Boston Marathon logo
BOSTON MARATHON 2023

N. Peter Armitage

Bib: 10209•M

MD

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:24
Rank: #9907
Start → 5K
23:24 | 7:32/mi
10K· 6.21 mi
46:51
Rank: #10391 (-484)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:11:07
Rank: #11192 (-801)
10K → 15K
24:16 | 7:49/mi
20K· 12.43 mi
1:35:32
Rank: #11414 (-222)
15K → 20K
24:25 | 7:52/mi
Half· 13.11 mi
1:40:52
Rank: #11486 (-72)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:00:32
Rank: #11796 (-310)
Half → 25K
19:40 | 8:07/mi
30K· 18.64 mi
2:27:23
Rank: #12522 (-726)
25K → 30K
26:51 | 8:39/mi
20M
2:39:16
Rank: #12734 (-212)
30K → 20M
11:53 | 8:45/mi
21M
2:48:47
Rank: #12961 (-227)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
2:55:19
Rank: #13104 (-143)
21M → 35K
6:32 | 8:44/mi
23M
3:09:29
Rank: #14233 (-1129)
35K → 23M
14:10 | 11:19/mi
24M
3:20:20
Rank: #14886 (-653)
23M → 24M
10:51 | 10:51/mi
40K· 24.85 mi
3:28:42
Rank: #15088 (-202)
24M → 40K
8:22 | 9:47/mi
25.2M
3:32:13
Rank: #15132 (-44)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:41:58
Rank: #15442 (-310)
25.2M → Finish
9:45 | 9:34/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 HalfFaster
Distance13.11 mi
Time1:40:52
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time2:01:06
Pace9:14 /mi
📊Positive Split: 20.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1723:247:3223:24
7:32
-
10K
6.21 mi11:14:4446:517:3223:27
7:33
+0:01
15K
9.32 mi11:39:001:11:077:3824:16
7:49
+0:16
20K
12.43 mi12:03:251:35:327:4124:25
7:52
+0:03
Half
13.11 mi12:08:451:40:527:425:20
7:49
-0:03
25K
15.53 mi12:28:252:00:327:4619:40
8:07
+0:18
30K
18.64 mi12:55:162:27:237:5426:51
8:39
+0:32
20M
20.00 mi13:07:092:39:167:5811:53
8:45
+0:06
21M
21.00 mi13:16:402:48:478:029:31
9:31
+0:46
35K
21.75 mi13:23:122:55:198:046:32
8:44
-0:47
23M
23.00 mi13:37:223:09:298:1414:10
11:19
+2:35
24M
24.00 mi13:48:133:20:208:2110:51
10:51
-0:28
40K
24.85 mi13:56:353:28:428:248:22
9:47
-1:04
25.2M
25.20 mi14:00:063:32:138:253:31
10:12
+0:25
Finish
26.22 mi14:09:513:41:588:289:45
9:34
-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

7:32 /mi

Average Pace

8:28 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:32

54% of race

Time at Steady Pace

45:16

20% of race

Time at Slower Pace

56:10

25% of race

Average Pace: 8:28 /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 mi10:51:1723:247:3223:24
7:32
#9907
10K
6.21 mi11:14:4446:517:3223:27
7:33
#10391
15K
9.32 mi11:39:001:11:077:3824:16
7:49
#11192
20K
12.43 mi12:03:251:35:327:4124:25
7:52
#11414
Half
13.11 mi12:08:451:40:527:425:20
7:49
#11486
25K
15.53 mi12:28:252:00:327:4619:40
8:07
#11796
30K
18.64 mi12:55:162:27:237:5426:51
8:39
#12522
20M
20.00 mi13:07:092:39:167:5811:53
8:45
#12734
21M
21.00 mi13:16:402:48:478:029:31
9:31
#12961
35K
21.75 mi13:23:122:55:198:046:32
8:44
#13104
23M
23.00 mi13:37:223:09:298:1414:10
11:19
#14233
24M
24.00 mi13:48:133:20:208:2110:51
10:51
#14886
40K
24.85 mi13:56:353:28:428:248:22
9:47
#15088
25.2M
25.20 mi14:00:063:32:138:253:31
10:12
#15132
Finish
26.22 mi14:09:513:41:588:289:45
9:34
#15442
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi99078086808612817(Top 48%)9449(Top 62%)9449(Top 460%)
10K6.21 mi3.10 mi10391-4848358-2728358-27210854(Top 41%)8609(Top 57%)8609(Top 420%)
15K9.32 mi3.11 mi11192-8018745-3878745-38712817(Top 48%)9449(Top 62%)9449(Top 460%)
20K12.43 mi3.11 mi11414-2228840-958840-9512240(Top 46%)9122(Top 60%)9122(Top 445%)
Half13.11 mi0.68 mi11486-728855-158855-1512852(Top 48%)9445(Top 62%)9445(Top 460%)
25K15.53 mi2.42 mi11796-3108973-1188973-11813577(Top 51%)9596(Top 63%)9596(Top 468%)
30K18.64 mi3.11 mi12522-7269237-2649237-26415170(Top 57%)10111(Top 67%)10111(Top 493%)
20M20.00 mi1.36 mi12734-2129300-639300-6315119(Top 57%)10035(Top 66%)10035(Top 489%)
21M21.00 mi1.00 mi12961-2279381-819381-8116011(Top 60%)10354(Top 68%)10354(Top 505%)
35K21.75 mi0.75 mi13104-1439433-529433-5216555(Top 62%)10507(Top 69%)10507(Top 512%)
23M23.00 mi1.25 mi14233-11299847-4149847-41422906(Top 86%)13343(Top 88%)13343(Top 650%)
24M24.00 mi1.00 mi14886-65310083-23610083-23622745(Top 85%)13222(Top 87%)13222(Top 644%)
40K24.85 mi0.85 mi15088-20210140-5710140-5719329(Top 73%)11628(Top 77%)11628(Top 567%)
25.2M25.20 mi0.35 mi15132-4410147-710147-718061(Top 68%)11044(Top 73%)11044(Top 538%)
Finish26.22 mi1.02 mi15442-31010249-10210249-10220334(Top 76%)12108(Top 80%)12108(Top 590%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12817

Males

9449

M50-54

9449

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10854

Males

8609

M50-54

8609

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12817

Males

9449

M50-54

9449

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12240

Males

9122

M50-54

9122

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12852

Males

9445

M50-54

9445

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13577

Males

9596

M50-54

9596

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15170

Males

10111

M50-54

10111

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15119

Males

10035

M50-54

10035

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16011

Males

10354

M50-54

10354

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16555

Males

10507

M50-54

10507

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22906

Males

13343

M50-54

13343

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22745

Males

13222

M50-54

13222

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19329

Males

11628

M50-54

11628

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18061

Males

11044

M50-54

11044

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20334

Males

12108

M50-54

12108

Passing Analysis

Category:
Athletes Passed
574
Passed By
6108
Net Change
-5535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9907
5K → 10K137620-484#9907#10391
10K → 15K29830-801#10391#11192
15K → 20K99321-222#11192#11414
20K → Half1385-72#11414#11486
Half → 25K60370-310#11486#11796
25K → 30K57783-726#11796#12522
30K → 20M48260-212#12522#12734
20M → 21M42269-227#12734#12961
21M → 35K17160-143#12961#13104
35K → 23M21131-1129#13104#14233
23M → 24M8661-653#14233#14886
24M → 40K26228-202#14886#15088
40K → 25.2M2165-44#15088#15132
25.2M → Finish15325-310#15132#15442
TOTALS5746108-5535
📊

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