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BOSTON MARATHON 2023

Kelsey Shea

Bib: 24957•F

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
12:47/mi
39:42
↑ 97↓ 3451.5%
10K· 6.21 mi
12:47/mi
1:19:23
↑ 79↓ 1380.4%
15K· 9.32 mi
12:46/mi
1:59:03
↑ 67↓ 78
20K· 12.43 mi
13:14/mi
2:40:10
↑ 106↓ 860.1%
Half· 13.11 mi
13:10/mi
2:49:09
↑ 19↓ 370.5%
25K· 15.53 mi
13:25/mi
3:21:42
↑ 66↓ 880.2%
30K· 18.64 mi
13:48/mi
4:04:35
↑ 181↓ 1480.2%
20M
14:02/mi
4:23:39
↑ 64↓ 500.2%
21M
15:17/mi
4:38:56
↑ 106↓ 241.6%
35K· 21.75 mi
13:03/mi
4:48:42
↑ 17↓ 861.7%
23M
13:57/mi
5:06:10
↑ 23↓ 630.6%
24M
15:59/mi
5:22:09
↓ 821.3%
40K· 24.85 mi
14:42/mi
5:34:43
↓ 200.3%
25.2M
17:27/mi
5:40:44
↑ 13↓ 160.2%
Finish· 26.22 mi
13:47/mi
5:54:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:49:09
Pace12:54 /mi
2nd Half
Distance13.11 mi
Time3:05:38
Pace14:10 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3039:4212:4739:42
12:47
-
10K
6.21 mi12:36:111:19:2312:4739:42
12:47
0:00
15K
9.32 mi13:15:511:59:0312:4639:40
12:46
-0:01
20K
12.43 mi13:56:582:40:1012:5341:07
13:14
+0:28
Half
13.11 mi14:05:572:49:0912:548:59
13:10
-0:04
25K
15.53 mi14:38:303:21:4212:5932:33
13:25
+0:15
30K
18.64 mi15:21:234:04:3513:0742:53
13:48
+0:23
20M
20.00 mi15:40:274:23:3913:1119:04
14:02
+0:14
21M
21.00 mi15:55:444:38:5613:1715:17
15:17
+1:15
35K
21.75 mi16:05:304:48:4213:169:46
13:03
-2:14
23M
23.00 mi16:22:585:06:1013:1917:28
13:57
+0:54
24M
24.00 mi16:38:575:22:0913:2515:59
15:59
+2:02
40K
24.85 mi16:51:315:34:4313:2812:34
14:42
-1:17
25.2M
25.20 mi16:57:325:40:4413:316:01
17:27
+2:45
Finish
26.22 mi17:11:355:54:4713:3214:03
13:47
-3:40

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

12:46 /mi

Average Pace

13:32 /mi

Slowest Pace

17:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:49

36% of race

Time at Steady Pace

2:56:07

50% of race

Time at Slower Pace

49:51

14% of race

Average Pace: 13:32 /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 mi11:56:3039:4212:4739:42
12:47
#26568
10K
6.21 mi12:36:111:19:2312:4739:42
12:47
#26560
15K
9.32 mi13:15:511:59:0312:4639:40
12:46
#26550
20K
12.43 mi13:56:582:40:1012:5341:07
13:14
#26526
Half
13.11 mi14:05:572:49:0912:548:59
13:10
#26528
25K
15.53 mi14:38:303:21:4212:5932:33
13:25
#26489
30K
18.64 mi15:21:234:04:3513:0742:53
13:48
#26454
20M
20.00 mi15:40:274:23:3913:1119:04
14:02
#26430
21M
21.00 mi15:55:444:38:5613:1715:17
15:17
#26415
35K
21.75 mi16:05:304:48:4213:169:46
13:03
#26394
23M
23.00 mi16:22:585:06:1013:1917:28
13:57
#26383
24M
24.00 mi16:38:575:22:0913:2515:59
15:59
#26419
40K
24.85 mi16:51:315:34:4313:2812:34
14:42
#26415
25.2M
25.20 mi16:57:325:40:4413:316:01
17:27
#26428
Finish
26.22 mi17:11:355:54:4713:3214:03
13:47
#26435
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26568113981139826425(Top 99%)11313(Top 99%)11313(Top 232%)
10K6.21 mi3.10 mi26560+811399-111399-126527(Top 100%)11380(Top 100%)11380(Top 233%)
15K9.32 mi3.11 mi26550+1011394+511394+526425(Top 99%)11313(Top 99%)11313(Top 232%)
20K12.43 mi3.11 mi26526+2411382+1211382+1226340(Top 99%)11265(Top 99%)11265(Top 231%)
Half13.11 mi0.68 mi26528-211384-211384-226393(Top 99%)11300(Top 99%)11300(Top 231%)
25K15.53 mi2.42 mi26489+3911354+3011354+3026095(Top 98%)11128(Top 97%)11128(Top 228%)
30K18.64 mi3.11 mi26454+3511324+3011324+3025923(Top 97%)11065(Top 97%)11065(Top 227%)
20M20.00 mi1.36 mi26430+2411310+1411310+1425845(Top 97%)11044(Top 97%)11044(Top 226%)
21M21.00 mi1.00 mi26415+1511302+811302+825896(Top 97%)11050(Top 97%)11050(Top 226%)
35K21.75 mi0.75 mi26394+2111291+1111291+1125611(Top 96%)10952(Top 96%)10952(Top 224%)
23M23.00 mi1.25 mi26383+1111284+711284+725798(Top 97%)11047(Top 97%)11047(Top 226%)
24M24.00 mi1.00 mi26419-3611308-2411308-2426526(Top 100%)11387(Top 100%)11387(Top 233%)
40K24.85 mi0.85 mi26415+411309-111309-126029(Top 98%)11189(Top 98%)11189(Top 229%)
25.2M25.20 mi0.35 mi26428-1311315-611315-626444(Top 99%)11359(Top 99%)11359(Top 233%)
Finish26.22 mi1.02 mi26435-711322-711322-726302(Top 99%)11310(Top 99%)11310(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26425

Females

11313

F18-39

11313

5K→10K

3.1 - 6.2 mi

Top 100%
×5story building
+79ft-138ft

Overall

26527

Females

11380

F18-39

11380

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26425

Females

11313

F18-39

11313

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26340

Females

11265

F18-39

11265

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26393

Females

11300

F18-39

11300

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26095

Females

11128

F18-39

11128

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25923

Females

11065

F18-39

11065

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25845

Females

11044

F18-39

11044

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25896

Females

11050

F18-39

11050

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25611

Females

10952

F18-39

10952

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25798

Females

11047

F18-39

11047

23M→24M

23.0 - 24.0 mi

Top 100%
×6story building
+12ft-82ft

Overall

26526

Females

11387

F18-39

11387

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26029

Females

11189

F18-39

11189

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26444

Females

11359

F18-39

11359

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

26302

Females

11310

F18-39

11310

Passing Analysis

Category:
Athletes Passed
258
Passed By
125
Net Change
+133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26568
5K → 10K1810+8#26568#26560
10K → 15K177+10#26560#26550
15K → 20K295+24#26550#26526
20K → Half57-2#26526#26528
Half → 25K401+39#26528#26489
25K → 30K4712+35#26489#26454
30K → 20M262+24#26454#26430
20M → 21M205+15#26430#26415
21M → 35K210+21#26415#26394
35K → 23M176+11#26394#26383
23M → 24M137-36#26383#26419
24M → 40K128+4#26419#26415
40K → 25.2M013-13#26415#26428
25.2M → Finish512-7#26428#26435
TOTALS258125+133
📊

Passing Visuals

Category:
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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