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BOSTON MARATHON 2023

Charlotte Kowalk

Bib: 8494•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #2351
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
40:42
Rank: #2810 (-459)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:28
Rank: #3178 (-368)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:22:29
Rank: #3360 (-182)
15K → 20K
21:01 | 6:46/mi
Half· 13.11 mi
1:27:05
Rank: #3419 (-59)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:14
Rank: #3870 (-451)
Half → 25K
17:09 | 7:04/mi
30K· 18.64 mi
2:05:38
Rank: #3775 (+95)
25K → 30K
21:24 | 6:53/mi
20M
2:15:15
Rank: #3798 (-23)
30K → 20M
9:37 | 7:05/mi
21M
2:22:41
Rank: #3813 (-15)
20M → 21M
7:26 | 7:26/mi
35K· 21.75 mi
2:27:50
Rank: #3859 (-46)
21M → 35K
5:09 | 6:53/mi
23M
2:36:44
Rank: #3883 (-24)
35K → 23M
8:54 | 7:06/mi
24M
2:43:42
Rank: #3927 (-44)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:49:55
Rank: #3997 (-70)
24M → 40K
6:13 | 7:16/mi
25.2M
2:52:33
Rank: #4009 (-12)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:59:05
Rank: #3884 (+125)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:05
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:32:00
Pace7:01 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:2420:146:3120:14
6:31
-
10K
6.21 mi11:05:5240:426:3320:28
6:35
+0:04
15K
9.32 mi11:26:381:01:286:3620:46
6:41
+0:06
20K
12.43 mi11:47:391:22:296:3821:01
6:46
+0:05
Half
13.11 mi11:52:151:27:056:394:36
6:45
-0:01
25K
15.53 mi12:09:241:44:146:4317:09
7:04
+0:19
30K
18.64 mi12:30:482:05:386:4421:24
6:53
-0:11
20M
20.00 mi12:40:252:15:156:469:37
7:05
+0:12
21M
21.00 mi12:47:512:22:416:487:26
7:26
+0:21
35K
21.75 mi12:53:002:27:506:485:09
6:53
-0:33
23M
23.00 mi13:01:542:36:446:498:54
7:06
+0:13
24M
24.00 mi13:08:522:43:426:496:58
6:58
-0:08
40K
24.85 mi13:15:052:49:556:506:13
7:16
+0:18
25.2M
25.20 mi13:17:432:52:336:512:38
7:38
+0:22
Finish
26.22 mi13:24:152:59:056:506:32
6:25
-1:13

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:25 /mi

Average Pace

6:50 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:08

71% of race

Time at Steady Pace

49:19

28% of race

Time at Slower Pace

2:38

1% of race

Average Pace: 6:50 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:45:2420:146:3120:14
6:31
#2351
10K
6.21 mi11:05:5240:426:3320:28
6:35
#2810
15K
9.32 mi11:26:381:01:286:3620:46
6:41
#3178
20K
12.43 mi11:47:391:22:296:3821:01
6:46
#3360
Half
13.11 mi11:52:151:27:056:394:36
6:45
#3419
25K
15.53 mi12:09:241:44:146:4317:09
7:04
#3870
30K
18.64 mi12:30:482:05:386:4421:24
6:53
#3775
20M
20.00 mi12:40:252:15:156:469:37
7:05
#3798
21M
21.00 mi12:47:512:22:416:487:26
7:26
#3813
35K
21.75 mi12:53:002:27:506:485:09
6:53
#3859
23M
23.00 mi13:01:542:36:446:498:54
7:06
#3883
24M
24.00 mi13:08:522:43:426:496:58
6:58
#3927
40K
24.85 mi13:15:052:49:556:506:13
7:16
#3997
25.2M
25.20 mi13:17:432:52:336:512:38
7:38
#4009
Finish
26.22 mi13:24:152:59:056:506:32
6:25
#3884
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi23511081084000(Top 15%)236(Top 2%)236(Top 5%)
10K6.21 mi3.10 mi2810-459128-20128-203425(Top 13%)172(Top 2%)172(Top 4%)
15K9.32 mi3.11 mi3178-368150-22150-224000(Top 15%)236(Top 2%)236(Top 5%)
20K12.43 mi3.11 mi3360-182168-18168-184143(Top 16%)253(Top 2%)253(Top 5%)
Half13.11 mi0.68 mi3419-59171-3171-34844(Top 18%)338(Top 3%)338(Top 7%)
25K15.53 mi2.42 mi3870-451216-45216-455991(Top 23%)544(Top 5%)544(Top 11%)
30K18.64 mi3.11 mi3775+95209+7209+73591(Top 13%)217(Top 2%)217(Top 4%)
20M20.00 mi1.36 mi3798-23213-4213-44500(Top 17%)359(Top 3%)359(Top 7%)
21M21.00 mi1.00 mi3813-15219-6219-64308(Top 16%)359(Top 3%)359(Top 7%)
35K21.75 mi0.75 mi3859-46225-6225-64716(Top 18%)433(Top 4%)433(Top 9%)
23M23.00 mi1.25 mi3883-24227-2227-24364(Top 16%)381(Top 3%)381(Top 8%)
24M24.00 mi1.00 mi3927-44242-15242-154526(Top 17%)437(Top 4%)437(Top 9%)
40K24.85 mi0.85 mi3997-70252-10252-105278(Top 20%)737(Top 6%)737(Top 15%)
25.2M25.20 mi0.35 mi4009-12253-1253-14616(Top 17%)588(Top 5%)588(Top 12%)
Finish26.22 mi1.02 mi3884+125239+14239+142091(Top 8%)149(Top 1%)149(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4000

Females

236

F18-39

236

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3425

Females

172

F18-39

172

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4000

Females

236

F18-39

236

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4143

Females

253

F18-39

253

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4844

Females

338

F18-39

338

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

5991

Females

544

F18-39

544

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3591

Females

217

F18-39

217

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4500

Females

359

F18-39

359

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4308

Females

359

F18-39

359

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4716

Females

433

F18-39

433

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4364

Females

381

F18-39

381

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4526

Females

437

F18-39

437

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5278

Females

737

F18-39

737

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4616

Females

588

F18-39

588

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2091

Females

149

F18-39

149

Passing Analysis

Category:
Athletes Passed
656
Passed By
2189
Net Change
-1533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2351
5K → 10K25484-459#2351#2810
10K → 15K13381-368#2810#3178
15K → 20K43225-182#3178#3360
20K → Half261-59#3360#3419
Half → 25K19470-451#3419#3870
25K → 30K15964+95#3870#3775
30K → 20M5275-23#3775#3798
20M → 21M5772-15#3798#3813
21M → 35K1763-46#3813#3859
35K → 23M4569-24#3859#3883
23M → 24M4488-44#3883#3927
24M → 40K2898-70#3927#3997
40K → 25.2M1931-12#3997#4009
25.2M → Finish1338+125#4009#3884
TOTALS6562189-1533
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing