Boston Marathon logo
BOSTON MARATHON 2023

Michael Barton

Bib: 21079•M

AB

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
26:29
Rank: #17712
Start → 5K
26:29 | 8:31/mi
10K· 6.21 mi
52:37
Rank: #17697 (+15)
5K → 10K
26:08 | 8:25/mi
15K· 9.32 mi
1:17:47
Rank: #16814 (+883)
10K → 15K
25:10 | 8:06/mi
20K· 12.43 mi
1:43:50
Rank: #16660 (+154)
15K → 20K
26:03 | 8:23/mi
Half· 13.11 mi
1:49:30
Rank: #16652 (+8)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:10:40
Rank: #16806 (-154)
Half → 25K
21:10 | 8:44/mi
30K· 18.64 mi
2:38:27
Rank: #16774 (+32)
25K → 30K
27:47 | 8:57/mi
20M
2:50:49
Rank: #16782 (-8)
30K → 20M
12:22 | 9:06/mi
21M
3:00:27
Rank: #16757 (+25)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
3:07:11
Rank: #16794 (-37)
21M → 35K
6:44 | 9:00/mi
23M
3:18:49
Rank: #16841 (-47)
35K → 23M
11:38 | 9:17/mi
24M
3:28:14
Rank: #16958 (-117)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:36:16
Rank: #17000 (-42)
24M → 40K
8:02 | 9:24/mi
25.2M
3:39:48
Rank: #17040 (-40)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:49:22
Rank: #17203 (-163)
25.2M → Finish
9:34 | 9:23/mi

Course Map & Elevation

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
Time1:49:30
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:59:52
Pace9:09 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1826:298:3126:29
8:31
-
10K
6.21 mi11:45:2652:378:2826:08
8:25
-0:06
15K
9.32 mi12:10:361:17:478:2125:10
8:06
-0:19
20K
12.43 mi12:36:391:43:508:2126:03
8:23
+0:17
Half
13.11 mi12:42:191:49:308:215:40
8:18
-0:05
25K
15.53 mi13:03:292:10:408:2521:10
8:44
+0:26
30K
18.64 mi13:31:162:38:278:3027:47
8:57
+0:13
20M
20.00 mi13:43:382:50:498:3212:22
9:06
+0:09
21M
21.00 mi13:53:163:00:278:369:38
9:38
+0:32
35K
21.75 mi14:00:003:07:118:366:44
9:00
-0:38
23M
23.00 mi14:11:383:18:498:3911:38
9:17
+0:17
24M
24.00 mi14:21:033:28:148:419:25
9:25
+0:08
40K
24.85 mi14:29:053:36:168:428:02
9:24
-0:01
25.2M
25.20 mi14:32:373:39:488:433:32
10:15
+0:51
Finish
26.22 mi14:42:113:49:228:459:34
9:23
-0:52

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

8:06 /mi

Average Pace

8:45 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:49:30

48% of race

Time at Steady Pace

1:19:41

35% of race

Time at Slower Pace

40:11

18% of race

Average Pace: 8:45 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:19:1826:298:3126:29
8:31
#17712
10K
6.21 mi11:45:2652:378:2826:08
8:25
#17697
15K
9.32 mi12:10:361:17:478:2125:10
8:06
#16814
20K
12.43 mi12:36:391:43:508:2126:03
8:23
#16660
Half
13.11 mi12:42:191:49:308:215:40
8:18
#16652
25K
15.53 mi13:03:292:10:408:2521:10
8:44
#16806
30K
18.64 mi13:31:162:38:278:3027:47
8:57
#16774
20M
20.00 mi13:43:382:50:498:3212:22
9:06
#16782
21M
21.00 mi13:53:163:00:278:369:38
9:38
#16757
35K
21.75 mi14:00:003:07:118:366:44
9:00
#16794
23M
23.00 mi14:11:383:18:498:3911:38
9:17
#16841
24M
24.00 mi14:21:033:28:148:419:25
9:25
#16958
40K
24.85 mi14:29:053:36:168:428:02
9:24
#17000
25.2M
25.20 mi14:32:373:39:488:433:32
10:15
#17040
Finish
26.22 mi14:42:113:49:228:459:34
9:23
#17203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17712113131131315162(Top 57%)10374(Top 68%)10374(Top 935%)
10K6.21 mi3.10 mi17697+1511331-1811331-1817643(Top 66%)11354(Top 75%)11354(Top 1023%)
15K9.32 mi3.11 mi16814+88310993+33810993+33815162(Top 57%)10374(Top 68%)10374(Top 935%)
20K12.43 mi3.11 mi16660+15410927+6610927+6616152(Top 61%)10690(Top 70%)10690(Top 963%)
Half13.11 mi0.68 mi16652+810917+1010917+1016487(Top 62%)10879(Top 72%)10879(Top 980%)
25K15.53 mi2.42 mi16806-15410946-2910946-2917526(Top 66%)11208(Top 74%)11208(Top 1010%)
30K18.64 mi3.11 mi16774+3210918+2810918+2816870(Top 63%)10858(Top 72%)10858(Top 978%)
20M20.00 mi1.36 mi16782-810906+1210906+1217039(Top 64%)10835(Top 71%)10835(Top 976%)
21M21.00 mi1.00 mi16757+2510893+1310893+1316566(Top 62%)10597(Top 70%)10597(Top 955%)
35K21.75 mi0.75 mi16794-3710900-710900-717893(Top 67%)11094(Top 73%)11094(Top 999%)
23M23.00 mi1.25 mi16841-4710896+410896+417464(Top 66%)10897(Top 72%)10897(Top 982%)
24M24.00 mi1.00 mi16958-11710919-2310919-2318893(Top 71%)11484(Top 76%)11484(Top 1035%)
40K24.85 mi0.85 mi17000-4210917+210917+217913(Top 67%)10987(Top 72%)10987(Top 990%)
25.2M25.20 mi0.35 mi17040-4010933-1610933-1618239(Top 69%)11134(Top 73%)11134(Top 1003%)
Finish26.22 mi1.02 mi17203-16310995-6210995-6219703(Top 74%)11844(Top 78%)11844(Top 1067%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15162

Males

10374

M60-64

10374

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17643

Males

11354

M60-64

11354

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15162

Males

10374

M60-64

10374

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16152

Males

10690

M60-64

10690

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16487

Males

10879

M60-64

10879

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17526

Males

11208

M60-64

11208

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16870

Males

10858

M60-64

10858

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17039

Males

10835

M60-64

10835

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16566

Males

10597

M60-64

10597

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17893

Males

11094

M60-64

11094

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17464

Males

10897

M60-64

10897

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18893

Males

11484

M60-64

11484

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17913

Males

10987

M60-64

10987

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18239

Males

11134

M60-64

11134

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19703

Males

11844

M60-64

11844

Passing Analysis

Category:
Athletes Passed
2154
Passed By
1645
Net Change
+509
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17712
5K → 10K319304+15#17712#17697
10K → 15K89714+883#17697#16814
15K → 20K255101+154#16814#16660
20K → Half3426+8#16660#16652
Half → 25K89243-154#16652#16806
25K → 30K183151+32#16806#16774
30K → 20M8290-8#16774#16782
20M → 21M8863+25#16782#16757
21M → 35K3774-37#16757#16794
35K → 23M60107-47#16794#16841
23M → 24M32149-117#16841#16958
24M → 40K4486-42#16958#17000
40K → 25.2M1050-40#17000#17040
25.2M → Finish24187-163#17040#17203
TOTALS21541645+509
📊

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