Boston Marathon logo
BOSTON MARATHON 2023

James Fleming

Bib: 27061•M

NH

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
29:29
Rank: #22054
Start → 5K
29:29 | 9:29/mi
10K· 6.21 mi
58:39
Rank: #22165 (-111)
5K → 10K
29:10 | 9:23/mi
15K· 9.32 mi
1:26:31
Rank: #21642 (+523)
10K → 15K
27:52 | 8:58/mi
20K· 12.43 mi
1:55:02
Rank: #21370 (+272)
15K → 20K
28:31 | 9:11/mi
Half· 13.11 mi
2:01:08
Rank: #21311 (+59)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:23:19
Rank: #21029 (+282)
Half → 25K
22:11 | 9:09/mi
30K· 18.64 mi
2:53:55
Rank: #20932 (+97)
25K → 30K
30:36 | 9:51/mi
20M
3:07:41
Rank: #20903 (+29)
30K → 20M
13:46 | 10:08/mi
21M
3:18:38
Rank: #20881 (+22)
20M → 21M
10:57 | 10:57/mi
35K· 21.75 mi
3:25:46
Rank: #20835 (+46)
21M → 35K
7:08 | 9:32/mi
23M
3:38:59
Rank: #20859 (-24)
35K → 23M
13:13 | 10:33/mi
24M
3:49:19
Rank: #20896 (-37)
23M → 24M
10:20 | 10:20/mi
40K· 24.85 mi
3:58:22
Rank: #20912 (-16)
24M → 40K
9:03 | 10:35/mi
25.2M
4:02:20
Rank: #20919 (-7)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:12:21
Rank: #20923 (-4)
25.2M → Finish
10:01 | 9:50/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
Time2:01:08
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:11:13
Pace10:01 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1129:299:2929:29
9:29
-
10K
6.21 mi12:22:2158:399:2629:10
9:23
-0:06
15K
9.32 mi12:50:131:26:319:1727:52
8:58
-0:25
20K
12.43 mi13:18:441:55:029:1528:31
9:11
+0:13
Half
13.11 mi13:24:502:01:089:146:06
8:56
-0:15
25K
15.53 mi13:47:012:23:199:1422:11
9:09
+0:13
30K
18.64 mi14:17:372:53:559:2030:36
9:51
+0:42
20M
20.00 mi14:31:233:07:419:2313:46
10:08
+0:17
21M
21.00 mi14:42:203:18:389:2810:57
10:57
+0:49
35K
21.75 mi14:49:283:25:469:287:08
9:32
-1:25
23M
23.00 mi15:02:413:38:599:3113:13
10:33
+1:01
24M
24.00 mi15:13:013:49:199:3310:20
10:20
-0:13
40K
24.85 mi15:22:043:58:229:359:03
10:35
+0:15
25.2M
25.20 mi15:26:024:02:209:373:58
11:30
+0:55
Finish
26.22 mi15:36:034:12:219:3810:01
9:50
-1:40

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

8:56 /mi

Average Pace

9:38 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:50

45% of race

Time at Steady Pace

1:31:00

36% of race

Time at Slower Pace

47:31

19% of race

Average Pace: 9:37 /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 mi11:53:1129:299:2929:29
9:29
#22054
10K
6.21 mi12:22:2158:399:2629:10
9:23
#22165
15K
9.32 mi12:50:131:26:319:1727:52
8:58
#21642
20K
12.43 mi13:18:441:55:029:1528:31
9:11
#21370
Half
13.11 mi13:24:502:01:089:146:06
8:56
#21311
25K
15.53 mi13:47:012:23:199:1422:11
9:09
#21029
30K
18.64 mi14:17:372:53:559:2030:36
9:51
#20932
20M
20.00 mi14:31:233:07:419:2313:46
10:08
#20903
21M
21.00 mi14:42:203:18:389:2810:57
10:57
#20881
35K
21.75 mi14:49:283:25:469:287:08
9:32
#20835
23M
23.00 mi15:02:413:38:599:3113:13
10:33
#20859
24M
24.00 mi15:13:013:49:199:3310:20
10:20
#20896
40K
24.85 mi15:22:043:58:229:359:03
10:35
#20912
25.2M
25.20 mi15:26:024:02:209:373:58
11:30
#20919
Finish
26.22 mi15:36:034:12:219:3810:01
9:50
#20923
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22054131251312520357(Top 76%)12459(Top 82%)12459(Top 236%)
10K6.21 mi3.10 mi22165-11113212-8713212-8722185(Top 83%)13246(Top 87%)13246(Top 251%)
15K9.32 mi3.11 mi21642+52312982+23012982+23020357(Top 76%)12459(Top 82%)12459(Top 236%)
20K12.43 mi3.11 mi21370+27212874+10812874+10820479(Top 77%)12510(Top 82%)12510(Top 237%)
Half13.11 mi0.68 mi21311+5912850+2412850+2420164(Top 76%)12391(Top 82%)12391(Top 234%)
25K15.53 mi2.42 mi21029+28212725+12512725+12519606(Top 74%)12112(Top 80%)12112(Top 229%)
30K18.64 mi3.11 mi20932+9712672+5312672+5320597(Top 77%)12467(Top 82%)12467(Top 236%)
20M20.00 mi1.36 mi20903+2912643+2912643+2920819(Top 78%)12486(Top 82%)12486(Top 236%)
21M21.00 mi1.00 mi20881+2212618+2512618+2520712(Top 78%)12391(Top 82%)12391(Top 234%)
35K21.75 mi0.75 mi20835+4612582+3612582+3619947(Top 75%)12028(Top 79%)12028(Top 228%)
23M23.00 mi1.25 mi20859-2412583-112583-121444(Top 81%)12662(Top 83%)12662(Top 240%)
24M24.00 mi1.00 mi20896-3712588-512588-521627(Top 81%)12698(Top 84%)12698(Top 240%)
40K24.85 mi0.85 mi20912-1612585+312585+321409(Top 80%)12541(Top 83%)12541(Top 237%)
25.2M25.20 mi0.35 mi20919-712583+212583+221550(Top 81%)12641(Top 83%)12641(Top 239%)
Finish26.22 mi1.02 mi20923-412573+1012573+1021243(Top 80%)12535(Top 83%)12535(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20357

Males

12459

M18-39

12459

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22185

Males

13246

M18-39

13246

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20357

Males

12459

M18-39

12459

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20479

Males

12510

M18-39

12510

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20164

Males

12391

M18-39

12391

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

19606

Males

12112

M18-39

12112

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20597

Males

12467

M18-39

12467

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20819

Males

12486

M18-39

12486

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20712

Males

12391

M18-39

12391

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19947

Males

12028

M18-39

12028

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21444

Males

12662

M18-39

12662

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21627

Males

12698

M18-39

12698

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21409

Males

12541

M18-39

12541

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21550

Males

12641

M18-39

12641

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21243

Males

12535

M18-39

12535

Passing Analysis

Category:
Athletes Passed
1991
Passed By
860
Net Change
+1131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22054
5K → 10K188299-111#22054#22165
10K → 15K5329+523#22165#21642
15K → 20K30937+272#21642#21370
20K → Half634+59#21370#21311
Half → 25K2919+282#21311#21029
25K → 30K19699+97#21029#20932
30K → 20M9162+29#20932#20903
20M → 21M6846+22#20903#20881
21M → 35K6115+46#20881#20835
35K → 23M6387-24#20835#20859
23M → 24M3673-37#20859#20896
24M → 40K2844-16#20896#20912
40K → 25.2M1522-7#20912#20919
25.2M → Finish5054-4#20919#20923
TOTALS1991860+1131
📊

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