swimCharlotte Duijser
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 18.62 | 2017-12-10 | CWW 2017 Winter Breakout Meetslow pool | |
| 50 Freestyle | SCY | 25.87 | AA+0.78s to AAA·+0.58s to Sectionals | 2024-03-09 | Lake Erie Age Group Championshipsfast pool |
| 100 Freestyle | SCY | 53.75 | AAA+1.76s to AAAA·Sectionals ✓+1.86s to Futures | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 200 Freestyle | SCY | 1:53.83 | AAA+1.74s to AAAA·Sectionals ✓+1.54s to Futures | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 500 Freestyle | SCY | 4:58.71 | AAAA·Futures ✓+5.12s to Winter JNs | 2024-11-23 | The 2024 Mark J. Braun Fall Classicvenue |
| 1000 Freestyle | SCY | 10:08.70 | AAAA·Winter JNs ✓+4.01s to Jr Nationals | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 1650 Freestyle | SCY | 16:46.21 | AAAA·Jr Nationals ✓+8.22s to Nationals | 2025-11-21 | 2024 Speedo Grand Chalenge |
| 50 Backstroke | SCY | 34.47 | B+1.68s to BB·+7.18s to Sectionals | 2022-11-06 | Kelly Kinney Memorial -Splash Out Cancer 2022venue |
| 100 Backstroke | SCY | 1:02.20 | A+0.61s to AA·+1.71s to Sectionals | 2025-03-02 | 2025 Lake Erie Winter Senior Championshipsfast pool |
| 200 Backstroke | SCY | 2:09.27 | AA+1.58s to AAA·Sectionals ✓+5.08s to Futures | 2026-03-06 | 2026 OH Tim Myers SC Senior Champsvenue |
| 25 Breaststroke | SCY | 24.68 | 2017-11-12 | 2017 Solon Stars Fall Breakoutslow pool | |
| 50 Breaststroke | SCY | 37.52 | BB+2.13s to A·+6.83s to Sectionals | 2020-02-29 | Lake Erie Junior Olympic Championship Meetvenue |
| 100 Breaststroke | SCY | 1:10.03 | AA+2.04s to AAA·+0.54s to Sectionals | 2025-03-02 | 2025 Lake Erie Winter Senior Championshipsfast pool |
| 200 Breaststroke | SCY | 2:29.91 | AA+2.62s to AAA·Sectionals ✓+7.22s to Futures | 2024-11-24 | The 2024 Mark J. Braun Fall Classicvenue |
| 25 Butterfly | SCY | 24.47 | 2017-12-10 | CWW 2017 Winter Breakout Meetslow pool | |
| 50 Butterfly | SCY | 30.74 | BB+0.65s to A·+4.05s to Sectionals | 2022-11-05 | Kelly Kinney Memorial -Splash Out Cancer 2022venue |
| 100 Butterfly | SCY | 1:02.30 | A+0.91s to AA·+2.71s to Sectionals | 2025-03-01 | 2025 Lake Erie Winter Senior Championshipsfast pool |
| 100 Individual Medley | SCY | 1:16.36 | 2020-02-29 | Lake Erie Junior Olympic Championship Meetvenue | |
| 200 Individual Medley | SCY | 2:11.36 | AAA+5.87s to AAAA·Sectionals ✓+4.97s to Futures | 2024-11-23 | The 2024 Mark J. Braun Fall Classicvenue |
| 400 Individual Medley | SCY | 4:37.44 | AAA+8.75s to AAAA·Sectionals ✓+6.75s to Futures | 2026-03-07 | 2026 OH Tim Myers SC Senior Champsvenue |
| 50 Freestyle | LCM | 28.49 | AAA+1.20s to AAAA·Sectionals ✓+1.10s to Futures | 2025-06-28 | 2025 CW Eric Namesnik Memorial Openvenue |
| 100 Freestyle | LCM | 1:01.15 | AAA+2.26s to AAAA·Sectionals ✓+1.86s to Futures | 2025-06-29 | 2025 CW Eric Namesnik Memorial Openvenue |
| 200 Freestyle | LCM | 2:02.49 | AAAA·US Open ✓ | 2023-08-03 | 2023 Central Zone 14 & U Championship - IN |
| 400 Freestyle | LCM | 4:29.47 | AAA+0.18s to AAAA·Sectionals ✓+0.68s to Futures | 2025-06-28 | 2025 CW Eric Namesnik Memorial Openvenue |
| 800 Freestyle | LCM | 9:06.87 | AAAA·Futures ✓+0.08s to Jr Nationals | 2025-06-29 | 2025 CW Eric Namesnik Memorial Openvenue |
| 1500 Freestyle | LCM | 17:29.50 | AAAA·Futures ✓+2.71s to Jr Nationals | 2025-08-03 | 2025 Speedo Junior National Championshipsvenue |
| 50 Backstroke | LCM | 36.99 | BB+1.60s to A·+5.50s to Sectionals | 2023-07-22 | 2023 LE Summer Age Group Champsfast pool |
| 100 Backstroke | LCM | 1:16.65 | BB+1.66s to A·+6.16s to Sectionals | 2024-05-18 | 2024 Robert F. Busbey Invitationalvenue |
| 200 Backstroke | LCM | 2:39.09 | A+4.80s to AA·+7.70s to Sectionals | 2024-05-19 | 2024 Robert F. Busbey Invitationalvenue |
| 50 Breaststroke | LCM | 41.30 | BB+1.11s to A·+5.71s to Sectionals | 2023-07-22 | 2023 LE Summer Age Group Champsfast pool |
| 100 Breaststroke | LCM | 1:21.60 | A+0.11s to AA·+1.61s to Sectionals | 2024-06-28 | 2024 CW Eric Namesnik Memorial Openvenue |
| 200 Breaststroke | LCM | 2:55.92 | A+1.13s to AA·+3.13s to Sectionals | 2024-06-29 | 2024 CW Eric Namesnik Memorial Openvenue |
| 50 Butterfly | LCM | 31.24 | AA+0.45s to AAA·+0.95s to Sectionals | 2025-08-02 | 2025 Speedo Junior National Championshipsvenue |
| 100 Butterfly | LCM | 1:12.07 | A+2.78s to AA·+3.98s to Sectionals | 2024-06-15 | Holtrey Summer Classicvenue |
| 200 Butterfly | LCM | 2:45.99 | BB+4.70s to A·+14.00s to Sectionals | 2023-07-23 | 2023 LE Summer Age Group Champsfast pool |
| 200 Individual Medley | LCM | 2:27.74 | AAA+3.95s to AAAA·Sectionals ✓+1.55s to Futures | 2026-06-27 | 2026 Eric Namesnik Memorial Invitevenue |
| 400 Individual Medley | LCM | 5:12.60 | AAA+6.61s to AAAA·Sectionals ✓+5.31s to Futures | 2026-06-26 | 2026 Eric Namesnik Memorial Invitevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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.
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.12 | flat | 200 Free Relay | 2023-10-22 | 2023 Stevie Grieshammer HS Preview/AG Meet |
| 50 Freestyle | SCY | 25.50 | flying | 200 Free Relay (leg 4) | 2024-03-08 | Lake Erie Age Group Championships |
| 50 Freestyle | SCY | 25.18 | flying | 200 Medley Relay (leg 4) | 2024-03-08 | Lake Erie Age Group Championships |
| 100 Freestyle | SCY | 54.43 | flat | 400 Free Relay | 2024-11-23 | The 2024 Mark J. Braun Fall Classic |
| 100 Freestyle | SCY | 52.79 | flying | 400 Free Relay (leg 4) | 2023-11-19 | The 2023 Mark J. Braun Fall Classic |
| 100 Freestyle | SCY | 53.50 | flying | 400 Medley Relay (leg 4) | 2026-03-06 | 2026 OH Tim Myers SC Senior Champs |
| 200 Freestyle | SCY | 1:55.13 | flat | 800 Free Relay | 2024-11-22 | The 2024 Mark J. Braun Fall Classic |
| 200 Freestyle | SCY | 1:55.17 | flying | 800 Free Relay (leg 2) | 2023-11-17 | The 2023 Mark J. Braun Fall Classic |
| 50 Backstroke | SCY | 31.68 | flat | 200 Medley Relay | 2024-10-20 | 2024 Stevie Grieshammer HS Preview/AG Meet |
| 50 Breaststroke | SCY | 28.54 | flying | 200 Medley Relay (leg 2) | 2020-01-18 | 2020 Jim Scullion Age Group Showdown |
| 50 Freestyle | LCM | 29.46 | flat | 200 Free Relay | 2023-07-21 | 2023 LE Summer Age Group Champs |
| 50 Freestyle | LCM | 27.94 | flying | 200 Medley Relay (leg 4) | 2025-08-01 | 2025 Speedo Junior National Championships |
| 50 Freestyle | LCM | 29.31 | flying | 200 Free Relay (leg 4) | 2026-07-18 | 2026 Central Zone East Summer Speedo Sectiona |
| 100 Freestyle | LCM | 1:03.23 | flat | 400 Free Relay | 2024-06-15 | Holtrey Summer Classic |
| 100 Freestyle | LCM | 1:01.07 | flying | 400 Medley Relay (leg 4) | 2025-08-03 | 2025 Speedo Junior National Championships |
| 100 Freestyle | LCM | 1:02.43 | flying | 400 Free Relay (leg 4) | 2022-08-04 | 2025 Central Zone 14 & Under Championship Mee |
| 200 Freestyle | LCM | 2:11.41 | flying | 800 Free Relay (leg 4) | 2026-07-16 | 2026 Central Zone East Summer Speedo Sectiona |
| 50 Breaststroke | LCM | 44.67 | flying | 200 Medley Relay (leg 2) | 2019-08-03 | 2019 WI Central Zone 14 & U Championship |
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 15-16 · LCM
4831 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:29.47 | 966 |
| 200 BK LCM | 2:39.09 | 682 |
| 200 BR LCM | 2:55.92 | 743 |
| 200 FL LCM | 2:45.99 | 611 |
| 200 IM LCM | 2:27.74 | 914 |
| 400 IM LCM | 5:12.60 | 915 |
IMR 15-16 · LCM
4051 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:02.49 | 1100 |
| 100 BK LCM | 1:16.65 | 615 |
| 100 BR LCM | 1:21.60 | 745 |
| 100 FL LCM | 1:12.07 | 677 |
| 200 IM LCM | 2:27.74 | 914 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
500 Freestyle SCY 4:58.71
Front half 145.94s · back half 152.77s
100 Backstroke SCY 1:02.20
Front half 30.59s · back half 31.61s
200 Backstroke SCY 2:09.27
Front half 62.87s · back half 66.40s
100 Breaststroke SCY 1:10.03
Front half 33.33s · back half 36.70s
200 Breaststroke SCY 2:29.91
Front half 72.46s · back half 77.45s
100 Butterfly SCY 1:02.30
Front half 29.14s · back half 33.16s
100 Individual Medley SCY 1:16.36
Front half 36.31s · back half 40.05s
200 Individual Medley SCY 2:11.36
Front half 62.24s · back half 69.12s
400 Individual Medley SCY 4:37.44
Front half 132.36s · back half 145.08s
100 Freestyle LCM 1:01.15
Front half 29.83s · back half 31.32s
200 Freestyle LCM 2:02.49
400 Freestyle LCM 4:29.47
Front half 131.06s · back half 138.41s
800 Freestyle LCM 9:06.87
Front half 270.66s · back half 276.21s
1500 Freestyle LCM 17:29.50 RT 0.71s
Front half 520.55s · back half 528.95s
100 Backstroke LCM 1:16.65
Front half 37.01s · back half 39.64s
200 Backstroke LCM 2:39.09
Front half 78.77s · back half 80.32s
100 Breaststroke LCM 1:21.60
Front half 38.79s · back half 42.81s
200 Breaststroke LCM 2:55.92
Front half 82.77s · back half 93.15s
100 Butterfly LCM 1:12.07
Front half 33.45s · back half 38.62s
200 Butterfly LCM 2:45.99
Front half 79.43s · back half 86.56s
200 Individual Medley LCM 2:27.74
Front half 68.80s · back half 78.94s
400 Individual Medley LCM 5:12.60
Front half 150.68s · back half 161.92s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
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.