Boston Marathon logo
BOSTON MARATHON 2023

Joshua Swett

Bib: 5416•M

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:52
Rank: #3801
Start → 5K
20:52 | 6:43/mi
10K· 6.21 mi
41:22
Rank: #3582 (+219)
5K → 10K
20:30 | 6:36/mi
15K· 9.32 mi
1:01:47
Rank: #3409 (+173)
10K → 15K
20:25 | 6:34/mi
20K· 12.43 mi
1:22:53
Rank: #3595 (-186)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:27:29
Rank: #3646 (-51)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:18
Rank: #4485 (-839)
Half → 25K
17:49 | 7:21/mi
30K· 18.64 mi
2:06:09
Rank: #4006 (+479)
25K → 30K
20:51 | 6:43/mi
20M
2:15:04
Rank: #3722 (+284)
30K → 20M
8:55 | 6:34/mi
21M
2:22:05
Rank: #3577 (+145)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:26:51
Rank: #3468 (+109)
21M → 35K
4:46 | 6:22/mi
23M
2:34:50
Rank: #3211 (+257)
35K → 23M
7:59 | 6:23/mi
24M
2:40:49
Rank: #2977 (+234)
23M → 24M
5:59 | 5:59/mi
40K· 24.85 mi
2:46:14
Rank: #2836 (+141)
24M → 40K
5:25 | 6:20/mi
25.2M
2:48:43
Rank: #2814 (+22)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:55:24
Rank: #2796 (+18)
25.2M → Finish
6:41 | 6:34/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 Half⚖️ Balanced
Distance13.11 mi
Time1:27:29
Pace6:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:55
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5320:526:4320:52
6:43
-
10K
6.21 mi10:44:2341:226:3920:30
6:36
-0:07
15K
9.32 mi11:04:481:01:476:3820:25
6:34
-0:02
20K
12.43 mi11:25:541:22:536:4021:06
6:47
+0:13
Half
13.11 mi11:30:301:27:296:404:36
6:45
-0:02
25K
15.53 mi11:48:191:45:186:4717:49
7:21
+0:36
30K
18.64 mi12:09:102:06:096:4620:51
6:43
-0:38
20M
20.00 mi12:18:052:15:046:458:55
6:34
-0:09
21M
21.00 mi12:25:062:22:056:467:01
7:01
+0:27
35K
21.75 mi12:29:522:26:516:454:46
6:22
-0:39
23M
23.00 mi12:37:512:34:506:447:59
6:23
+0:01
24M
24.00 mi12:43:502:40:496:425:59
5:59
-0:24
40K
24.85 mi12:49:152:46:146:415:25
6:20
+0:21
25.2M
25.20 mi12:51:442:48:436:422:29
7:12
+0:52
Finish
26.22 mi12:58:252:55:246:426:41
6:34
-0:38

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

5:59 /mi

Average Pace

6:42 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:09

14% of race

Time at Steady Pace

1:42:50

59% of race

Time at Slower Pace

48:25

28% of race

Average Pace: 6:41 /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 mi10:23:5320:526:4320:52
6:43
#3801
10K
6.21 mi10:44:2341:226:3920:30
6:36
#3582
15K
9.32 mi11:04:481:01:476:3820:25
6:34
#3409
20K
12.43 mi11:25:541:22:536:4021:06
6:47
#3595
Half
13.11 mi11:30:301:27:296:404:36
6:45
#3646
25K
15.53 mi11:48:191:45:186:4717:49
7:21
#4485
30K
18.64 mi12:09:102:06:096:4620:51
6:43
#4006
20M
20.00 mi12:18:052:15:046:458:55
6:34
#3722
21M
21.00 mi12:25:062:22:056:467:01
7:01
#3577
35K
21.75 mi12:29:522:26:516:454:46
6:22
#3468
23M
23.00 mi12:37:512:34:506:447:59
6:23
#3211
24M
24.00 mi12:43:502:40:496:425:59
5:59
#2977
40K
24.85 mi12:49:152:46:146:415:25
6:20
#2836
25.2M
25.20 mi12:51:442:48:436:422:29
7:12
#2814
Finish
26.22 mi12:58:252:55:246:426:41
6:34
#2796
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3801357235723062(Top 12%)2920(Top 19%)2920(Top 55%)
10K6.21 mi3.10 mi3582+2193380+1923380+1923476(Top 13%)3292(Top 22%)3292(Top 62%)
15K9.32 mi3.11 mi3409+1733230+1503230+1503062(Top 12%)2920(Top 19%)2920(Top 55%)
20K12.43 mi3.11 mi3595-1863403-1733403-1734344(Top 16%)4054(Top 27%)4054(Top 77%)
Half13.11 mi0.68 mi3646-513450-473450-474645(Top 17%)4307(Top 28%)4307(Top 81%)
25K15.53 mi2.42 mi4485-8394194-7444194-7447587(Top 28%)6529(Top 43%)6529(Top 124%)
30K18.64 mi3.11 mi4006+4793770+4243770+4242465(Top 9%)2347(Top 15%)2347(Top 44%)
20M20.00 mi1.36 mi3722+2843513+2573513+2571703(Top 6%)1626(Top 11%)1626(Top 31%)
21M21.00 mi1.00 mi3577+1453385+1283385+1282217(Top 8%)2095(Top 14%)2095(Top 40%)
35K21.75 mi0.75 mi3468+1093285+1003285+1001881(Top 7%)1787(Top 12%)1787(Top 34%)
23M23.00 mi1.25 mi3211+2573043+2423043+2421049(Top 4%)996(Top 7%)996(Top 19%)
24M24.00 mi1.00 mi2977+2342828+2152828+215527(Top 2%)498(Top 3%)498(Top 9%)
40K24.85 mi0.85 mi2836+1412696+1322696+1321024(Top 4%)971(Top 6%)971(Top 18%)
25.2M25.20 mi0.35 mi2814+222674+222674+222507(Top 9%)2320(Top 15%)2320(Top 44%)
Finish26.22 mi1.02 mi2796+182655+192655+192747(Top 10%)2505(Top 17%)2505(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3062

Males

2920

M18-39

2920

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3476

Males

3292

M18-39

3292

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3062

Males

2920

M18-39

2920

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4344

Males

4054

M18-39

4054

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4645

Males

4307

M18-39

4307

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7587

Males

6529

M18-39

6529

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2465

Males

2347

M18-39

2347

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1703

Males

1626

M18-39

1626

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2217

Males

2095

M18-39

2095

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1881

Males

1787

M18-39

1787

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1049

Males

996

M18-39

996

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

527

Males

498

M18-39

498

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1024

Males

971

M18-39

971

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2507

Males

2320

M18-39

2320

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2747

Males

2505

M18-39

2505

Passing Analysis

Category:
Athletes Passed
2312
Passed By
1307
Net Change
+1005
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3801
5K → 10K329110+219#3801#3582
10K → 15K20532+173#3582#3409
15K → 20K33219-186#3409#3595
20K → Half354-51#3595#3646
Half → 25K7846-839#3646#4485
25K → 30K4801+479#4485#4006
30K → 20M2840+284#4006#3722
20M → 21M1483+145#3722#3577
21M → 35K1145+109#3577#3468
35K → 23M2570+257#3468#3211
23M → 24M2340+234#3211#2977
24M → 40K1410+141#2977#2836
40K → 25.2M3210+22#2836#2814
25.2M → Finish4527+18#2814#2796
TOTALS23121307+1005
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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