swimMakenna O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.49 | AA+0.70s to AAA·+0.70s to Sectionals | 2020-10-17 | 2020 MR LIAC Chappy's Big Race Invite |
| 100 Freestyle | SCY | 48.27 | AAAA·US Open ✓ | 2021-02-20 | 2021 MR TS Time Trial February 20th |
| 200 Freestyle | SCY | 2:01.61 | AA+4.82s to AAA·+6.62s to Sectionals | 2021-03-12 | 2021 MR LIAC Virtual Championship |
| 500 Freestyle | SCY | 5:21.64 | AA+8.75s to AAA·+12.85s to Sectionals | 2022-01-14 | 2022 MR NBS Sharks Trials & Finals Meet |
| 1650 Freestyle | SCY | 18:19.74 | AA+19.05s to AAA·+30.35s to Sectionals | 2020-11-07 | 2020 MR Team Suffolk Time Trial |
| 100 Backstroke | SCY | 1:01.49 | A+0.40s to AA·+2.20s to Sectionals | 2022-01-14 | 2022 MR NBS Sharks Trials & Finals Meet |
| 200 Backstroke | SCY | 2:15.91 | A+3.02s to AA·+7.02s to Sectionals | 2022-01-14 | 2022 MR NBS Sharks Trials & Finals Meet |
| 100 Breaststroke | SCY | 1:06.09 | AAA+2.20s to AAAA·Sectionals ✓+0.60s to Futures | 2024-02-15 | 2024 MR TYR Senior Mets SCY Championships |
| 200 Breaststroke | SCY | 2:25.51 | AA+0.22s to AAA·Sectionals ✓+2.82s to Futures | 2022-02-17 | 2022 MR TYR Senior Mets SCY Championships |
| 100 Butterfly | SCY | 57.98 | AAA+2.59s to AAAA·Sectionals ✓+1.39s to Futures | 2022-02-17 | 2022 MR TYR Senior Mets SCY Championships |
| 200 Butterfly | SCY | 2:08.68 | AA+0.19s to AAA·Sectionals ✓+3.29s to Futures | 2020-09-19 | 2020 MR LIAC Fall of COVID |
| 200 Individual Medley | SCY | 2:08.89 | AAA+4.30s to AAAA·Sectionals ✓+2.50s to Futures | 2022-10-26 | 2022 MR OB Section 11 League 1 Championshipvenue |
| 400 Individual Medley | SCY | 4:36.38 | AAA+10.99s to AAAA·Sectionals ✓+5.69s to Futures | 2020-11-20 | 2020 MR LIAC Thanksgiving Invite |
| 50 Freestyle | LCM | 29.40 | AA+1.01s to AAA·+1.11s to Sectionals | 2021-05-15 | 2021 MR LIAC Spring Kickoff Invitational |
| 100 Freestyle | LCM | 1:03.27 | AA+1.88s to AAA·+2.58s to Sectionals | 2024-07-24 | 2024 Futures Championships - Austin |
| 200 Freestyle | LCM | 2:21.19 | A+2.10s to AA·+10.30s to Sectionals | 2023-05-14 | 2023 MR LIAC Spring Kickoff Invitationalvenue |
| 100 Backstroke | LCM | 1:15.49 | BB+1.30s to A·+7.60s to Sectionals | 2023-05-14 | 2023 MR LIAC Spring Kickoff Invitationalvenue |
| 200 Backstroke | LCM | 2:43.33 | BB+2.14s to A·+17.14s to Sectionals | 2021-06-26 | 2021 MR LIAC Summer Fun Invitational |
| 100 Breaststroke | LCM | 1:17.74 | AA+0.45s to AAA·Sectionals ✓+1.75s to Futures | 2024-07-24 | 2024 Futures Championships - Austin |
| 200 Breaststroke | LCM | 2:50.24 | AA+1.45s to AAA·+0.85s to Sectionals | 2022-07-14 | 2022 MR TYR Senior Mets LC Championships |
| 100 Butterfly | LCM | 1:09.33 | A+0.14s to AA·+3.04s to Sectionals | 2023-05-14 | 2023 MR LIAC Spring Kickoff Invitationalvenue |
| 200 Butterfly | LCM | 2:19.35 | AAAA·Futures ✓+0.96s to Jr Nationals | 2021-06-12 | 2021 MR LIAC Summertime Classic |
| 200 Individual Medley | LCM | 2:32.38 | AA+2.89s to AAA·+3.99s to Sectionals | 2023-05-13 | 2023 MR LIAC Spring Kickoff Invitationalvenue |
| 400 Individual Medley | LCM | 5:23.83 | AA+4.54s to AAA·+3.34s to Sectionals | 2021-04-08 | 2021 MR LIAC Long Island Challenge |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 55.72 | flat | 400 Free Relay | 2022-10-26 | 2022 MR OB Section 11 League 1 Championship |
| 100 Freestyle | SCY | 54.62 | flying | 400 Free Relay (leg 4) | 2022-11-06 | 2022 MR OB Section XI Girls Championships |
| 50 Breaststroke | SCY | 30.59 | flying | 200 Medley Relay (leg 2) | 2022-11-06 | 2022 MR OB Section XI Girls Championships |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 17-18 · SCY
4901 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:21.64 | 790 |
| 200 BK SCY | 2:15.91 | 672 |
| 200 BR SCY | 2:25.51 | 862 |
| 200 FL SCY | 2:08.68 | 854 |
| 200 IM SCY | 2:08.89 | 862 |
| 400 IM SCY | 4:36.38 | 861 |
IMR 17-18 · SCY
4076 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:01.61 | 747 |
| 100 BK SCY | 1:01.49 | 715 |
| 100 BR SCY | 1:06.09 | 890 |
| 100 FL SCY | 57.98 | 862 |
| 200 IM SCY | 2:08.89 | 862 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:01.61
1650 Freestyle SCY 18:19.74
200 Backstroke SCY 2:15.91
100 Butterfly SCY 57.98
Front half 26.95s · back half 31.03s
200 Butterfly SCY 2:08.68
200 Individual Medley SCY 2:08.89
Front half 61.69s · back half 67.20s
200 Freestyle LCM 2:21.19
Front half 67.47s · back half 73.72s
100 Backstroke LCM 1:15.49
Front half 36.76s · back half 38.73s
200 Backstroke LCM 2:43.33
200 Breaststroke LCM 2:50.24
100 Butterfly LCM 1:09.33
Front half 31.59s · back half 37.74s
200 Butterfly LCM 2:19.35
200 Individual Medley LCM 2:32.38
Front half 73.69s · back half 78.69s
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.