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BOSTON MARATHON 2024

Collin Sepulveda

Bib: 1208•M

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Overall
#0 / 25550
Top 19%
Gender (Male)
#0 / 14578
Top 29%
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:30
Rank: #276
Start → 5K
17:30 | 5:38/mi
10K· 6.21 mi
35:45
Rank: #409 (-133)
5K → 10K
18:15 | 5:52/mi
15K· 9.32 mi
56:31
Rank: #1007 (-598)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:20:41
Rank: #2647 (-1640)
15K → 20K
24:10 | 7:47/mi
Half· 13.11 mi
1:24:55
Rank: #2556 (+91)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:43:47
Rank: #3518 (-962)
Half → 25K
18:52 | 7:47/mi
30K· 18.64 mi
2:08:16
Rank: #4288 (-770)
25K → 30K
24:29 | 7:53/mi
20M
2:21:17
Rank: #5037 (-749)
30K → 20M
13:01 | 9:35/mi
21M
2:30:08
Rank: #5119 (-82)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
2:36:53
Rank: #5339 (-220)
21M → 35K
6:45 | 9:01/mi
23M
2:47:16
Rank: #5352 (-13)
35K → 23M
10:23 | 8:18/mi
24M
2:53:55
Rank: #5026 (+326)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
3:00:27
Rank: #4906 (+120)
24M → 40K
6:32 | 7:38/mi
25.2M
3:03:14
Rank: #4832 (+74)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:11:10
Rank: #4855 (-23)
25.2M → Finish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:55
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:46:15
Pace8:06 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4717:305:3817:30
5:38
-
10K
6.21 mi10:36:0235:455:4518:15
5:52
+0:14
15K
9.32 mi10:56:4856:316:0420:46
6:41
+0:49
20K
12.43 mi11:20:581:20:416:3024:10
7:47
+1:06
Half
13.11 mi11:25:121:24:556:294:14
6:12
-1:35
25K
15.53 mi11:44:041:43:476:4118:52
7:47
+1:35
30K
18.64 mi12:08:332:08:166:5324:29
7:53
+0:06
20M
20.00 mi12:21:342:21:177:0413:01
9:35
+1:42
21M
21.00 mi12:30:252:30:087:098:51
8:51
-0:44
35K
21.75 mi12:37:102:36:537:136:45
9:01
+0:10
23M
23.00 mi12:47:332:47:167:1610:23
8:18
-0:43
24M
24.00 mi12:54:122:53:557:156:39
6:39
-1:39
40K
24.85 mi13:00:443:00:277:166:32
7:38
+0:59
25.2M
25.20 mi13:03:313:03:147:162:47
8:04
+0:26
Finish
26.22 mi13:11:273:11:107:187:56
7:47
-0:17

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

5:38 /mi

Average Pace

7:18 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:24

35% of race

Time at Steady Pace

1:35:09

50% of race

Time at Slower Pace

28:37

15% of race

Average Pace: 7:17 /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 mi10:17:4717:305:3817:30
5:38
#276
10K
6.21 mi10:36:0235:455:4518:15
5:52
#409
15K
9.32 mi10:56:4856:316:0420:46
6:41
#1007
20K
12.43 mi11:20:581:20:416:3024:10
7:47
#2647
Half
13.11 mi11:25:121:24:556:294:14
6:12
#2556
25K
15.53 mi11:44:041:43:476:4118:52
7:47
#3518
30K
18.64 mi12:08:332:08:166:5324:29
7:53
#4288
20M
20.00 mi12:21:342:21:177:0413:01
9:35
#5037
21M
21.00 mi12:30:252:30:087:098:51
8:51
#5119
35K
21.75 mi12:37:102:36:537:136:45
9:01
#5339
23M
23.00 mi12:47:332:47:167:1610:23
8:18
#5352
24M
24.00 mi12:54:122:53:557:156:39
6:39
#5026
40K
24.85 mi13:00:443:00:277:166:32
7:38
#4906
25.2M
25.20 mi13:03:313:03:147:162:47
8:04
#4832
Finish
26.22 mi13:11:273:11:107:187:56
7:47
#4855
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2762552553811(Top 15%)3589(Top 25%)3589(Top 74%)
10K6.21 mi3.10 mi409-133387-132387-132593(Top 2%)570(Top 4%)570(Top 12%)
15K9.32 mi3.11 mi1007-598969-582969-5823811(Top 15%)3589(Top 25%)3589(Top 74%)
20K12.43 mi3.11 mi2647-16402540-15712540-157110259(Top 40%)7768(Top 53%)7768(Top 160%)
Half13.11 mi0.68 mi2556+912452+882452+881362(Top 5%)1319(Top 9%)1319(Top 27%)
25K15.53 mi2.42 mi3518-9623335-8833335-8838785(Top 34%)6859(Top 47%)6859(Top 141%)
30K18.64 mi3.11 mi4288-7703978-6433978-6437163(Top 28%)5717(Top 39%)5717(Top 118%)
20M20.00 mi1.36 mi5037-7494577-5994577-59914830(Top 58%)9220(Top 63%)9220(Top 190%)
21M21.00 mi1.00 mi5119-824600-234600-237821(Top 31%)5701(Top 39%)5701(Top 118%)
35K21.75 mi0.75 mi5339-2204740-1404740-14013365(Top 52%)8327(Top 57%)8327(Top 172%)
23M23.00 mi1.25 mi5352-134714+264714+267271(Top 28%)5211(Top 36%)5211(Top 107%)
24M24.00 mi1.00 mi5026+3264458+2564458+2561279(Top 5%)1194(Top 8%)1194(Top 25%)
40K24.85 mi0.85 mi4906+1204338+1204338+1204059(Top 16%)3243(Top 22%)3243(Top 67%)
25.2M25.20 mi0.35 mi4832+744272+664272+662970(Top 12%)2507(Top 17%)2507(Top 52%)
Finish26.22 mi1.02 mi4855-234261+114261+117233(Top 28%)4984(Top 34%)4984(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3811

Males

3589

M18-39

3589

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

593

Males

570

M18-39

570

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3811

Males

3589

M18-39

3589

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10259

Males

7768

M18-39

7768

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1362

Males

1319

M18-39

1319

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

8785

Males

6859

M18-39

6859

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7163

Males

5717

M18-39

5717

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

14830

Males

9220

M18-39

9220

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

7821

Males

5701

M18-39

5701

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13365

Males

8327

M18-39

8327

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7271

Males

5211

M18-39

5211

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1279

Males

1194

M18-39

1194

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4059

Males

3243

M18-39

3243

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

2970

Males

2507

M18-39

2507

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7233

Males

4984

M18-39

4984

Passing Analysis

Category:
Athletes Passed
939
Passed By
5518
Net Change
-4579
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#276
5K → 10K3136-133#276#409
10K → 15K0598-598#409#1007
15K → 20K01640-1640#1007#2647
20K → Half910+91#2647#2556
Half → 25K7969-962#2556#3518
25K → 30K42812-770#3518#4288
30K → 20M16765-749#4288#5037
20M → 21M64146-82#5037#5119
21M → 35K27247-220#5119#5339
35K → 23M92105-13#5339#5352
23M → 24M3260+326#5352#5026
24M → 40K13919+120#5026#4906
40K → 25.2M762+74#4906#4832
25.2M → Finish5679-23#4832#4855
TOTALS9395518-4579
📊

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