.67
#46 Mixed 09-10 100 Yard Medley 31 1:36.79 1:31.99 -4.80
#47 Mixed 09-10 50 Yard Breast 15 58.68 46.34 -12.34
#48 Mixed 09-10 100 Yard Free 19 1:21.44 1:25.14 3.70

2024 PAC All Freestyle Meet
Laurel , MD , 9/28/2024
Team:PVTOLL - Age:9
EventPlaceEntryTimeDiff
#5 Girls 09-10 50 Yard Free 52 37.74 36.98 -0.76
#15 Girls 09-10 100 Yard Free 32 1:21.44 -

2024 FISH LC Derby
Fairfax , VA , 5/4/2024 to 5/5/2024
Team:PVTOLL - Age:8
EventPlaceEntryTimeDiff
#35 Girls 12 & Under 50 Meter Free 71 50.98 42.10 -8.88
#37 Girls 12 & Under 100 Meter Breast 33 2:20.56 2:01.24 -19.32
#39 Girls 12 & Under 50 Meter Fly 0 57.87 DQ -

2024 RMSC Mini Championships
Olney , MD , 3/9/2024 to 3/10/2024
Team:PVTOLL - Age:8
EventPlaceEntryTimeDiff
#11C Girls 08 25 Yard Fly 19 21.19 21.26 0.07
#17C Girls 08 25 Yard Free 9 18.09 17.97 -0.12
#19C Girls 08 100 Yard Medley 5 1:38.42 1:36.79 -1.63
#27A Girls 08 50 Yard Free 4 40.21 37.74 -2.47
#31C Girls 08 25 Yard Breast 4 24.12 23.64 -0.48
#33A Girls 08 50 Yard Fly 12 48.07 -

2024 Little Blue Penguin Penta
Laurel , MD , 1/28/2024
Team:PVTOLL - Age:8
EventPlaceEntryTimeDiff
#3 Girls 07-08 50 Yard Free 3 40.21 -
#9 Girls 07-08 25 Yard Fly 19 21.19 22.06 0.87
#15 Girls 07-08 25 Yard Back 9 21.89 22.15 0.26
#21 Girls 07-08 25 Yard Breast 5 24.94 24.12 -0.82
#33 Girls 08 & Under 100 Yard Medley 4 1:41.97 1:38.42 -3.55

2023 PV Machine Spring Qualifi
Springfield , VA , 2/24/2023 to 2/26/2023
Team:PVMACH - Age:7
EventPlaceEntryTimeDiff
#91 Girls 08 & Under 25 Yard Breast 2 25.03 25.13 0.10
#99 Girls 08 & Under 25 Yard Free 9 20.67 21.61 0.94

2022 PV Splash and Dash
Laurel , MD , 12/17/2022
Team:PVMACH - Age:7
EventPlaceEntryTimeDiff
#7B Girls 07-08 25 Yard Free 9 22.29 -
#21B Girls 07-08 25 Yard Breast 2 25.57 27.28 1.71

2022 PV Odd Ball Challenge
Laurel , MD , 11/19/2022 to 11/20/2022
Team:PVMACH - Age:7
EventPlaceEntryTimeDiff
#1 Girls 06-07 50 Yard Breast 0 NS -
#75 Girls 06-07 50 Yard Free 4 58.21 -

2022 PV Fall Gator Mini Meet
Arlington , VA , 10/22/2022 to 10/23/2022
Team:PVMACH - Age:7
EventPlaceEntryTimeDiff
#47 Girls 07 25 Yard Breast 4 25.57 -
EventMeetDateTimeDiff
25 Free SCY 2024 RMSC Mini Championships 3/9/24 17.97 -3.64
25 Free SCY 2023 PV Machine Spring Qualifi 2/26/23 21.61 -0.68
25 Free SCY 2022 PV Splash and Dash 12/17/22 22.29 0
 
25 Back SCY 2024 Little Blue Penguin Penta 1/28/24 22.15 0
 
25 Breast SCY 2024 RMSC Mini Championships 3/10/24 23.64 -0.48
25 Breast SCY 2024 Little Blue Penguin Penta 1/28/24 24.12 -1.01
25 Breast SCY 2023 PV Machine Spring Qualifi 2/26/23 25.13 -2.15
25 Breast SCY 2022 PV Splash and Dash 12/17/22 27.28 1.71
25 Breast SCY 2022 PV Fall Gator Mini Meet 10/23/22 25.57 0
 
25 Fly SCY 2024 RMSC Mini Championships 3/9/24 21.26 -0.8
25 Fly SCY 2024 Little Blue Penguin Penta 1/28/24 22.06 0
 
50 Free SCY 2024 PV November Open - Fairla 11/17/24 35.71 -0.34
50 Free SCY 2024 PAC 10 & Under RockHopper 10/26/24 36.05 -0.93
50 Free SCY 2024 PAC All Freestyle Meet 9/28/24 36.98 -0.76
50 Free SCY 2024 RMSC Mini Championships 3/10/24 37.74 -2.47
50 Free SCY 2024 Little Blue Penguin Penta 1/28/24 40.21 -18
50 Free SCY 2022 PV Odd Ball Challenge 11/20/22 58.21 0
 
50 Back SCY 2024 PV November Open - Fairla 11/16/24 43.50 0
 
50 Breast SCY 2024 PV November Open - Fairla 11/17/24 45.50 0.33
50 Breast SCY 2024 PAC 10 & Under RockHopper 10/26/24 45.17 -1.17
50 Breast SCY 2024 PV October Open - Fairlan 10/13/24 46.34 0
50 Breast SCY 2022 PV Odd Ball Challenge 11/19/22 NS 0
 
50 Fly SCY 2024 PV November Open - Fairla 11/16/24 41.80 -0.62
50 Fly SCY 2024 PAC 10 & Under RockHopper 10/26/24 42.42 0.02
50 Fly SCY 2024 PV October Open - Fairlan 10/13/24 42.40 -5.67
50 Fly SCY 2024 RMSC Mini Championships 3/10/24 48.07 0
 
100 Free SCY 2024 PV November Open - Fairla 11/16/24 1:20.98 -4.16
100 Free SCY 2024 PV October Open - Fairlan 10/13/24 1:25.14 3.7
100 Free SCY 2024 PAC All Freestyle Meet 9/28/24 1:21.44 0
 
100 Back SCY 2024 PV November Open - Fairla 11/17/24 1:38.06 0
 
100 Breast SCY 2024 PV November Open - Fairla 11/16/24 1:34.30 0
 
100 Medley SCY 2024 PV November Open - Fairla 11/17/24 1:27.67 -2.24
100 Medley SCY 2024 PAC 10 & Under RockHopper 10/26/24 1:29.91 -2.08
100 Medley SCY 2024 PV October Open - Fairlan 10/13/24 1:31.99 -4.8
100 Medley SCY 2024 RMSC Mini Championships 3/9/24 1:36.79 -1.63
100 Medley SCY 2024 Little Blue Penguin Penta 1/28/24 1:38.42 0
 
50 Free LCM 2024 FISH LC Derby 5/5/24 42.10 0
 
50 Fly LCM 2024 FISH LC Derby 5/5/24 DQ 0
 
100 Breast LCM 2024 FISH LC Derby 5/5/24 2:01.24 0