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BOSTON MARATHON 2023

Kelsey Begley

Bib: 13441•F

NC

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

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #11703
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
47:53
Rank: #11881 (-178)
5K → 10K
23:53 | 7:41/mi
15K· 9.32 mi
1:12:26
Rank: #12430 (-549)
10K → 15K
24:33 | 7:54/mi
20K· 12.43 mi
1:38:10
Rank: #13318 (-888)
15K → 20K
25:44 | 8:17/mi
Half· 13.11 mi
1:43:47
Rank: #13457 (-139)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:04:55
Rank: #14217 (-760)
Half → 25K
21:08 | 8:43/mi
30K· 18.64 mi
2:34:19
Rank: #15326 (-1109)
25K → 30K
29:24 | 9:28/mi
20M
2:49:00
Rank: #16218 (-892)
30K → 20M
14:41 | 10:48/mi
21M
3:00:53
Rank: #16888 (-670)
20M → 21M
11:53 | 11:53/mi
35K· 21.75 mi
3:08:20
Rank: #17117 (-229)
21M → 35K
7:27 | 9:57/mi
23M
3:21:46
Rank: #17599 (-482)
35K → 23M
13:26 | 10:44/mi
24M
3:31:54
Rank: #17885 (-286)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:41:09
Rank: #18141 (-256)
24M → 40K
9:15 | 10:49/mi
25.2M
3:45:02
Rank: #18222 (-81)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
3:54:46
Rank: #18330 (-108)
25.2M → Finish
9:44 | 9:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time2:10:59
Pace10:00 /mi
📊Positive Split: 26.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2924:007:4324:00
7:43
-
10K
6.21 mi11:16:2247:537:4223:53
7:41
-0:02
15K
9.32 mi11:40:551:12:267:4624:33
7:54
+0:13
20K
12.43 mi12:06:391:38:107:5425:44
8:17
+0:23
Half
13.11 mi12:12:161:43:477:555:37
8:14
-0:03
25K
15.53 mi12:33:242:04:558:0221:08
8:43
+0:29
30K
18.64 mi13:02:482:34:198:1729:24
9:28
+0:45
20M
20.00 mi13:17:292:49:008:2714:41
10:48
+1:20
21M
21.00 mi13:29:223:00:538:3711:53
11:53
+1:05
35K
21.75 mi13:36:493:08:208:407:27
9:57
-1:56
23M
23.00 mi13:50:153:21:468:4613:26
10:44
+0:47
24M
24.00 mi14:00:233:31:548:5010:08
10:08
-0:36
40K
24.85 mi14:09:383:41:098:549:15
10:49
+0:41
25.2M
25.20 mi14:13:313:45:028:563:53
11:16
+0:27
Finish
26.22 mi14:23:153:54:468:589:44
9:33
-1:43

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

7:41 /mi

Average Pace

8:58 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:55

53% of race

Time at Steady Pace

56:43

24% of race

Time at Slower Pace

53:08

23% of race

Average Pace: 8:57 /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 mi10:52:2924:007:4324:00
7:43
#11703
10K
6.21 mi11:16:2247:537:4223:53
7:41
#11881
15K
9.32 mi11:40:551:12:267:4624:33
7:54
#12430
20K
12.43 mi12:06:391:38:107:5425:44
8:17
#13318
Half
13.11 mi12:12:161:43:477:555:37
8:14
#13457
25K
15.53 mi12:33:242:04:558:0221:08
8:43
#14217
30K
18.64 mi13:02:482:34:198:1729:24
9:28
#15326
20M
20.00 mi13:17:292:49:008:2714:41
10:48
#16218
21M
21.00 mi13:29:223:00:538:3711:53
11:53
#16888
35K
21.75 mi13:36:493:08:208:407:27
9:57
#17117
23M
23.00 mi13:50:153:21:468:4613:26
10:44
#17599
24M
24.00 mi14:00:233:31:548:5010:08
10:08
#17885
40K
24.85 mi14:09:383:41:098:549:15
10:49
#18141
25.2M
25.20 mi14:13:313:45:028:563:53
11:16
#18222
Finish
26.22 mi14:23:153:54:468:589:44
9:33
#18330
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117032701270113589(Top 51%)3836(Top 34%)3836(Top 79%)
10K6.21 mi3.10 mi11881-1782809-1082809-10812144(Top 46%)2957(Top 26%)2957(Top 61%)
15K9.32 mi3.11 mi12430-5493137-3283137-32813589(Top 51%)3836(Top 34%)3836(Top 79%)
20K12.43 mi3.11 mi13318-8883673-5363673-53615520(Top 58%)5047(Top 44%)5047(Top 103%)
Half13.11 mi0.68 mi13457-1393760-873760-8716122(Top 61%)5390(Top 47%)5390(Top 110%)
25K15.53 mi2.42 mi14217-7604242-4824242-48217479(Top 66%)6272(Top 55%)6272(Top 128%)
30K18.64 mi3.11 mi15326-11094963-7214963-72119288(Top 72%)7350(Top 64%)7350(Top 150%)
20M20.00 mi1.36 mi16218-8925529-5665529-56622357(Top 84%)9168(Top 80%)9168(Top 188%)
21M21.00 mi1.00 mi16888-6705920-3915920-39122560(Top 85%)9310(Top 82%)9310(Top 191%)
35K21.75 mi0.75 mi17117-2296065-1456065-14521155(Top 79%)8569(Top 75%)8569(Top 175%)
23M23.00 mi1.25 mi17599-4826377-3126377-31221834(Top 82%)8982(Top 79%)8982(Top 184%)
24M24.00 mi1.00 mi17885-2866559-1826559-18221152(Top 79%)8638(Top 76%)8638(Top 177%)
40K24.85 mi0.85 mi18141-2566721-1626721-16221972(Top 83%)9132(Top 80%)9132(Top 187%)
25.2M25.20 mi0.35 mi18222-816772-516772-5121051(Top 79%)8610(Top 75%)8610(Top 176%)
Finish26.22 mi1.02 mi18330-1086839-676839-6720305(Top 76%)8181(Top 72%)8181(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13589

Females

3836

F18-39

3836

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12144

Females

2957

F18-39

2957

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13589

Females

3836

F18-39

3836

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15520

Females

5047

F18-39

5047

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16122

Females

5390

F18-39

5390

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17479

Females

6272

F18-39

6272

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19288

Females

7350

F18-39

7350

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22357

Females

9168

F18-39

9168

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22560

Females

9310

F18-39

9310

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

21155

Females

8569

F18-39

8569

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21834

Females

8982

F18-39

8982

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21152

Females

8638

F18-39

8638

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

21972

Females

9132

F18-39

9132

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21051

Females

8610

F18-39

8610

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20305

Females

8181

F18-39

8181

Passing Analysis

Category:
Athletes Passed
470
Passed By
7097
Net Change
-6627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11703
5K → 10K227405-178#11703#11881
10K → 15K56605-549#11881#12430
15K → 20K36924-888#12430#13318
20K → Half8147-139#13318#13457
Half → 25K27787-760#13457#14217
25K → 30K251134-1109#14217#15326
30K → 20M7899-892#15326#16218
20M → 21M4674-670#16218#16888
21M → 35K12241-229#16888#17117
35K → 23M18500-482#17117#17599
23M → 24M14300-286#17599#17885
24M → 40K11267-256#17885#18141
40K → 25.2M990-81#18141#18222
25.2M → Finish16124-108#18222#18330
TOTALS4707097-6627
📊

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