Boston Marathon logo
BOSTON MARATHON 2024

Collin Smith

Bib: 646•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 9%
Gender (Male)
#0 / 14578
Top 15%
Division (M18-39)
#0 / 4849
Top 34%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:39
Rank: #941
Start → 5K
18:39 | 6:00/mi
10K· 6.21 mi
37:26
Rank: #952 (-11)
5K → 10K
18:47 | 6:03/mi
15K· 9.32 mi
56:10
Rank: #905 (+47)
10K → 15K
18:44 | 6:02/mi
20K· 12.43 mi
1:15:19
Rank: #898 (+7)
15K → 20K
19:09 | 6:10/mi
Half· 13.11 mi
1:19:30
Rank: #908 (-10)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:34:46
Rank: #920 (-12)
Half → 25K
15:16 | 6:18/mi
30K· 18.64 mi
1:55:14
Rank: #943 (-23)
25K → 30K
20:28 | 6:35/mi
20M
2:05:14
Rank: #1055 (-112)
30K → 20M
10:00 | 7:22/mi
21M
2:13:31
Rank: #1203 (-148)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:19:23
Rank: #1319 (-116)
21M → 35K
5:52 | 7:51/mi
23M
2:30:09
Rank: #1613 (-294)
35K → 23M
10:46 | 8:36/mi
24M
2:38:46
Rank: #1863 (-250)
23M → 24M
8:37 | 8:37/mi
40K· 24.85 mi
2:46:11
Rank: #2058 (-195)
24M → 40K
7:25 | 8:40/mi
25.2M
2:49:23
Rank: #2129 (-71)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
2:57:35
Rank: #2331 (-202)
25.2M → Finish
8:12 | 8:03/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:30
Pace6:04 /mi
2nd Half
Distance13.11 mi
Time1:38:05
Pace7:29 /mi
📊Positive Split: 23.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4418:396:0018:39
6:00
-
10K
6.21 mi10:37:3137:266:0118:47
6:03
+0:03
15K
9.32 mi10:56:1556:106:0218:44
6:02
-0:01
20K
12.43 mi11:15:241:15:196:0419:09
6:10
+0:08
Half
13.11 mi11:19:351:19:306:044:11
6:08
-0:02
25K
15.53 mi11:34:511:34:466:0615:16
6:18
+0:10
30K
18.64 mi11:55:191:55:146:1120:28
6:35
+0:17
20M
20.00 mi12:05:192:05:146:1610:00
7:22
+0:47
21M
21.00 mi12:13:362:13:316:218:17
8:17
+0:55
35K
21.75 mi12:19:282:19:236:255:52
7:51
-0:26
23M
23.00 mi12:30:142:30:096:3210:46
8:36
+0:45
24M
24.00 mi12:38:512:38:466:378:37
8:37
+0:01
40K
24.85 mi12:46:162:46:116:417:25
8:40
+0:03
25.2M
25.20 mi12:49:282:49:236:433:12
9:17
+0:37
Finish
26.22 mi12:57:402:57:356:478:12
8:03
-1:14

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

6:00 /mi

Average Pace

6:47 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:14

65% of race

Time at Steady Pace

15:52

9% of race

Time at Slower Pace

46:29

26% of race

Average Pace: 6:46 /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 mi10:18:4418:396:0018:39
6:00
#941
10K
6.21 mi10:37:3137:266:0118:47
6:03
#952
15K
9.32 mi10:56:1556:106:0218:44
6:02
#905
20K
12.43 mi11:15:241:15:196:0419:09
6:10
#898
Half
13.11 mi11:19:351:19:306:044:11
6:08
#908
25K
15.53 mi11:34:511:34:466:0615:16
6:18
#920
30K
18.64 mi11:55:191:55:146:1120:28
6:35
#943
20M
20.00 mi12:05:192:05:146:1610:00
7:22
#1055
21M
21.00 mi12:13:362:13:316:218:17
8:17
#1203
35K
21.75 mi12:19:282:19:236:255:52
7:51
#1319
23M
23.00 mi12:30:142:30:096:3210:46
8:36
#1613
24M
24.00 mi12:38:512:38:466:378:37
8:37
#1863
40K
24.85 mi12:46:162:46:116:417:25
8:40
#2058
25.2M
25.20 mi12:49:282:49:236:433:12
9:17
#2129
Finish
26.22 mi12:57:402:57:356:478:12
8:03
#2331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi941905905853(Top 3%)826(Top 6%)826(Top 17%)
10K6.21 mi3.10 mi952-11916-11916-111003(Top 4%)966(Top 7%)966(Top 20%)
15K9.32 mi3.11 mi905+47872+44872+44853(Top 3%)826(Top 6%)826(Top 17%)
20K12.43 mi3.11 mi898+7863+9863+9961(Top 4%)927(Top 6%)927(Top 19%)
Half13.11 mi0.68 mi908-10873-10873-101130(Top 4%)1095(Top 8%)1095(Top 23%)
25K15.53 mi2.42 mi920-12886-13886-131133(Top 4%)1095(Top 8%)1095(Top 23%)
30K18.64 mi3.11 mi943-23910-24910-241298(Top 5%)1241(Top 9%)1241(Top 26%)
20M20.00 mi1.36 mi1055-1121017-1071017-1073756(Top 15%)3363(Top 23%)3363(Top 69%)
21M21.00 mi1.00 mi1203-1481159-1421159-1425223(Top 20%)4229(Top 29%)4229(Top 87%)
35K21.75 mi0.75 mi1319-1161271-1121271-1126769(Top 26%)5095(Top 35%)5095(Top 105%)
23M23.00 mi1.25 mi1613-2941548-2771548-2778975(Top 35%)6085(Top 42%)6085(Top 125%)
24M24.00 mi1.00 mi1863-2501782-2341782-23410096(Top 40%)6567(Top 45%)6567(Top 135%)
40K24.85 mi0.85 mi2058-1951965-1831965-1839213(Top 36%)5988(Top 41%)5988(Top 123%)
25.2M25.20 mi0.35 mi2129-712023-582023-587728(Top 30%)5148(Top 35%)5148(Top 106%)
Finish26.22 mi1.02 mi2331-2022189-1662189-1668776(Top 34%)5792(Top 40%)5792(Top 119%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

853

Males

826

M18-39

826

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1003

Males

966

M18-39

966

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

853

Males

826

M18-39

826

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

961

Males

927

M18-39

927

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1130

Males

1095

M18-39

1095

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1133

Males

1095

M18-39

1095

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1298

Males

1241

M18-39

1241

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3756

Males

3363

M18-39

3363

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5223

Males

4229

M18-39

4229

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6769

Males

5095

M18-39

5095

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

8975

Males

6085

M18-39

6085

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10096

Males

6567

M18-39

6567

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9213

Males

5988

M18-39

5988

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7728

Males

5148

M18-39

5148

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

8776

Males

5792

M18-39

5792

Passing Analysis

Category:
Athletes Passed
287
Passed By
1677
Net Change
-1390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#941
5K → 10K4960-11#941#952
10K → 15K5811+47#952#905
15K → 20K4437+7#905#898
20K → Half414-10#898#908
Half → 25K3547-12#908#920
25K → 30K4366-23#920#943
30K → 20M14126-112#943#1055
20M → 21M5153-148#1055#1203
21M → 35K4120-116#1203#1319
35K → 23M6300-294#1319#1613
23M → 24M7257-250#1613#1863
24M → 40K3198-195#1863#2058
40K → 25.2M475-71#2058#2129
25.2M → Finish11213-202#2129#2331
TOTALS2871677-1390
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing