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BOSTON MARATHON 2023

Kelsi Chappell

Bib: 4890•F

RI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #4142
Start → 5K
20:58 | 6:45/mi
10K· 6.21 mi
41:44
Rank: #4167 (-25)
5K → 10K
20:46 | 6:41/mi
15K· 9.32 mi
1:02:51
Rank: #4450 (-283)
10K → 15K
21:07 | 6:48/mi
20K· 12.43 mi
1:24:58
Rank: #5211 (-761)
15K → 20K
22:07 | 7:07/mi
Half· 13.11 mi
1:29:49
Rank: #5364 (-153)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:47:33
Rank: #5729 (-365)
Half → 25K
17:44 | 7:19/mi
30K· 18.64 mi
2:10:54
Rank: #5956 (-227)
25K → 30K
23:21 | 7:31/mi
20M
2:21:11
Rank: #5999 (-43)
30K → 20M
10:17 | 7:34/mi
21M
2:29:23
Rank: #6088 (-89)
20M → 21M
8:12 | 8:12/mi
35K· 21.75 mi
2:34:48
Rank: #6070 (+18)
21M → 35K
5:25 | 7:14/mi
23M
2:44:24
Rank: #6089 (-19)
35K → 23M
9:36 | 7:40/mi
24M
2:51:49
Rank: #6082 (+7)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
2:58:27
Rank: #6108 (-26)
24M → 40K
6:38 | 7:45/mi
25.2M
3:01:19
Rank: #6126 (-18)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:08:54
Rank: #6162 (-36)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:49
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:39:05
Pace7:34 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5320:586:4520:58
6:45
-
10K
6.21 mi10:43:3941:446:4320:46
6:41
-0:04
15K
9.32 mi11:04:461:02:516:4521:07
6:48
+0:07
20K
12.43 mi11:26:531:24:586:5022:07
7:07
+0:19
Half
13.11 mi11:31:441:29:496:514:51
7:07
0:00
25K
15.53 mi11:49:281:47:336:5517:44
7:19
+0:12
30K
18.64 mi12:12:492:10:547:0123:21
7:31
+0:12
20M
20.00 mi12:23:062:21:117:0410:17
7:34
+0:03
21M
21.00 mi12:31:182:29:237:078:12
8:12
+0:38
35K
21.75 mi12:36:432:34:487:075:25
7:14
-0:58
23M
23.00 mi12:46:192:44:247:099:36
7:40
+0:26
24M
24.00 mi12:53:442:51:497:107:25
7:25
-0:15
40K
24.85 mi13:00:222:58:277:116:38
7:45
+0:20
25.2M
25.20 mi13:03:143:01:197:122:52
8:19
+0:34
Finish
26.22 mi13:10:493:08:547:137:35
7:26
-0:53

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

6:41 /mi

Average Pace

7:13 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:49

48% of race

Time at Steady Pace

1:11:47

38% of race

Time at Slower Pace

27:18

14% of race

Average Pace: 7:12 /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 mi10:22:5320:586:4520:58
6:45
#4142
10K
6.21 mi10:43:3941:446:4320:46
6:41
#4167
15K
9.32 mi11:04:461:02:516:4521:07
6:48
#4450
20K
12.43 mi11:26:531:24:586:5022:07
7:07
#5211
Half
13.11 mi11:31:441:29:496:514:51
7:07
#5364
25K
15.53 mi11:49:281:47:336:5517:44
7:19
#5729
30K
18.64 mi12:12:492:10:547:0123:21
7:31
#5956
20M
20.00 mi12:23:062:21:117:0410:17
7:34
#5999
21M
21.00 mi12:31:182:29:237:078:12
8:12
#6088
35K
21.75 mi12:36:432:34:487:075:25
7:14
#6070
23M
23.00 mi12:46:192:44:247:099:36
7:40
#6089
24M
24.00 mi12:53:442:51:497:107:25
7:25
#6082
40K
24.85 mi13:00:222:58:277:116:38
7:45
#6108
25.2M
25.20 mi13:03:143:01:197:122:52
8:19
#6126
Finish
26.22 mi13:10:493:08:547:137:35
7:26
#6162
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi41422562565112(Top 19%)378(Top 3%)378(Top 8%)
10K6.21 mi3.10 mi4167-252562564212(Top 16%)261(Top 2%)261(Top 5%)
15K9.32 mi3.11 mi4450-283285-29285-295112(Top 19%)378(Top 3%)378(Top 8%)
20K12.43 mi3.11 mi5211-761375-90375-906655(Top 25%)696(Top 6%)696(Top 14%)
Half13.11 mi0.68 mi5364-153395-20395-207265(Top 27%)831(Top 7%)831(Top 17%)
25K15.53 mi2.42 mi5729-365458-63458-637380(Top 28%)965(Top 8%)965(Top 20%)
30K18.64 mi3.11 mi5956-227518-60518-607334(Top 28%)1046(Top 9%)1046(Top 21%)
20M20.00 mi1.36 mi5999-43544-26544-267292(Top 27%)1130(Top 10%)1130(Top 23%)
21M21.00 mi1.00 mi6088-89575-31575-318628(Top 32%)1757(Top 15%)1757(Top 36%)
35K21.75 mi0.75 mi6070+18578-3578-36797(Top 26%)1015(Top 9%)1015(Top 21%)
23M23.00 mi1.25 mi6089-19591-13591-137557(Top 28%)1390(Top 12%)1390(Top 28%)
24M24.00 mi1.00 mi6082+7604-13604-137176(Top 27%)1346(Top 12%)1346(Top 28%)
40K24.85 mi0.85 mi6108-26618-14618-148400(Top 32%)1890(Top 17%)1890(Top 39%)
25.2M25.20 mi0.35 mi6126-18631-13631-138415(Top 32%)1966(Top 17%)1966(Top 40%)
Finish26.22 mi1.02 mi6162-36655-24655-248096(Top 30%)1860(Top 16%)1860(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5112

Females

378

F18-39

378

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4212

Females

261

F18-39

261

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5112

Females

378

F18-39

378

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6655

Females

696

F18-39

696

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7265

Females

831

F18-39

831

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7380

Females

965

F18-39

965

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7334

Females

1046

F18-39

1046

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7292

Females

1130

F18-39

1130

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8628

Females

1757

F18-39

1757

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6797

Females

1015

F18-39

1015

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7557

Females

1390

F18-39

1390

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7176

Females

1346

F18-39

1346

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8400

Females

1890

F18-39

1890

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8415

Females

1966

F18-39

1966

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8096

Females

1860

F18-39

1860

Passing Analysis

Category:
Athletes Passed
682
Passed By
2702
Net Change
-2020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4142
5K → 10K209234-25#4142#4167
10K → 15K57340-283#4167#4450
15K → 20K10771-761#4450#5211
20K → Half2155-153#5211#5364
Half → 25K19384-365#5364#5729
25K → 30K63290-227#5729#5956
30K → 20M4588-43#5956#5999
20M → 21M27116-89#5999#6088
21M → 35K4123+18#6088#6070
35K → 23M6281-19#6070#6089
23M → 24M5649+7#6089#6082
24M → 40K4066-26#6082#6108
40K → 25.2M1937-18#6108#6126
25.2M → Finish3268-36#6126#6162
TOTALS6822702-2020
📊

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