Boston Marathon logo
BOSTON MARATHON 2023

Michael Swanton

Bib: 8276•M

CO

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 45%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:08
Rank: #4713
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
42:31
Rank: #5344 (-631)
5K → 10K
21:23 | 6:53/mi
15K· 9.32 mi
1:04:15
Rank: #5802 (-458)
10K → 15K
21:44 | 7:00/mi
20K· 12.43 mi
1:26:32
Rank: #6125 (-323)
15K → 20K
22:17 | 7:10/mi
Half· 13.11 mi
1:31:23
Rank: #6185 (-60)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:48:59
Rank: #6316 (-131)
Half → 25K
17:36 | 7:16/mi
30K· 18.64 mi
2:13:03
Rank: #6613 (-297)
25K → 30K
24:04 | 7:45/mi
20M
2:23:57
Rank: #6814 (-201)
30K → 20M
10:54 | 8:01/mi
21M
2:32:31
Rank: #6938 (-124)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:38:24
Rank: #7057 (-119)
21M → 35K
5:53 | 7:52/mi
23M
2:49:22
Rank: #7423 (-366)
35K → 23M
10:58 | 8:46/mi
24M
2:57:28
Rank: #7595 (-172)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:04:46
Rank: #7814 (-219)
24M → 40K
7:18 | 8:32/mi
25.2M
3:07:53
Rank: #7880 (-66)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:16:08
Rank: #8060 (-180)
25.2M → Finish
8:15 | 8:06/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
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:44:45
Pace7:59 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0921:086:4821:08
6:48
-
10K
6.21 mi11:07:3242:316:5121:23
6:53
+0:05
15K
9.32 mi11:29:161:04:156:5421:44
7:00
+0:07
20K
12.43 mi11:51:331:26:326:5822:17
7:10
+0:10
Half
13.11 mi11:56:241:31:236:584:51
7:07
-0:03
25K
15.53 mi12:14:001:48:597:0117:36
7:16
+0:09
30K
18.64 mi12:38:042:13:037:0824:04
7:45
+0:29
20M
20.00 mi12:48:582:23:577:1210:54
8:01
+0:16
21M
21.00 mi12:57:322:32:317:168:34
8:34
+0:33
35K
21.75 mi13:03:252:38:247:175:53
7:52
-0:42
23M
23.00 mi13:14:232:49:227:2210:58
8:46
+0:54
24M
24.00 mi13:22:292:57:287:248:06
8:06
-0:40
40K
24.85 mi13:29:473:04:467:267:18
8:32
+0:26
25.2M
25.20 mi13:32:543:07:537:273:07
9:02
+0:30
Finish
26.22 mi13:41:093:16:087:298:15
8:06
-0:56

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

6:48 /mi

Average Pace

7:29 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:59

56% of race

Time at Steady Pace

57:12

29% of race

Time at Slower Pace

29:57

15% of race

Average Pace: 7:29 /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 mi10:46:0921:086:4821:08
6:48
#4713
10K
6.21 mi11:07:3242:316:5121:23
6:53
#5344
15K
9.32 mi11:29:161:04:156:5421:44
7:00
#5802
20K
12.43 mi11:51:331:26:326:5822:17
7:10
#6125
Half
13.11 mi11:56:241:31:236:584:51
7:07
#6185
25K
15.53 mi12:14:001:48:597:0117:36
7:16
#6316
30K
18.64 mi12:38:042:13:037:0824:04
7:45
#6613
20M
20.00 mi12:48:582:23:577:1210:54
8:01
#6814
21M
21.00 mi12:57:322:32:317:168:34
8:34
#6938
35K
21.75 mi13:03:252:38:247:175:53
7:52
#7057
23M
23.00 mi13:14:232:49:227:2210:58
8:46
#7423
24M
24.00 mi13:22:292:57:287:248:06
8:06
#7595
40K
24.85 mi13:29:473:04:467:267:18
8:32
#7814
25.2M
25.20 mi13:32:543:07:537:273:07
9:02
#7880
Finish
26.22 mi13:41:093:16:087:298:15
8:06
#8060
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4713438743876531(Top 25%)5885(Top 39%)5885(Top 111%)
10K6.21 mi3.10 mi5344-6314939-5524939-5526011(Top 23%)5474(Top 36%)5474(Top 104%)
15K9.32 mi3.11 mi5802-4585324-3855324-3856531(Top 25%)5885(Top 39%)5885(Top 111%)
20K12.43 mi3.11 mi6125-3235574-2505574-2506921(Top 26%)6152(Top 41%)6152(Top 116%)
Half13.11 mi0.68 mi6185-605624-505624-507229(Top 27%)6398(Top 42%)6398(Top 121%)
25K15.53 mi2.42 mi6316-1315716-925716-927017(Top 26%)6171(Top 41%)6171(Top 117%)
30K18.64 mi3.11 mi6613-2975925-2095925-2098962(Top 34%)7257(Top 48%)7257(Top 137%)
20M20.00 mi1.36 mi6814-2016063-1386063-13810387(Top 39%)7945(Top 52%)7945(Top 150%)
21M21.00 mi1.00 mi6938-1246147-846147-8410829(Top 41%)8026(Top 53%)8026(Top 152%)
35K21.75 mi0.75 mi7057-1196225-786225-7811054(Top 42%)8123(Top 54%)8123(Top 154%)
23M23.00 mi1.25 mi7423-3666435-2106435-21014723(Top 55%)9674(Top 64%)9674(Top 183%)
24M24.00 mi1.00 mi7595-1726532-976532-9711893(Top 45%)8334(Top 55%)8334(Top 158%)
40K24.85 mi0.85 mi7814-2196647-1156647-11513543(Top 51%)9019(Top 59%)9019(Top 171%)
25.2M25.20 mi0.35 mi7880-666690-436690-4312650(Top 48%)8563(Top 56%)8563(Top 162%)
Finish26.22 mi1.02 mi8060-1806775-856775-8512703(Top 48%)8618(Top 57%)8618(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6531

Males

5885

M18-39

5885

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6011

Males

5474

M18-39

5474

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6531

Males

5885

M18-39

5885

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6921

Males

6152

M18-39

6152

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7229

Males

6398

M18-39

6398

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7017

Males

6171

M18-39

6171

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

8962

Males

7257

M18-39

7257

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10387

Males

7945

M18-39

7945

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10829

Males

8026

M18-39

8026

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11054

Males

8123

M18-39

8123

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14723

Males

9674

M18-39

9674

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11893

Males

8334

M18-39

8334

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13543

Males

9019

M18-39

9019

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12650

Males

8563

M18-39

8563

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12703

Males

8618

M18-39

8618

Passing Analysis

Category:
Athletes Passed
361
Passed By
3708
Net Change
-3347
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4713
5K → 10K54685-631#4713#5344
10K → 15K18476-458#5344#5802
15K → 20K33356-323#5802#6125
20K → Half565-60#6125#6185
Half → 25K45176-131#6185#6316
25K → 30K53350-297#6316#6613
30K → 20M14215-201#6613#6814
20M → 21M31155-124#6814#6938
21M → 35K8127-119#6938#7057
35K → 23M25391-366#7057#7423
23M → 24M23195-172#7423#7595
24M → 40K19238-219#7595#7814
40K → 25.2M975-66#7814#7880
25.2M → Finish24204-180#7880#8060
TOTALS3613708-3347
📊

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