Boston Marathon logo
BOSTON MARATHON 2025

James Concannon

Bib: 31182•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:36/mi
32:57
↑ 97↓ 3451.5%
10K· 6.21 mi
11:17/mi
1:08:01
↑ 79↓ 1380.4%
15K· 9.32 mi
11:55/mi
1:45:02
↑ 67↓ 78
20K· 12.43 mi
11:59/mi
2:22:17
↑ 106↓ 860.1%
Half· 13.11 mi
12:01/mi
2:30:29
↑ 19↓ 370.5%
25K· 15.53 mi
13:00/mi
3:02:00
↑ 66↓ 880.2%
30K· 18.64 mi
13:26/mi
3:43:44
↑ 181↓ 1480.2%
20M
13:37/mi
4:02:14
↑ 64↓ 500.2%
21M
15:06/mi
4:17:20
↑ 106↓ 241.6%
35K· 21.75 mi
12:06/mi
4:26:23
↑ 17↓ 861.7%
23M
12:40/mi
4:42:14
↑ 23↓ 630.6%
24M
13:02/mi
4:55:16
↓ 821.3%
40K· 24.85 mi
14:18/mi
5:07:30
↓ 200.3%
25.2M
14:01/mi
5:12:20
↑ 13↓ 160.2%
Finish· 26.22 mi
11:23/mi
5:23:56
↑ 22↓ 21

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
Time2:30:29
Pace11:29 /mi
2nd Half
Distance13.11 mi
Time2:53:27
Pace13:14 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:4232:5710:3632:57
10:36
-
10K
6.21 mi12:30:461:08:0110:5735:04
11:17
+0:41
15K
9.32 mi13:07:471:45:0211:1637:01
11:55
+0:38
20K
12.43 mi13:45:022:22:1711:2737:15
11:59
+0:04
Half
13.11 mi13:53:142:30:2911:298:12
12:01
+0:02
25K
15.53 mi14:24:453:02:0011:4331:31
13:00
+0:59
30K
18.64 mi15:06:293:43:4412:0041:44
13:26
+0:26
20M
20.00 mi15:24:594:02:1412:0718:30
13:37
+0:11
21M
21.00 mi15:40:054:17:2012:1515:06
15:06
+1:29
35K
21.75 mi15:49:084:26:2312:159:03
12:06
-3:00
23M
23.00 mi16:04:594:42:1412:1615:51
12:40
+0:34
24M
24.00 mi16:18:014:55:1612:1813:02
13:02
+0:22
40K
24.85 mi16:30:155:07:3012:2212:14
14:18
+1:16
25.2M
25.20 mi16:35:055:12:2012:244:50
14:01
-0:17
Finish
26.22 mi16:46:415:23:5612:2211:36
11:23
-2:38

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

10:36 /mi

Average Pace

12:22 /mi

Slowest Pace

15:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:05

50% of race

Time at Steady Pace

1:09:27

21% of race

Time at Slower Pace

1:32:24

29% of race

Average Pace: 12:21 /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 mi11:55:4232:5710:3632:57
10:36
#26972
10K
6.21 mi12:30:461:08:0110:5735:04
11:17
#27245
15K
9.32 mi13:07:471:45:0211:1637:01
11:55
#27397
20K
12.43 mi13:45:022:22:1711:2737:15
11:59
#27328
Half
13.11 mi13:53:142:30:2911:298:12
12:01
#27340
25K
15.53 mi14:24:453:02:0011:4331:31
13:00
#27338
30K
18.64 mi15:06:293:43:4412:0041:44
13:26
#27288
20M
20.00 mi15:24:594:02:1412:0718:30
13:37
#27290
21M
21.00 mi15:40:054:17:2012:1515:06
15:06
#27310
35K
21.75 mi15:49:084:26:2312:159:03
12:06
#27279
23M
23.00 mi16:04:594:42:1412:1615:51
12:40
#27225
24M
24.00 mi16:18:014:55:1612:1813:02
13:02
#27220
40K
24.85 mi16:30:155:07:3012:2212:14
14:18
#27241
25.2M
25.20 mi16:35:055:12:2012:244:50
14:01
#27242
Finish
26.22 mi16:46:415:23:5612:2211:36
11:23
#27203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26972155941559427568(Top 97%)15770(Top 98%)15770(Top 280%)
10K6.21 mi3.10 mi27245-27315674-8015674-8027381(Top 96%)15719(Top 98%)15719(Top 279%)
15K9.32 mi3.11 mi27397-15215740-6615740-6627568(Top 97%)15770(Top 98%)15770(Top 280%)
20K12.43 mi3.11 mi27328+6915702+3815702+3827111(Top 95%)15578(Top 97%)15578(Top 276%)
Half13.11 mi0.68 mi27340-1215705-315705-327472(Top 97%)15702(Top 97%)15702(Top 278%)
25K15.53 mi2.42 mi27338+215690+1515690+1527296(Top 96%)15634(Top 97%)15634(Top 277%)
30K18.64 mi3.11 mi27288+5015642+4815642+4827092(Top 95%)15475(Top 96%)15475(Top 274%)
20M20.00 mi1.36 mi27290-2156421564227006(Top 95%)15377(Top 95%)15377(Top 273%)
21M21.00 mi1.00 mi27310-20156421564227237(Top 96%)15480(Top 96%)15480(Top 274%)
35K21.75 mi0.75 mi27279+3115624+1815624+1826006(Top 92%)14838(Top 92%)14838(Top 263%)
23M23.00 mi1.25 mi27225+5415594+3015594+3026000(Top 92%)14842(Top 92%)14842(Top 263%)
24M24.00 mi1.00 mi27220+515586+815586+826898(Top 95%)15245(Top 95%)15245(Top 270%)
40K24.85 mi0.85 mi27241-2115592-615592-627399(Top 96%)15507(Top 96%)15507(Top 275%)
25.2M25.20 mi0.35 mi27242-115591+115591+126314(Top 93%)14905(Top 93%)14905(Top 264%)
Finish26.22 mi1.02 mi27203+3915567+2415567+2425987(Top 91%)14781(Top 92%)14781(Top 262%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27568

Males

15770

M18-39

15770

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

27381

Males

15719

M18-39

15719

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27568

Males

15770

M18-39

15770

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

27111

Males

15578

M18-39

15578

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

27472

Males

15702

M18-39

15702

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

27296

Males

15634

M18-39

15634

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

27092

Males

15475

M18-39

15475

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

27006

Males

15377

M18-39

15377

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27237

Males

15480

M18-39

15480

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26006

Males

14838

M18-39

14838

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26000

Males

14842

M18-39

14842

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

26898

Males

15245

M18-39

15245

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27399

Males

15507

M18-39

15507

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26314

Males

14905

M18-39

14905

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

25987

Males

14781

M18-39

14781

Passing Analysis

Category:
Athletes Passed
638
Passed By
869
Net Change
-231
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26972
5K → 10K58331-273#26972#27245
10K → 15K53205-152#27245#27397
15K → 20K12859+69#27397#27328
20K → Half1325-12#27328#27340
Half → 25K7169+2#27340#27338
25K → 30K9949+50#27338#27288
30K → 20M2325-2#27288#27290
20M → 21M1838-20#27290#27310
21M → 35K376+31#27310#27279
35K → 23M584+54#27279#27225
23M → 24M2015+5#27225#27220
24M → 40K1031-21#27220#27241
40K → 25.2M78-1#27241#27242
25.2M → Finish434+39#27242#27203
TOTALS638869-231
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing